@CONFERENCE{MTMT:34821191, title = {Chemical differences in the non-protected carbon pool of four Hungarian soils with different vegetation types}, url = {https://m2.mtmt.hu/api/publication/34821191}, author = {Filep, Tibor and Zacháry, Dóra and Tőke, Orsolya and Domján, Attila and Szalai, Zoltán}, booktitle = {EGU General Assembly 2024 : abstracts}, doi = {10.5194/egusphere-egu24-8025}, unique-id = {34821191}, year = {2024}, orcid-numbers = {Szalai, Zoltán/0000-0001-5267-411X} } @article{MTMT:32327556, title = {Synthesis and Characterization of Graphite Oxide Derived TiO2-Carbon Composites as Potential Electrocatalyst Supports}, url = {https://m2.mtmt.hu/api/publication/32327556}, author = {Ayyubov, Ilgar and Borbáth, Irina and Pászti, Zoltán and Sebestyén, Zoltán and Mihály, Judith and Szabó, Tamás and Nyergesné Illés, Erzsébet and Domján, Attila and Florea, Mihaela and Radu, Dana and Kuncser, Andrei and Tompos, András and Tálas, Emília}, doi = {10.1007/s11244-021-01513-1}, journal-iso = {TOP CATAL}, journal = {TOPICS IN CATALYSIS}, unique-id = {32327556}, issn = {1022-5528}, abstract = {TiO2-C (carbon) hybrid materials are promising electrocatalyst supports because the presence of TiO2 results in enhanced stability. Use of new types of carbonaceous materials such as reduced graphene oxide instead of traditional active carbon provides certain benefits. Although the rutile polymorph of TiO2 seems to have the most beneficial properties in these hybrid materials, the anatase type is more frequent in TiO2-rGO composites, especially in graphite oxide (GO) derived ones, as GO has several properties which may interfere with rutile formation. To explore and evaluate these peculiarities and their influence on the composite formation, we compared TiO2-C systems formulated with GO and Black Pearls (BP) carbon. Various physicochemical methods, such as attenuated total reflection infrared (ATR-IR)-, solid state NMR-, Raman- and X-ray photoelectron spectroscopy, X-ray powder diffraction (XRD), electron microscopy, etc. were used to characterize the samples from the different stages of our multistep sol–gel synthesis. Our experiments demonstrated that utilization of GO is indeed feasible for composite preparation, although its sodium contamination has to be removed during the synthesis. On the other hand, high temperature treatment and/or solvothermal treatment during composite synthesis resulted in decomposition of the functional groups of the GO and the functional properties of the final product were similar in case of both composites. However, Pt/TiO2-GO derived sample showed higher oxygen reduction reaction activity than Pt/TiO2-BP derived one. Based on the decrease of electrochemical surface area, the stability order was the following: Pt/C (commercial) < Pt/TiO2-BP derived C < Pt/TiO2-GO derived C. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.}, year = {2024}, eissn = {1572-9028}, orcid-numbers = {Szabó, Tamás/0000-0001-8182-640X; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Florea, Mihaela/0000-0002-6612-6090} } @article{MTMT:33532503, title = {Ring-Opening Metathesis Polymerization and Related Olefin Metathesis Reactions in Benzotrifluoride as an Environmentally Advantageous Medium}, url = {https://m2.mtmt.hu/api/publication/33532503}, author = {Kovács, Ervin and Balterer, Bence and Nguyen, Duc and Szarka, Györgyi Éva and Owen, Michael Christopher and Domján, Attila and Iván, Béla}, doi = {10.3390/ijms24010671}, journal-iso = {INT J MOL SCI}, journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES}, volume = {24}, unique-id = {33532503}, issn = {1661-6596}, abstract = {A tremendous number of solvents, either as liquids or vapors, contaminate the environment on a daily basis worldwide. Olefin metathesis, which has been widely used as high-yielding protocols for ring-opening metathesis polymerization (ROMP), ring-closing metathesis (RCM), and isomerization reactions, is typically performed in toxic and volatile solvents such as dichloromethane. In this study, the results of our systematic experiments with the Grubbs G1, G2, and Hoveyda-Grubbs HG2 catalysts proved that benzotrifluoride (BTF) can replace dichloromethane (DCM) in these reactions, providing high yields and similar or even higher reaction rates in certain cases. The ROMP of norbornene resulted not only in high yields but also in polynorbornenes with a high molecular weight at low catalyst loadings. Ring-closing metathesis (RCM) experiments proved that, with the exception of the G1 catalyst, RCM occurs with similar high efficiencies in BTF as in DCM. It was found that isomerization of (Z)-but-2-ene-1,4-diyl diacetate with the G2 and HG2 catalysts proceeds at significantly higher initial rates in BTF than in DCM, leading to rapid isomerization with high yields in a short time. Overall, BTF is a suitable solvent for olefin metathesis, such as polymer syntheses by ROMP and the ring-closing and isomerization reactions.}, keywords = {ISOMERIZATION; NORBORNENE; OLEFIN METATHESIS; Green solvent; ring-opening metathesis polymerization (ROMP); Benzotrifluoride; Homogenous catalysis; ring-closing metathesis (RCM)}, year = {2023}, eissn = {1422-0067}, orcid-numbers = {Kovács, Ervin/0000-0002-3939-6925} } @article{MTMT:32896298, title = {Interactions in dopamine and indole loaded thermosensitive hydrogels seen by high sensitivity microDSC. Implications for drug delivery}, url = {https://m2.mtmt.hu/api/publication/32896298}, author = {Bulátkó, Anna and Domján, Attila and Madarász, János and Nagyné László, Krisztina}, doi = {10.1007/s10973-022-11383-8}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, volume = {147}, unique-id = {32896298}, issn = {1388-6150}, abstract = {Controlled and targeted drug delivery systems consist of a carrier matrix and one or more active ingredients. One of the roles of the matrix is to regulate the release of the drug. Uptake, release, differential scanning microcalorimetry (DSC) and powder X-ray diffraction (XRD) techniques were used to reveal the interactions governing the release of dopamine and indole from a thermoresponsive model polymer gel. The dopamine can be completely recovered from the loaded polymer matrix. The self-assembling affinity of the dopamine molecules reduces their interaction with the polymer, and the water molecules can form a uniform protecting water sheath. Thus neither the kinetics nor the temperature of the phase transition of the carrier matrix are influenced by the dopamine. The DSC results imply the formation of polymer and dopamine-rich domains above the phase transition. Indole, on the other hand, readily substitutes for the water molecules through the interaction between the C=O sites of the polymer and the NH groups of the drug. The loss of the protecting hydrophobic water and the decelerated fluctuation of the indole decorated polymer chains result in a much slower phase transition and a depleted phase transition temperature. The interaction between the carrier matrix and the indole results in a uniform distribution of the drug and after drying the indole is found in amorphous form. Dopamine, on the contrary, forms crystalline regions.}, keywords = {Dopamine; HOST; Calorimetry; THERMODYNAMICS; Chemistry, Analytical; INDOLE; responsive polymers; Poly(n-isopropylacrylamide) gel}, year = {2022}, eissn = {1572-8943}, pages = {11909-11920}, orcid-numbers = {Nagyné László, Krisztina/0000-0003-4499-3983} } @article{MTMT:32304791, title = {Z‐Selective Fluoroalkenylation of (Hetero)Aromatic Systems by Iodonium reagents in Palladium‐Catalyzed Directed C‐H Activation}, url = {https://m2.mtmt.hu/api/publication/32304791}, author = {Tóth, Balázs László and Sályi, Gergő and Domján, Attila and Lejtoviczné Egyed, Orsolya and Bényei, Attila Csaba and Gonda, Zsombor and Novák, Zoltán}, doi = {10.1002/adsc.202101108}, journal-iso = {ADV SYNTH CATAL}, journal = {ADVANCED SYNTHESIS & CATALYSIS}, volume = {364}, unique-id = {32304791}, issn = {1615-4150}, year = {2022}, eissn = {1615-4169}, pages = {348-354}, orcid-numbers = {Tóth, Balázs László/0000-0001-6438-5796; Novák, Zoltán/0000-0001-5525-3070} } @article{MTMT:32259266, title = {UV and (V)UV irradiation of sitagliptin in ultrapure water and WWTP effluent: Kinetics, transformation products and degradation pathway}, url = {https://m2.mtmt.hu/api/publication/32259266}, author = {Krakkó, Dániel and Illés, Ádám and Domján, Attila and Demeter, Attila and Dóbé, Sándor and Záray, Gyula}, doi = {10.1016/j.chemosphere.2021.132393}, journal-iso = {CHEMOSPHERE}, journal = {CHEMOSPHERE}, volume = {288}, unique-id = {32259266}, issn = {0045-6535}, year = {2022}, eissn = {1879-1298}, orcid-numbers = {Krakkó, Dániel/0000-0003-1552-7377; Záray, Gyula/0000-0003-2164-1176} } @{MTMT:32493345, title = {Bicontinuous nanophasic amphiphilic polymer conetworks with broad composition range: A novel nanostructured material platform}, url = {https://m2.mtmt.hu/api/publication/32493345}, author = {Iván, Béla and Fodor, Csaba and Stumphauser, Tímea and Kasza, György and Haraszti, Márton and Kali, Gergely and Mezey, Péter and Pásztor, Szabolcs and Szabó, Ákos and Domján, Attila and Thomann, Ralf and Thomann, Yi and Mülhaupt, Rolf}, booktitle = {Polymer meeting 14 - book of abstract}, unique-id = {32493345}, year = {2021}, pages = {IL-9}, orcid-numbers = {Kasza, György/0000-0003-3335-8730} } @article{MTMT:32388638, title = {Ring-opening polymerization of epsilon-caprolactone from cellulose acetate by reactive processing}, url = {https://m2.mtmt.hu/api/publication/32388638}, author = {Imre, Balázs and Kiss, Elek Z. and Domján, Attila and Cui, Lu and Pukánszky, Béla}, doi = {10.1007/s10570-021-04038-8}, journal-iso = {CELLULOSE}, journal = {CELLULOSE}, volume = {28}, unique-id = {32388638}, issn = {0969-0239}, abstract = {The internal plasticization of cellulose acetate (CA) was achieved by grafting with epsilon-caprolactone (CL) via reactive processing. The effect of varying concentrations of tin(II) bis(2-ethylhexanoate) [Sn(Oct)(2)] and iron(III) acetylacetonate [Fe(Acac)(3)] catalysts on the ring-opening polymerization (ROP) of CL were compared with each other. The analysis of processing parameters, weight loss measurements, FTIR, and H-1 NMR spectrometry all showed improving grafting efficiency with increasing concentrations of both catalysts. Processing conditions also significantly affect the characteristics of the final product. The resulting structure, i.e., relatively long (2200 g/mol) PCL chains grafted to a small number (1-3%) of CA hydroxyls, promotes thermoplasticity, thus enabling processing in the melt state, while also preserving the biodegradable character of cellulose acetate. The performances of the two catalysts were found to be very similar, which suggests that conventional Sn(Oct)(2) could be substituted with the less toxic Fe(Acac)(3) for the graft ROP of caprolactone.}, keywords = {NMR spectroscopy; Sustainable chemistry; degree of substitution; Graft copolymerization; ROP; Internal plasticization}, year = {2021}, eissn = {1572-882X}, pages = {9103-9116}, orcid-numbers = {Imre, Balázs/0000-0001-9859-0149} } @article{MTMT:32244306, title = {A study of the mechanism of triglyceride hydrodeoxygenation over alumina-supported and phosphatized-alumina-supported Pd catalysts}, url = {https://m2.mtmt.hu/api/publication/32244306}, author = {Vikár, Anna and Solt, Hanna Erzsébet and Novodárszki, Gyula and Rosenbergerné Mihályi, Magdolna and Barthos, Róbert and Domján, Attila and Hancsók, Jenő and Valyon, József and Lónyi, Ferenc}, doi = {10.1016/j.jcat.2021.08.052}, journal-iso = {J CATAL}, journal = {JOURNAL OF CATALYSIS}, volume = {404}, unique-id = {32244306}, issn = {0021-9517}, year = {2021}, eissn = {1090-2694}, pages = {67-79}, orcid-numbers = {Vikár, Anna/0000-0002-3069-3034; Hancsók, Jenő/0000-0003-1959-7604; Valyon, József/0000-0002-3608-060X} } @article{MTMT:32101639, title = {Convenient Multicomponent One‐Pot Synthesis of 2‐Iminothiazolines and 2‐Aminothiazoles Using Elemental Sulfur Under Aqueous Conditions}, url = {https://m2.mtmt.hu/api/publication/32101639}, author = {Németh, András György and Marlok, Bence and Domján, Attila and Gao, Qinghe and Han, Xinya and Keserű, György Miklós and Ábrányi-Balogh, Péter}, doi = {10.1002/ejoc.202100548}, journal-iso = {EUR J ORG CHEM}, journal = {EUROPEAN JOURNAL OF ORGANIC CHEMISTRY}, volume = {2021}, unique-id = {32101639}, issn = {1434-193X}, year = {2021}, eissn = {1099-0690}, pages = {3587-3597} }