@article{MTMT:34771049, title = {Bipolar membrane crystallization enables near zero-waste production of high-purity oxalic acid crystals}, url = {https://m2.mtmt.hu/api/publication/34771049}, author = {Hou, B. and Wang, H. and Yan, J. and Li, R. and Wu, S. and Wang, B. and Wang, Y. and Xu, T.}, doi = {10.1016/j.ces.2024.120032}, journal-iso = {CHEM ENG SCI}, journal = {CHEMICAL ENGINEERING SCIENCE}, volume = {293}, unique-id = {34771049}, issn = {0009-2509}, year = {2024}, eissn = {1873-4405} } @article{MTMT:34771050, title = {Catalytic destruction of oxalate in the supernatant stream generated during plutonium reconversion process}, url = {https://m2.mtmt.hu/api/publication/34771050}, author = {Prasad, A. and Vijayan, K.S. and Rao, R.V.S. and Narasimhan, D. and Krishnamoorty, A.}, doi = {10.1515/ract-2023-0211}, journal-iso = {RADIOCHIM ACTA}, journal = {RADIOCHIMICA ACTA}, unique-id = {34771050}, issn = {0033-8230}, year = {2024}, eissn = {2193-3405} } @article{MTMT:34596462, title = {Improved Titrimetric Analysis of Formate/Formic Acid and Comparison with Ion Chromatography and Nuclear Magnetic Resonance Spectroscopy}, url = {https://m2.mtmt.hu/api/publication/34596462}, author = {Bashir, Shahid M. and Norhadif, Muhammad and Xia, Zhicheng and Qian, Linda and Gyenge, Elod L.}, doi = {10.1080/00032719.2023.2297411}, journal-iso = {ANAL LETT}, journal = {ANALYTICAL LETTERS}, unique-id = {34596462}, issn = {0003-2719}, abstract = {The advancements in renewable energy technologies brought about a significant interest in developing formic acid based chemical and electrochemical processes. These include the electroreduction of carbon dioxide to produce formic acid or direct electrooxidation of formic acid to generate electricity in a fuel cell. Considering the neutral to alkaline nature of electrolytes used in many of these processes, formic acid usually exists as a formate species. Unlike oxalate salt, the direct titration to quantify formate molarity using potassium permanganate (KMnO4) is difficult due to the formation of a suspended colored complex, which poses challenges in identifying the endpoint. Herein, we report two simple and efficient methods for formate and formic acid analysis, by back titration (FBT) using oxalate and iodine, respectively. These methods were shown to have an accuracy of more than 97% at a reduced cost when benchmarked against either nuclear magnetic resonance (NMR) spectroscopy or ion chromatography (IC). The effect of the analyte medium and optimization of the analytical procedure were also investigated. The formate quantification was found to vary insignificantly when different media, such as water, potassium hydroxide, potassium bicarbonate, or potassium sulfate, were used. This signifies the robustness and broader applicability of the FBT methods. Regarding the analytical steps, selecting the appropriate temperature, time, and molar ratio of participating species allowed the quantification of formate or formic acid with accuracy and precision. The analytical methods thus developed can provide alternative, cost-effective solutions for determining formate concentration for the research and development sector and for on-site analysis in industrial settings, where maintaining NMR and IC equipment may not be feasible.}, keywords = {titrimetry; Back-titration; formate analysis; formic acid analysis}, year = {2023}, eissn = {1532-236X} } @article{MTMT:33664096, title = {Use of Lactiplantibacillus plantarum CNPC 003 for the manufacture of functional skimmed fresh cheese}, url = {https://m2.mtmt.hu/api/publication/33664096}, author = {de Oliveira, C.M.S. and Grisi, C.V.B. and Silva, G.d.S. and Neto, J.H.P.L. and de Medeiros, L.L. and dos Santos, K.M.O. and Cardarelli, H.R.}, doi = {10.1016/j.idairyj.2023.105628}, journal-iso = {INT DAIRY J}, journal = {INTERNATIONAL DAIRY JOURNAL}, volume = {141}, unique-id = {33664096}, issn = {0958-6946}, year = {2023}, eissn = {1879-0143} } @article{MTMT:34578657, title = {Pathways in permanganate oxidation of mandelic acid: reactivity and selectivity of intermediate manganese species}, url = {https://m2.mtmt.hu/api/publication/34578657}, author = {Hovey, Tanden A. and Mishra, Disha and Singh, Manveer and Anaya, Grecia and Owusu, Chantele and Barvian, Nicole C. and Sorauf, Kellen J. and Patro, Mata Dambarudhar and Panigrahi, Akhil K. and Mahapatro, Surendra N.}, doi = {10.1039/d3dt02948d}, journal-iso = {DALTON T}, journal = {DALTON TRANSACTIONS}, volume = {52}, unique-id = {34578657}, issn = {1477-9226}, abstract = {We report a comprehensive kinetic and product study of the oxidation of mandelic acid (MA) by permanganate in the pH range of 1-13, including a full account of total oxidizing equivalents (five and three-electron change in acidic and basic media, respectively). In the entire pH range, the reaction shows a primary kinetic deuterium isotope effect (kH/kD >= 8-9), indicating rate-limiting hydride transfer. The deuterium label in alpha-deutero-mandelic acid is retained in benzaldehyde. Benzaldehyde (BZ) is formed in post-rate limiting steps due to reactions involving manganese intermediates. In alkaline pH (>= 13), in the presence of barium acetate, Mn(vi) is removed as insoluble blue barium manganate; the stoichiometry of the first step of reduction was found to be: MA + 2Mn(vii) -> PGA + 2Mn(vi). Manganate, MnO42-, is directly reduced to MnO2 giving an additional mole of phenylglyoxylic acid (PGA). The experimentally observed ratio of benzaldehyde to phenylglyoxylic (BZ/PGA) provides a basis for discrimination between mechanistic choices that include direct reduction of Mn(v) to Mn(iii) (in an acidic medium), disproportionation to Mn(iv) and Mn(vi) or oxidation to Mn(vi) by a second mole of permanganate. Interestingly, at pH 4, a stoichiometric, soluble Mn(iv) is observed for the first time for hydroxy-acid oxidation, reminiscent of the Guyard reaction. Because of the widespread use of permanganate as an environmentally green oxidant, results from mandelic acid oxidation have implications for the remediation of dissolved organic matter (DOM) including hydrocarbons and nitroaromatics in waste and groundwater.This study reports on the role of intermediates in permanganate oxidation of a model hydroxy-acid. It is significant in the context of wastewater treatment for contaminant abatement and water quality.}, year = {2023}, eissn = {1477-9234}, pages = {18268-18286}, orcid-numbers = {Singh, Manveer/0009-0006-9864-4059} } @article{MTMT:34596463, title = {Efficient Mn(III)-oxalate generation for diclofenac oxidation by electro-reduction of potassium permanganate in the presence of oxalate}, url = {https://m2.mtmt.hu/api/publication/34596463}, author = {Huang, Jinbing and Liu, Xiaoyan and Xie, Shiwei}, doi = {10.1016/j.jwpe.2023.104440}, journal-iso = {J WATER PROCESS ENG}, journal = {JOURNAL OF WATER PROCESSING ENGINEERING}, volume = {56}, unique-id = {34596463}, issn = {2214-7144}, abstract = {Although electrochemical activation of permanganate (E-PM) is a green and efficient method to degrade refractory organics by in-situ generated reactive Mn(III)aq, this process highlights on the presence of promoter and/ or stabilizer. Oxalate (OA) is a widespread organic chelate in natural water bodies (with concentrations up to 1 mM), but whose effect on the E-PM process is still unclear. In this study, we found electrolysis and the presence of OA both promote the activation of PM for the degradation of diclofenac (DCF), showing a high synergistic coefficient (3.23) and elevated reaction constant (0.1395 min-1). Nevertheless, this process is highly pHdependent, behaving decreased reactivity as pH value increasing from 3 to 11. Sufficient concentration of OA (>= 0.5 mM in this study) is required for stabilizing Mn(III). UV-vis spectra, visual evidence and quenching experiments identified the presence and dominant role of Mn(III)-OA on the degradation of DCF. Using chronoamperometry, we confirmed Mn(III)-OA was primarily generated from the electro-reduction of PM in the presence of OA at pH 5.}, keywords = {diclofenac; OXALATE; Potassium Permanganate; Electro-reduction; Mn(III)-OA}, year = {2023}, eissn = {2214-7144}, orcid-numbers = {Xie, Shiwei/0000-0002-2765-7796} } @article{MTMT:34259996, title = {Mechanism of Permanganate Biosorption by Fermentation Biowaste}, url = {https://m2.mtmt.hu/api/publication/34259996}, author = {Kim, Namgyu and Lee, Sang-Hoon and Yang, Hanui and Park, Donghee}, doi = {10.1155/2023/4759123}, journal-iso = {ADSORPT SCI TECHNOL}, journal = {ADSORPTION SCIENCE & TECHNOLOGY}, volume = {2023}, unique-id = {34259996}, issn = {0263-6174}, abstract = {Biosorptive treatment of industrial wastewater contaminated with heavy metals has been recognized as one of the most effective green tools, competing with traditional physical/chemical treatment processes. This study delves into the detailed investigation of the biosorbent prepared from fermentation biowaste, particularly focusing on the mechanism behind permanganate (Mn(VII)) removal. Various parameters including pH, biosorbent dosage, initial concentration, and temperature were examined. Among these factors, solution pH emerged as the most crucial in removing Mn(VII) using the biosorbent. The significant removal of Mn(VII) was attributed to both reduction and adsorption, as confirmed by X-ray photoelectron spectroscopy. Depending on the experimental conditions, the removal of Mn(VII) was influenced not only by simple adsorption but also by oxidation-reduction and precipitation processes. This study not only advances our understanding of biosorptive treatment but also highlights the promising potential of fermentation biowaste-based biosorbents for effective Mn(VII) removal.}, year = {2023}, eissn = {2048-4038} } @article{MTMT:34237329, title = {Assessment of Stoichiometric Autocatalysis across Element Groups}, url = {https://m2.mtmt.hu/api/publication/34237329}, author = {Peng, Z. and Adam, Z.R. and Fahrenbach, A.C. and Kaçar, B.}, doi = {10.1021/jacs.3c07041}, journal-iso = {J AM CHEM SOC}, journal = {JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, volume = {145}, unique-id = {34237329}, issn = {0002-7863}, year = {2023}, eissn = {1520-5126}, pages = {22483-22493} } @article{MTMT:32969212, title = {Optical, chemical, electrical, and morphological properties of PEO-Nb-doped KMnO4 thin films}, url = {https://m2.mtmt.hu/api/publication/32969212}, author = {Ahmed, Ahmad A. and Aljarrah, Ihsan A. and Telfah, Mahmoud D. and Alsaad, Ahmad M. and Telfah, Ahmad}, doi = {10.1007/s10854-022-08044-9}, journal-iso = {J MATER SCI: MATER EL}, journal = {JOURNAL OF MATERIALS SCIENCE: MATERIALS IN ELECTRONICS}, volume = {33}, unique-id = {32969212}, issn = {0957-4522}, abstract = {We report on the optical, chemical, and morphological properties of Polyethylene oxide (PEO) with Nb doped with (1%, 2%, 4%, and 8%) of potassium paramagnets (KMnO4) thin films. The as-prepared PEO-Nb-KMnO4 thin films are deposited using the casting technique on a glass substrate. The transmittance T% (i) and reflectance R% (lambda) of PEO-Nb-KMnO4 thin films are measured at room temperature in the (250-700) nm spectral range. Interestingly, increasing the doping level of KMnO4 decreases the transmittance slowly in the low-energy region and abruptly in the high-energy region. Furthermore, a redshift of the absorption edge is observed as the doping level of KMnO4 is increased, implying a significant reduction of the optical bandgap. Index of refraction n and extinction coefficient k for PEO-Nb-KMnO4 thin film are reported. Furthermore, a combination of classical models, namely, Tauc, Wemple-DiDomenico, and Sellmeier models are employed to measure and interpret the optical behavior, optical bandgaps, dispersion parameters, and optoelectronic parameters of PEO-Nb and PEO-Nb-doped KMnO4 thin films. The optical bandgap of PEO-Nb is found to be 4.00 eV. Incorporating 8% of KMnO4 into PEO-Nb matrix reduces the optical bandgap to 3.72 eV. To identify the major vibrational modes of the un-doped and doped thin films, Fourier transform infrared spectroscopy (FTIR) analysis is conducted. The major peak at 541 cm(-1) of PEO-Nb is associated with the Nb-3-O bond. Introducing KMnO(4)( )into PEO-Nb matrix leads to remarkable changes of the width, intensity, and the peak positions of the vibrational bands. Electrical properties of the investigated thin films are investigated and elucidated using the four-point probe. The measured conductivity of un-doped PEO-Nb is about1.82 x 10(-5)S/cm. Introduction different dopant levels of KMnO4 boosts the conductivity to 8.00 x 10(-5)S/cm at the highest concentration of KMnO4 (8%). The obtained Scanning Electron Microscopy (SEM) micrographs indicate that the amorphous PEO-Nb thin films exhibit a smooth surface. Inserting different concentrations of KMnO4 yields new aggregations on the constructed surfaces confirming the homogenous distribution of KMnO4 into PEO-Nb matrix. The drastic modifications of optical, chemical, and surface properties of PEO-Nb thin films caused by introducing KMnO4 imply that PEO-Nb-KMnO4 thin films indicate their potential for several optoelectronic applications.}, year = {2022}, eissn = {1573-482X}, pages = {10585-10595} } @article{MTMT:34771051, title = {Optimization and Validation of Ultraviolet-Visible Spectrophotometric Method for Determination of Potassium Permanganate Consumption for Migrants from Food Contact Rubber}, url = {https://m2.mtmt.hu/api/publication/34771051}, author = {Zeng, S. and Guo, P. and Zhang, K. and Hu, C. and Liu, Y. and Wang, Z.}, doi = {10.7506/spkx1002-6630-20220114-133}, journal-iso = {SHIPIN KEXUE / FOOD SCI}, journal = {SHIPIN KEXUE / FOOD SCIENCE}, volume = {43}, unique-id = {34771051}, issn = {1002-6630}, year = {2022}, pages = {334-340} } @article{MTMT:32377946, title = {Effect of I-phase morphology and microstructure transformation in biomedical Mg-3Zn-1Mn-1Y alloys on vitro degradation behavior in dynamic simulated body fluid}, url = {https://m2.mtmt.hu/api/publication/32377946}, author = {Cao, Xin and Xu, Chunxiang and Zhang, Zhengwei and Yang, Wenfu and Zhang, Jinshan}, doi = {10.1007/s10853-021-06091-x}, journal-iso = {J MATER SCI}, journal = {JOURNAL OF MATERIALS SCIENCE}, volume = {56}, unique-id = {32377946}, issn = {0022-2461}, abstract = {The corrosion mechanism of as-cast, heat-treated (H400) and extruded (E30, E60, E90) Mg-3Zn-1Mn-1Y alloys with different microstructure is investigated by scan electron microscope (SEM), scan Kelvin probe force microscope (SKPFM), X-ray photoelectron spectroscopy (XPS), electrochemical impedance analysis and immersion experiments equipped with a dynamic corrosion device. The relevant results are as follows: continuously strip-like I-phase (Mg3Zn6Y) in as-cast alloy distributed along the grain boundary played a significant obstacle impact during corrosion, whereas this capability is weakened after heat treatment and large plastic extrusion deformation. However, extrusion deformation significantly improved alloy corrosion performance, the extruded E30 alloy performed superior anti-corrosion behavior among the three extruded alloys owing to the smaller potential difference between I-phase (2.59 V) and DRXed (2.51 V) or un-DRXed (2.54 V) grains. In addition, the corrosion obstacle effect of grains boundaries (the grain boundary has higher potential than the Mg substrate), dense corrosion products film protection (isolate the substrate from contact with SBF) and typical basal texture (lower reactivity of base atoms) have great influence on corrosion behavior.}, year = {2021}, eissn = {1573-4803}, pages = {12394-12411} } @article{MTMT:32829984, title = {Autocatalysis: Kinetics, Mechanisms and Design}, url = {https://m2.mtmt.hu/api/publication/32829984}, author = {Hanopolskyi, Anton I and Smaliak, Viktoryia A. and Novichkov, Alexander I and Semenov, Sergey N.}, doi = {10.1002/syst.202000026}, journal-iso = {CHEMSYSTEMSCHEM}, journal = {CHEMSYSTEMSCHEM}, volume = {3}, unique-id = {32829984}, abstract = {The importance of autocatalysis spans from practical applications such as in chemically amplified photoresists, to autocatalysis playing a fundamental role in evolution as well as a plausible key role in the origin of life. The phenomenon of autocatalysis is characterized by its kinetic signature rather than by its mechanistic aspects. The molecules that form autocatalytic systems and the mechanisms underlying autocatalytic reactions are very diverse. This chemical diversity, combined with the strong involvement of chemical kinetics, creates a formidable barrier for entrance to the field. Understanding these challenges, we wrote this Review with three main goals in mind: (i) To provide a basic introduction to the kinetics of autocatalytic systems and its relation to the role of autocatalysis in evolution, (ii) To provide a comprehensive overview, including tables, of synthetic chemical autocatalytic systems, and (iii) To provide an in-depth analysis of the concept of autocatalytic reaction networks, their design, and perspectives for their development.}, keywords = {KINETICS; Chemical reaction networks; autocatalysis; asymmetric autocatalysis; EXPONENTIAL-GROWTH; origin of life; Signal amplification; POTASSIUM-PERMANGANATE; NATURAL SELF-ORGANIZATION; DIISOPROPYLAMIDE-MEDIATED ORTHOLITHIATION; ACID AMPLIFIERS; PERMANGANATE OXIDATION; REPLICATING SYSTEM}, year = {2021}, eissn = {2570-4206}, orcid-numbers = {Semenov, Sergey N./0000-0002-5829-2283} } @misc{MTMT:32478460, title = {Defining Autocatalysis in Chemical Reaction Networks}, url = {https://m2.mtmt.hu/api/publication/32478460}, author = {Jakob, L. Andersen and Christoph, Flamm and Daniel, Merkle and Peter, F. Stadler}, unique-id = {32478460}, abstract = {Autocatalysis is a deceptively simple concept, referring to the situation that a chemical species X catalyzes its own formation. From the perspective of chemical kinetics, autocatalysts show a regime of super-linear growth. Given a chemical reaction network, however, it is not at all straightforward to identify species that are autocatalytic in the sense that there is a sub-network that takes X as input and produces more than one copy of X as output. The difficulty arises from the need to distinguish autocatalysis e.g. from the superposition of a cycle that consumes and produces equal amounts of X and a pathway that produces X. To deal with this issue, a number of competing notions, such as exclusive autocatalysis and autocatalytic cycles, have been introduced. A closer inspection of concepts and their usage by different authors shows, however, that subtle differences in the definitions often makes conceptually matching ideas difficult to bring together formally. In this contribution we make some of the available approaches comparable by translating them into a common formal framework that uses integer hyperflows as a basis to study autocatalysis in large chemical reaction networks. As an application we investigate the prevalence of autocatalysis in metabolic networks.}, year = {2021} } @article{MTMT:32377944, title = {Potassium permanganate oxidation as a carboxylation and defibrillation method for extracting cellulose nanofibrils to fabricate films with high transmittance and haze}, url = {https://m2.mtmt.hu/api/publication/32377944}, author = {Liu, Yali and Zhang, Sufeng and Lin, Rui and Li, Lei and Li, Min and Du, Min and Tang, Ruihua}, doi = {10.1039/d1gc02657g}, journal-iso = {GREEN CHEM}, journal = {GREEN CHEMISTRY}, volume = {23}, unique-id = {32377944}, issn = {1463-9262}, abstract = {Cellulose-based films have attracted significant attention in the fields of flexible photoelectric products and energy equipment by virtue of their abundant sources, biodegradability, renewability, sustainability, and optical properties, of which high transmittance and high haze are important parameters. In this study, we proposed a green and efficient defibrillation and carboxylation method of KMnO4 synergized with slight homogenization to produce fine carboxylated cellulose nanofibrils (COOH-CNFs) with a high yield of 96%. The oxidation reaction was carried out under mild conditions (50 degrees C, 2 h). The as-prepared COOH-CNFs well-retained the crystalline structure of the pulp with coexisting crystalline and amorphous regions. This structure gave the COOH-CNF film unique optical properties, including a transmittance above 80% at a wavelength of 550 nm, a haze reaching 97.45%, and no obvious absorption in the ultraviolet-visible range. The resulting COOH-CNFs were characterized in terms of fibrillation yield, morphological features, crystal structure, surface chemistry, and mechanical behavior. This CNF preparation approach is advantageous over traditional methods owing to a reduced reactant dosage and enhanced efficiency, which represents a potential green route in industry and makes it a promising candidate for fabricating films for flexible lighting, energy, and sensing devices.}, year = {2021}, eissn = {1463-9270}, pages = {8069-8078} } @article{MTMT:31359409, title = {Effect of cerium ion on the microstructure and properties of permanganate conversion coating on LZ91 magnesium alloy}, url = {https://m2.mtmt.hu/api/publication/31359409}, author = {Jian, Shun-Yi and Chang, Ko-Lun}, doi = {10.1016/j.apsusc.2019.144767}, journal-iso = {APPL SURF SCI}, journal = {APPLIED SURFACE SCIENCE}, volume = {509}, unique-id = {31359409}, issn = {0169-4332}, year = {2020}, eissn = {1873-5584} } @article{MTMT:31614066, title = {The study of corrosion behavior of manganese-based conversion coating on LZ91 magnesium alloy: Effect of addition of pyrophosphate and cerium}, url = {https://m2.mtmt.hu/api/publication/31614066}, author = {Jian, S.-Y. and Tzeng, Y.-C. and Ger, M.-D. and Chang, K.-L. and Shi, G.-N. and Huang, W.-H. and Chen, C.-Y. and Wu, C.-C.}, doi = {10.1016/j.matdes.2020.108707}, journal-iso = {MATER DESIGN}, journal = {MATERIALS AND DESIGN}, volume = {192}, unique-id = {31614066}, issn = {0264-1275}, abstract = {A previous study by the authors reported that a Mn[sbnd]Ce based conversion coating protects the surface of LZ91 magnesium alloy from corrosion. However, the acidic permanganate solution decomposes after several days of storage and this significantly affects the properties of the coating. To address this problem, this study presents a method to stabilize the acidic permanganate bath by adding pyrophosphate into the bath. The results show that all conversion coatings are amorphous and comprise two layers: a porous layer that contacts the substrate and a compact overlay. Coatings that are produced using a bath with Ce are more resistant to corrosion than those that are produced in a bath without Ce ions. Coatings that are stored in the Mn[sbnd]Ce bath for 2 weeks are significantly less resistant to corrosion than coatings that are produced using an as-prepared Mn[sbnd]Ce bath. The salt spray test results of coatings that are produced using the as-prepared bath and stored for 2 weeks are found similar because the bath is rendered more stable by the addition of pyrophosphate. © 2020 The Authors}, keywords = {microstructure; Manganese; MAGNESIUM ALLOY; magnesium alloys; cerium; Corrosion resistance; Corrosion resistance; EIS; CORROSION BEHAVIOR; Corrosion resistant coatings; Salt spray test; Salt spray test; Corrosive effects; conversion coatings; Chemical conversion coating; Acidic permanganate solutions; Effect of addition; Porous layers}, year = {2020}, eissn = {1873-4197} } @article{MTMT:31070737, title = {A novel optical limiter and UV-Visible filters made of Poly (vinyl alcohol)/KMnO4 polymeric films on glass-based substrate}, url = {https://m2.mtmt.hu/api/publication/31070737}, author = {Ali, H. Elhosiny}, doi = {10.1007/s10854-019-01021-9}, journal-iso = {J MATER SCI: MATER EL}, journal = {JOURNAL OF MATERIALS SCIENCE: MATERIALS IN ELECTRONICS}, volume = {30}, unique-id = {31070737}, issn = {0957-4522}, abstract = {A poly (vinyl alcohol) polymeric films doped with various stages of concentrations (0, 0.037, 0.185, 0.37, 1.85 and 3.7 wt%) of KMnO4 salt were prepared by casting technique on glass substrate as a new optical limiting and laser filter application. Their structures, molecular complex formation and the morphology of the surface are analyzed by using XRD (X-ray diffraction), FTIR (Fourier transform-IR), and SEM (scanning electron microscopy), while the optical band gap as well as limiting characteristics is determined via UV-Vis spectroscopy, and optical limiting set-up for two laser sources, respectively. As a result of the increment of KMnO4 salt percentage inside the PVA polymer matrix, there is a significant decrease in the number of chain domains with a specific alignment (crystallizing degree) is observed through XRD diffraction and confirmed via Gaussian fitting and Fityk 0.9.8 software. FTIR spectra shows the complex interface interaction between KMnO4 and PVA. The numerical density as well as the size of the particles was increased as clearly seen in SEM images. In addition, the energy gap is markedly decreased from 3.6 eV to 1.1 eV for Pure PVA and 3.7 wt% of KMnO4 doped PVA (KMPVA5), respectively, on the glass substrate sample. The incident light was completely blocked in the UV range and extended to 555 nm in the visible region for the highest doping of KMnO4 in PVA. Moreover, a sharp decrease in the output and normalized power of the two laser sources via KMPVA5 film were detected. Therefore, for low cost optical limiting and laser filter technology, the PVA with the high concentration level of KMnO4 is considered as a promising candidate.}, year = {2019}, eissn = {1573-482X}, pages = {7043-7053} } @article{MTMT:31070735, title = {Microstructure and optical properties of Ni2+ doped PVA for optoelectronic devices}, url = {https://m2.mtmt.hu/api/publication/31070735}, author = {Ali, H. Elhosiny and Khairy, Yasmin}, doi = {10.1016/j.physb.2019.05.050}, journal-iso = {PHYSICA B}, journal = {PHYSICA B-CONDENSED MATTER}, volume = {570}, unique-id = {31070735}, issn = {0921-4526}, abstract = {Different wt.% of Ni2+-doped Poly (vinyl alcohol), PVA, films are synthesized by a low-cost casting method. XRD, SEM and FTIR spectroscopy are used to study the microstructure of the composite samples. The degree of semi-crystallinity for all Ni2+-doped PVA (NPVA) and pure PVA films decreases and the amorphous order dominated in 3.7 wt% Ni2+-doped PVA (NPVA5) film as established by studying the spectroscopy of XRD and FT-IR. The increment of the Ni2+-doping level in PVA led to a formation of non-homogeneous particle size with an average value range from 1.03 mu m to 4.47 mu m for 0.027 wt% Ni2+-doped PVA (NPVA1), and NPVA5 films, respectively. UV-Vis-IR transmittance and absorption spectroscopies are specified for measuring the optical parameters. The indirect energy gap (E-ig) decreases to 4.85 eV for NPVA5 film, and the direct energy gap, Eg, to 1.36 eV for the same sample. However, owing to the complex construction between Ni2+-ions and the matrix of PVA, the transition strength (E-d), the indices of refraction (n, n(infinity)), and oscillator wavelength (lambda(0)) increase, while the excitation energy (E-s) decreases with further wt.% of Ni2+-ions. Due to the optical properties of the films, they are suitable to be inserted in different optoelectronic applications.}, keywords = {Optical properties; Energy gap; Dielectric constant; Ni2+ conductive ions doped PVA}, year = {2019}, eissn = {1873-2135}, pages = {41-47} } @article{MTMT:31070734, title = {Optical and electrical performance of copper chloride doped polyvinyl alcohol for optical limiter and polymeric varistor devices}, url = {https://m2.mtmt.hu/api/publication/31070734}, author = {Ali, H. Elhosiny and Khairy, Yasmin}, doi = {10.1016/j.physb.2019.08.014}, journal-iso = {PHYSICA B}, journal = {PHYSICA B-CONDENSED MATTER}, volume = {572}, unique-id = {31070734}, issn = {0921-4526}, abstract = {PVA composite films with different wt.% of CuCl2, by the cast method, were prepared. The semi-crystalline phases of PVA have been reduced by more addition of CuCl2 as confirmed with the help of X-ray diffraction, and Fourier transforms infrared spectroscopy. The thermal stability is surveyed by differential thermal analysis. The morphology of CuCl2 particles is studied by scanning electron microscopy, which shows the semi-spherical particles of size varied from (0.31-1.19) mu m to (3.1-5) mu m for 0.037 wt% CuCl2/PVA and 3.700 wt% CuCl2/PVA (CPVA5) films, respectively. With the increment of the additive, the absorptive property of the films is increased. The indirect and direct energy gap were estimated. The power with 632.8 nm and 533 nm of the laser sources has been reduced to 40% and 47% via CPVA5 films. The AC electrical conductivity follows the Jonscher's power law. The forward lnI (A) - lnV (V) behaviors show that the doped films have high voltage breakdown.}, keywords = {DTA; Copper chloride doped PVA; XRD/FTIR; EDX/SEM; Optical and electrical characteristics}, year = {2019}, eissn = {1873-2135}, pages = {256-265} } @article{MTMT:30895932, title = {Mechanical properties of anhydrous oxalic acid and oxalic acid dihydrate}, url = {https://m2.mtmt.hu/api/publication/30895932}, author = {Colmenero, Francisco}, doi = {10.1039/c8cp07188h}, journal-iso = {PHYS CHEM CHEM PHYS}, journal = {PHYSICAL CHEMISTRY CHEMICAL PHYSICS}, volume = {21}, unique-id = {30895932}, issn = {1463-9076}, abstract = {The mechanical properties of oxalic acid dihydrate and anhydrous oxalic acid ( and polymorphic forms) were obtained by using rigorous theoretical solid-state methods based on density functional theory using plane waves and pseudopotentials. The calculated crystal structures and X-ray powder diffraction patterns of these materials were found to be in excellent agreement with the experimental information. Since the calculated elasticity matrices fullfilled the Born stability conditions, the corresponding crystal structures were found to be mechanically stable. A large number of relevant mechanical properties including the values of the bulk moduli and their pressure derivatives, shear and Young moduli, Poisson ratios, ductility and hardness indices, and mechanical anisotropy values of these materials were reported. The three forms of oxalic acid are highly anisotropic ductile materials having low hardness and bulk moduli. The three materials are shown to display small negative Poisson ratios (NPR) and to exhibit the phenomenon of negative linear compressibility (NLC) for applied pressures along the direction of the minimum Poisson ratio. In addition, they undergo pressure induced phase transitions for relatively small applied pressures. The analysis of the crystal structures of these materials as a function of pressure demonstrates that the mechanism of NLC of these materials is unrelated to the wine-rack structural mechanism commonly used to rationalize this phenomenon. The three forms of oxalic acid considered in this work are molecular crystals whose structures are characterized by structural elements which are not directly bonded but held together by weak van der Waals forces. The weak bonding between these elements is able to accommodate the structural variations originating from the application of pressure, but the resulting structural deformations appear to be counterintuitive and lead to the anomalous mechanical behavior of these materials.}, year = {2019}, eissn = {1463-9084}, pages = {2673-2690} } @article{MTMT:31070738, title = {Kinetics and mechanism of the redox reaction of N,N-phenylenebis-(salicylideneiminato)iron(III) with oxalic acid in mixed aqueous medium}, url = {https://m2.mtmt.hu/api/publication/31070738}, author = {Ibrahim, I. and Idris, S. O. and Abdulkadir, I. and Onu, A. D.}, doi = {10.1007/s11243-018-0291-8}, journal-iso = {TRANSIT METAL CHEM}, journal = {TRANSITION METAL CHEMISTRY}, volume = {44}, unique-id = {31070738}, issn = {0340-4285}, abstract = {The kinetics of electron transfer between N,N-phenylenebis-(salicylideneiminato)iron(III), hereafter referred to as [Fe(Salphen)](+), and oxalic acid was studied in mixed aqueous medium (DMSO:H2O; 1:4 v/v) under pseudo-first-order conditions at 26 +/- 1 degrees C, I=0.2coulomb(2)moldm(-3) (NaCl) and (max)=435nm. The reaction was found to be second order overall and acid independent, and displayed zero BrOnsted-Debye salt effect. There was no evidence for the formation of an intermediate complex or free radicals during the reaction. Overall, the kinetic data suggest an inner-sphere mechanism for the reaction, which is first order in both reactants. A plausible reaction mechanism is proposed.}, year = {2019}, eissn = {1572-901X}, pages = {269-273} } @article{MTMT:32478477, title = {Biosorption Studies of Cr(VI) Ion from Aqueous Solution using Unmodified and Oxalic Acid Modified African Yam Bean Pod and Groundnut Shell}, url = {https://m2.mtmt.hu/api/publication/32478477}, author = {N. Ekeh, Humphrey and Odoemelam, Stevens A. and U. Sonde, Christopher}, doi = {10.9734/irjpac/2019/v18i330091}, journal-iso = {INT RES J PURE APPL CHEM}, journal = {INTERNATIONAL RESEARCH JOURNAL OF PURE AND APPLIED CHEMISTRY}, volume = {2019}, unique-id = {32478477}, issn = {2231-3443}, year = {2019}, pages = {1-14} } @article{MTMT:31070736, title = {Acidic permanganate oxidation of sulfamethoxazole by stepwise electron-proton transfer}, url = {https://m2.mtmt.hu/api/publication/31070736}, author = {Song, Dean and Jefferson, William A. and Cheng, Hanyang and Jiang, Xiaohua and Qiang, Zhimin and He, Hong and Liu, Huijuan and Qu, Jiuhui}, doi = {10.1016/j.chemosphere.2019.01.113}, journal-iso = {CHEMOSPHERE}, journal = {CHEMOSPHERE}, volume = {222}, unique-id = {31070736}, issn = {0045-6535}, abstract = {Permanganate is a versatile chemical oxidant, and has undergone a dramatic evolution toward deep insight into its reaction mechanism. However, the hydrogen abstraction of the N-H bond by permanganate remains unclear. We studied the permanganate oxidation of the emerging micropollutant sulfamethoxazole in acidic aqueous solution. The reaction followed autocatalytic kinetics and demonstrated first-order with respect to each reactant. The presence of HMnO4 accelerated the reaction rate, which was four orders of magnitude higher than that of MnO4-. Based on the identified products, the rate-limiting step was determined to be simple N-H bond oxidation by metal-oxo species permanganate. The mechanism was then studied computationally by density functional theory (DFT) using ammonia as the simplest model. Results showed that the N-H bond oxidation by MnO4- (32.86 kcal/mol) was a concerted mechanism similar to that of C-H bond oxidation, whereas HMnO4 oxidation of the N-H bond (10.44 kcal/mol) was a stepwise electron-proton transfer. This reminds us that coordination of Bronsted acid could not only produce the stronger electrophile but also change the reaction mode by avoiding the bond cleavage in electron transfer process. (C) 2019 Elsevier Ltd. All rights reserved.}, keywords = {sulfamethoxazole; permanganate; Bronsted acid catalysis; N-H bond oxidation; Stepwise electron-proton transfer}, year = {2019}, eissn = {1879-1298}, pages = {71-82}, orcid-numbers = {Song, Dean/0000-0003-1951-0839; Jiang, Xiaohua/0000-0003-0061-3088} } @article{MTMT:30526513, title = {One-Pot Preparation of Carboxylated Cellulose Nanocrystals and Their Liquid Crystalline Behaviors}, url = {https://m2.mtmt.hu/api/publication/30526513}, author = {Zhou, Lijuan and Li, Na and Shu, Jie and Liu, Yunxiao and Wang, Kuntao and Cui, Xiang and Yuan, Yuan and Ding, BeiBei and Geng, Yong and Wang, Zhaolu and Duan, Yongxin and Zhang, Jianming}, doi = {10.1021/acssuschemeng.8b02926}, journal-iso = {ACS SUSTAIN CHEM ENG}, journal = {ACS SUSTAINABLE CHEMISTRY & ENGINEERING}, volume = {6}, unique-id = {30526513}, issn = {2168-0485}, abstract = {Carboxylated cellulose nanocrystals (CNCs-COOH) have attracted great attention for their potential applications in reinforcing polymer materials and surface modification. Herein, we developed a low-cost approach to prepare CNCs-COOH from pulp with high yield at mild reaction conditions (50 degrees C, 1 wt % sulfuric acid medium) using potassium permanganate (KMnO4) and oxalic acid (OA, H2C2O4) as the oxidizing and reducing agents, respectively. The oxidant dosage in this strategy is much lower than that in a conventional TEMPO method, and the yield of CNCs-COOH can reach as high as 68.0%, with a carboxylate content of 1.58 mmol/g. In this reaction system, the presence of the OA can complex with Mn3+ to form [Mn(C2O42-)](+) and prevent the Mn3+ from being reduced to Mn2+, leading to the strong oxidizing capacity of the reaction system maintained for a longer time. Atomic force microscopy analysis showed that rod-like CNCs were obtained with an average size of 10-22 nm in diameter and 150-300 nm in length. The crystal structure of as-prepared CNCs-COOH was nearly unchanged, and the crystallinity was 89.2% based on WAXD analysis. Of particular interest, CNCs-COOH suspension with high concentration (>6 wt %) also exhibited the same intriguing chiral nematic liquid crystalline self-assembly behaviors as sulfate CNCs prepared by traditional H2SO4 hydrolysis method. This study provides an efficient and cost-effective way to fabricate CNCs-COOH, leading to great potential applications in constructing advanced functional material.}, keywords = {Cellulose nanocrystals; chiral nematic; Potassium permanganate/oxalic acid redox system; Surface carboxyl groups}, year = {2018}, eissn = {2168-0485}, pages = {12403-12410}, orcid-numbers = {Zhang, Jianming/0000-0002-0252-4516} } @article{MTMT:26368882, title = {Effect of supplementation with probiotic lactic acid bacteria, separately or combined, on acid and sugar production in goat 'coalho' cheese}, url = {https://m2.mtmt.hu/api/publication/26368882}, author = {Alves, Bezerra Taliana Kenia and de Oliveira, Arcanjo Narciza Maria and Garcia, Estefania Fernandes and Pereira, Gomes Ana Maria and Ramos, do Egypto Queiroga Rita de Cassia and de Souza, Evandro Leite and Madruga, Marta Suely}, doi = {10.1016/j.lwt.2016.10.023}, journal-iso = {LWT-FOOD SCI TECHNOL}, journal = {LWT-FOOD SCIENCE AND TECHNOLOGY}, volume = {75}, unique-id = {26368882}, issn = {0023-6438}, year = {2017}, eissn = {1096-1127}, pages = {710-718} } @article{MTMT:27062303, title = {A 3-step chemiluminescence method for chemical oxygen demand measurement with dichromate oxidizing reagent}, url = {https://m2.mtmt.hu/api/publication/27062303}, author = {Hue, Do Thi Kim and Shiba, Takumi and Maeda, Yasuaki and Takenaka, Norimichi}, doi = {10.1039/c7ay01652b}, journal-iso = {ANAL METHOD}, journal = {ANALYTICAL METHODS: ADVANCING METHODS AND APPLICATIONS}, volume = {9}, unique-id = {27062303}, issn = {1759-9660}, year = {2017}, eissn = {1759-9679}, pages = {5797-5805} } @article{MTMT:26729778, title = {Oxidative transformation of artificial sweetener acesulfame by permanganate: Reaction kinetics, transformation products and pathways, and ecotoxicity}, url = {https://m2.mtmt.hu/api/publication/26729778}, author = {Yin, Kai and Li, Fei and Wang, Ying and He, Qunying and Deng, Yongxiu and Chen, Shuo and Liu, Chengbin}, doi = {10.1016/j.jhazmat.2017.02.012}, journal-iso = {J HAZARD MATER}, journal = {JOURNAL OF HAZARDOUS MATERIALS}, volume = {330}, unique-id = {26729778}, issn = {0304-3894}, year = {2017}, eissn = {1873-3336}, pages = {52-60} } @article{MTMT:32478468, title = {The Decomposition of Tris-(Oxalato)-Manganate (III) Complex Ion as the Reaction Suitable for the Laboratory Practice on Chemical Kinetics}, url = {https://m2.mtmt.hu/api/publication/32478468}, author = {Pavel, Anatolyevich Nikolaychuk and Mariya, Mikhaylovna Vayner}, journal = {International Journal of Thermodynamics and Chemical Kinetics}, volume = {1}, unique-id = {32478468}, year = {2016}, pages = {50-59} } @article{MTMT:25683557, title = {Permanganate conversion coating on AZ31 magnesium alloys with enhanced corrosion resistance}, url = {https://m2.mtmt.hu/api/publication/25683557}, author = {Jian, Shun-Yi and Chu, Yu-Ren and Lin, Chao-Sung}, doi = {10.1016/j.corsci.2015.01.040}, journal-iso = {CORROS SCI}, journal = {CORROSION SCIENCE}, volume = {93}, unique-id = {25683557}, issn = {0010-938X}, year = {2015}, eissn = {1879-0496}, pages = {301-309} } @article{MTMT:25683556, title = {A kinetic study of the enhancement of solution chemiluminescence of glyoxylic acid oxidation by manganese species}, url = {https://m2.mtmt.hu/api/publication/25683556}, author = {Otamonga, Jean-Paul and Abdel-Mageed, Amal and Agater, Irena B and Jewsbury, Roger A}, doi = {10.1002/bio.2768}, journal-iso = {LUMINESCENCE}, journal = {LUMINESCENCE}, volume = {30}, unique-id = {25683556}, issn = {1522-7235}, year = {2015}, eissn = {1522-7243}, pages = {507-511} } @article{MTMT:31614067, title = {The potential of metal oxalates as novel flame retardants and synergists for engineering polymers}, url = {https://m2.mtmt.hu/api/publication/31614067}, author = {Holdsworth, A.F. and Horrocks, A.R. and Kandola, B.K. and Price, D.}, doi = {10.1016/j.polymdegradstab.2014.09.007}, journal-iso = {POLYM DEGRAD STABIL}, journal = {POLYMER DEGRADATION AND STABILITY}, volume = {110}, unique-id = {31614067}, issn = {0141-3910}, abstract = {Based on their known decomposition to carbon dioxide, carbon monoxide and the respective oxide, six metal (calcium, manganese (II), iron (II), copper (II), tin (II) and zinc) were synthesised and assessed for their potential flame retardant activity in the absence and presence of selected flame retardants. Initially they were assessed when impregnated on cotton as a screening process and then selectively compounded with polyamide 6.6 (PA66), as a typical engineering polymer. Only manganese (II) and iron (II) oxalates alone reduced the burning rate of cotton, whereas together with ammonium bromide, calcium and iron (II) oxalates showed an apparent additional burning rate reducing effect. Derived synergistic effectivity (Es) values fall within the limits 0 < Es < 1 indicating a less than additive interaction. TGA/DTA analysis of oxalate/PA66 blends suggested that only zinc oxalate (ZnOx) offers both possible flame retardant activity in terms of enhanced residue formation ≥500°C, coupled with acceptable stability in molten PA66. When compounded with PA66, in the presence and absence of either aluminium diethyl phosphinate (AlPi)-based or selected polymeric bromine-containing flame retardants, LOI values increased in most PA66/ZnOx/flame retardant blends but UL94 test ratings were disappointingly low and more likely than not, "fails". PA66/ZnOx blends with AlPi and AlPi/MPP gave poor plaques suggesting that thermal interactions were occurring during compounding. The bromine-containing blends had better processability and both TGA and cone calorimetric studies showed that the PA66/poly(pentabromobenzyl acrylate)/ZnOx sample not only yielded the highest residues in air and nitrogen at 500 and 580°C, but also the lowest peak heat release rate value of 398 compared with 1276 kW/m2 for pure PA66. The derived Es value for this blend is 1.17 suggesting a small level of synergy between the zinc oxalate and poly(pentabromobenzyl acrylate) flame retardant. The possible role of zinc bromide is discussed. © 2014 Elsevier Ltd. All rights reserved.}, keywords = {PHOSPHORUS; PHOSPHORUS; BROMINE; BROMINE; cotton; cotton; Synergism; Synergism; Metal oxalates; Metal oxalates; Polyamide 6.6; Polyamide 6.6; Engineering polymers}, year = {2014}, eissn = {1873-2321}, pages = {290-297} } @article{MTMT:25683558, title = {Ethanol as an alternative to formaldehyde for the enhancement of manganese(IV) chemiluminescence detection}, url = {https://m2.mtmt.hu/api/publication/25683558}, author = {Smith, Zoe M and Terry, Jessica M and Barnett, Neil W and Francis, Paul S}, doi = {10.1016/j.talanta.2014.07.002}, journal-iso = {TALANTA}, journal = {TALANTA}, volume = {130}, unique-id = {25683558}, issn = {0039-9140}, year = {2014}, eissn = {1873-3573}, pages = {221-225} } @article{MTMT:25683560, title = {An insight into the sequential order in 2D correlation spectroscopy using polymer transitions: Boltzmann Sigmoid, Gaussian Cumulative, Lorentz Cumulative, and Asymmetric Sigmoid. Findings in experiments and simulations}, url = {https://m2.mtmt.hu/api/publication/25683560}, author = {Zhou, Tao and Peng, Leilei and Liu, Yongcheng and Zhan, Yanhui and Liu, Feiwei and Zhang, Aiming}, doi = {10.1016/j.vibspec.2013.12.001}, journal-iso = {VIB SPECTROSC}, journal = {VIBRATIONAL SPECTROSCOPY}, volume = {70}, unique-id = {25683560}, issn = {0924-2031}, year = {2014}, eissn = {1873-3697}, pages = {137-161} } @article{MTMT:25683559, title = {Transitions of monodisperse aPS studied by model-based 2D correlation infrared spectroscopy incorporating S-shaped function}, url = {https://m2.mtmt.hu/api/publication/25683559}, author = {Zhou, Tao and Peng, Leilei and Liu, Yongcheng and Zhang, Aiming and Huang, Yong}, doi = {10.1016/j.molstruc.2013.11.031}, journal-iso = {J MOL STRUCT}, journal = {JOURNAL OF MOLECULAR STRUCTURE}, volume = {1059}, unique-id = {25683559}, issn = {0022-2860}, year = {2014}, eissn = {1872-8014}, pages = {8-14} } @article{MTMT:32478473, title = {OXIDATION OF N HYDROXYPHTALIMIDE BY POTASSIUM PERMANGANATE IN NEUTRAL MEDIUM}, url = {https://m2.mtmt.hu/api/publication/32478473}, author = {Опейда, Л.И. and Матвиенко, А.Г. and Симонов, М.А.}, journal-iso = {NAUKOVI PRACI DONECKOGO NACIONALNOGO TEHNICNOGO UNIVERSITETU. SERIA HIMIA I HIMICNA TEHNOLOGIA}, journal = {NAUKOVI PRACI DONECKOGO NACIONALNOGO TEHNICNOGO UNIVERSITETU. SERIA HIMIA I HIMICNA TEHNOLOGIA}, volume = {2}, unique-id = {32478473}, issn = {2074-6652}, year = {2014}, pages = {104-110} } @article{MTMT:25683562, title = {Autocatalytic Chemiluminescence Sheds New Light on the Classic Permanganate-Oxalate Reaction}, url = {https://m2.mtmt.hu/api/publication/25683562}, author = {Hindson, Christopher M and Smith, Zoe M and Barnett, Neil W and Hanson, Graeme R and Lim, Kieran F and Francis, Paul S}, doi = {10.1021/jp312603m}, journal-iso = {J PHYS CHEM A}, journal = {JOURNAL OF PHYSICAL CHEMISTRY A}, volume = {117}, unique-id = {25683562}, issn = {1089-5639}, year = {2013}, eissn = {1520-5215}, pages = {3918-3924} } @article{MTMT:25683561, title = {Kinetic characterization of Brocadia spp.-dominated anammox cultures}, url = {https://m2.mtmt.hu/api/publication/25683561}, author = {Puyol, D and Carvajal-Arroyo, J M and Garcia, B and Sierra-Alvarez, R and Field, J A}, doi = {10.1016/j.biortech.2013.04.001}, journal-iso = {BIORESOUR TECHNOL}, journal = {BIORESOURCE TECHNOLOGY}, volume = {139}, unique-id = {25683561}, issn = {0960-8524}, year = {2013}, eissn = {1873-2976}, pages = {94-100} } @article{MTMT:32478463, title = {Kinetics and Mechanism of the Permanganate-Induced Autocatalytic Dehydration Reaction of L-Y-Amino-N-Butyric Acid to Give 2-Pyrrolidone through a Radical Intermediate in Moderately Concentrated Acidic Medium}, url = {https://m2.mtmt.hu/api/publication/32478463}, author = {Bahrami, Homayoon and Bigdeli, Moghadas and Davari, Mehdi D. and Zahedi, Mansour and Moosavi-Movahedi, Ali A.}, doi = {10.3184/146867810X12925913885141}, journal-iso = {PROG REACT KINET MEC}, journal = {PROGRESS IN REACTION KINETICS AND MECHANISM}, volume = {36}, unique-id = {32478463}, issn = {1468-6783}, year = {2011}, eissn = {1471-406X}, pages = {120-138} } @article{MTMT:22000605, title = {Decolorization of reactive dye using a photo-ferrioxalate system with brick grain-supported iron oxide}, url = {https://m2.mtmt.hu/api/publication/22000605}, author = {Cheng, HP and Huang, YH and Lee, C}, doi = {10.1016/j.jhazmat.2011.01.131}, journal-iso = {J HAZARD MATER}, journal = {JOURNAL OF HAZARDOUS MATERIALS}, volume = {188}, unique-id = {22000605}, issn = {0304-3894}, year = {2011}, eissn = {1873-3336}, pages = {357-362} } @article{MTMT:22000601, title = {Kinetics and mechanism of the KMnO(4)-oxidative catalysed condensation reaction of L-proline to a diketopiperazine: evidence for delayed autocatalytic behaviour}, url = {https://m2.mtmt.hu/api/publication/22000601}, author = {Davari, MD and Bahrami, H and Zahedi, M and Jadidi, K}, doi = {10.3184/146867810X12894108189486}, journal-iso = {PROG REACT KINET MEC}, journal = {PROGRESS IN REACTION KINETICS AND MECHANISM}, volume = {36}, unique-id = {22000601}, issn = {1468-6783}, year = {2011}, eissn = {1471-406X}, pages = {95-119} } @article{MTMT:22000603, title = {Enhanced permanganate chemiluminescence}, url = {https://m2.mtmt.hu/api/publication/22000603}, author = {Francis, PS and Hindson, CM and Terry, JM and Smith, ZM and Slezak, T and Adcock, JL and Fox, BL and Barnett, NW}, doi = {10.1039/c0an00588f}, journal-iso = {ANALYST}, journal = {ANALYST}, volume = {136}, unique-id = {22000603}, issn = {0003-2654}, year = {2011}, eissn = {1364-5528}, pages = {64-66} } @article{MTMT:22000620, title = {Reconstructing biochemical cluster networks}, url = {https://m2.mtmt.hu/api/publication/22000620}, author = {Haus, UU and Hemmecke, R and Pokutta, S}, doi = {10.1007/s10910-011-9892-6}, journal-iso = {J MATH CHEM}, journal = {JOURNAL OF MATHEMATICAL CHEMISTRY}, volume = {49}, unique-id = {22000620}, issn = {0259-9791}, year = {2011}, eissn = {1572-8897}, pages = {2441-2456} } @article{MTMT:22000622, title = {A Neat Trick Using Oxalic Acid Dihydrate and Potassium Permanganate and Other Experiments with Small Organic Amine or Oxygenated Compounds}, url = {https://m2.mtmt.hu/api/publication/22000622}, author = {Kelland, MA}, doi = {10.1021/ed1004118}, journal-iso = {J CHEM EDUC}, journal = {JOURNAL OF CHEMICAL EDUCATION}, volume = {88}, unique-id = {22000622}, issn = {0021-9584}, year = {2011}, eissn = {1938-1328}, pages = {276-278} } @article{MTMT:22000602, title = {Kinetic Investigation of the Autocatalytic Reaction between Potassium Permanganate and Hydrogen Peroxide with Soft-modeling Methods}, url = {https://m2.mtmt.hu/api/publication/22000602}, author = {Li, YY and Zhao, Y and Zhu, ZL}, doi = {10.2116/analsci.27.37}, journal-iso = {ANAL SCI}, journal = {ANALYTICAL SCIENCES}, volume = {27}, unique-id = {22000602}, issn = {0910-6340}, year = {2011}, eissn = {1348-2246}, pages = {37-41} } @article{MTMT:24390414, title = {Permanganate Oxidation of alpha-Amino Acids: Kinetic Correlations for the Nonautocatalytic and Autocatalytic Reaction Pathways}, url = {https://m2.mtmt.hu/api/publication/24390414}, author = {Perez-Benito, JF}, doi = {10.1021/jp2043174}, journal-iso = {J PHYS CHEM A}, journal = {JOURNAL OF PHYSICAL CHEMISTRY A}, volume = {115}, unique-id = {24390414}, issn = {1089-5639}, year = {2011}, eissn = {1520-5215}, pages = {9876-9885} } @article{MTMT:22000598, title = {Solution mixing and the emission of light in flow-cells for chemiluminescence detection}, url = {https://m2.mtmt.hu/api/publication/22000598}, author = {Terry, JM and Zammit, EM and Slezak, T and Barnett, NW and Olson, DC and Wolcott, DK and Edwards, DL and Francis, PS}, doi = {10.1039/c0an00591f}, journal-iso = {ANALYST}, journal = {ANALYST}, volume = {136}, unique-id = {22000598}, issn = {0003-2654}, year = {2011}, eissn = {1364-5528}, pages = {913-919} } @article{MTMT:22000621, title = {Determination and resolution of non-UV-visible absorptive component during a kinetic process with modified soft modeling methods}, url = {https://m2.mtmt.hu/api/publication/22000621}, author = {Zhang, QH and Feng, XW and Zhang, DJ and Zhao, Y and Zhu, ZL}, doi = {10.1016/j.chemolab.2011.08.012}, journal-iso = {CHEMOMETR INTELL LAB}, journal = {CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS}, volume = {109}, unique-id = {22000621}, issn = {0169-7439}, year = {2011}, eissn = {1873-3239}, pages = {131-138} } @article{MTMT:22000608, title = {Mechanism of C-F Reductive Elimination from Palladium(IV) Fluorides}, url = {https://m2.mtmt.hu/api/publication/22000608}, author = {Furuya, T and Benitez, D and Tkatchouk, E and Strom, AE and Tang, PP and Goddard, WA and Ritter, T}, doi = {10.1021/ja909371t}, journal-iso = {J AM CHEM SOC}, journal = {JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, volume = {132}, unique-id = {22000608}, issn = {0002-7863}, year = {2010}, eissn = {1520-5126}, pages = {3793-3807} } @article{MTMT:22000624, title = {Decomposition of reaction networks: the initial phase of the permanganate/oxalic acid reaction}, url = {https://m2.mtmt.hu/api/publication/22000624}, author = {Haus, UU and Hemmecke, R}, doi = {10.1007/s10910-010-9670-x}, journal-iso = {J MATH CHEM}, journal = {JOURNAL OF MATHEMATICAL CHEMISTRY}, volume = {48}, unique-id = {22000624}, issn = {0259-9791}, year = {2010}, eissn = {1572-8897}, pages = {305-312} } @article{MTMT:22000623, title = {Mechanism of Permanganate Chemiluminescence}, url = {https://m2.mtmt.hu/api/publication/22000623}, author = {Hindson, CM and Francis, PS and Hanson, GR and Adcock, JL and Barnettlt, NW}, doi = {10.1021/ac100363s}, journal-iso = {ANAL CHEM}, journal = {ANALYTICAL CHEMISTRY}, volume = {82}, unique-id = {22000623}, issn = {0003-2700}, year = {2010}, eissn = {1520-6882}, pages = {4174-4180} } @article{MTMT:22000609, title = {KINETICS AND MECHANISM OF THE PERMANGANATE-INDUCED OXIDATIVE CATALYTIC CONDENSATION OF SARCOSINE TO A DIKETOPIPERAZINE}, url = {https://m2.mtmt.hu/api/publication/22000609}, author = {Khatti, Z and Davari, MD and Bahrami, H and Zahedi, M}, doi = {10.3184/146867809X472125}, journal-iso = {PROG REACT KINET MEC}, journal = {PROGRESS IN REACTION KINETICS AND MECHANISM}, volume = 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