TY - CONF AU - Filep, Tibor AU - Zacháry, Dóra AU - Tőke, Orsolya AU - Domján, Attila AU - Szalai, Zoltán TI - Chemical differences in the non-protected carbon pool of four Hungarian soils with different vegetation types T2 - EGU General Assembly 2024 : abstracts PB - European Geosciences Union (EGU) C1 - Wien PY - 2024 DO - 10.5194/egusphere-egu24-8025 UR - https://m2.mtmt.hu/api/publication/34821191 ID - 34821191 N1 - poszter LA - English DB - MTMT ER - TY - JOUR AU - Ayyubov, Ilgar AU - Borbáth, Irina AU - Pászti, Zoltán AU - Sebestyén, Zoltán AU - Mihály, Judith AU - Szabó, Tamás AU - Nyergesné Illés, Erzsébet AU - Domján, Attila AU - Florea, Mihaela AU - Radu, Dana AU - Kuncser, Andrei AU - Tompos, András AU - Tálas, Emília TI - Synthesis and Characterization of Graphite Oxide Derived TiO2-Carbon Composites as Potential Electrocatalyst Supports JF - TOPICS IN CATALYSIS J2 - TOP CATAL PY - 2024 SN - 1022-5528 DO - 10.1007/s11244-021-01513-1 UR - https://m2.mtmt.hu/api/publication/32327556 ID - 32327556 N1 - Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), Magyar Tudósok körútja 2, Budapest, 1117, Hungary Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, Szeged, 6720, Hungary Department of Food Engineering, Faculty of Engineering, University of Szeged, Mars tér 7, Szeged, 6724, Hungary Research Centre for Natural Sciences, Centre for Structural Science, Eötvös Loránd Research Network (ELKH), Magyar Tudósok Körútja 2, Budapest, 1117, Hungary National Institute of Materials Physics, 405A Atomistilor Street, Magurele, 077125, Romania Cited By :1 Export Date: 12 February 2024 Correspondence Address: Tálas, E.; Research Centre for Natural Sciences, Magyar Tudósok körútja 2, Hungary; email: talas.emilia@ttk.hu Correspondence Address: Florea, M.; National Institute of Materials Physics, 405A Atomistilor Street, Romania; email: mihaela.florea@chimie.unibuc.ro Funding details: NET-2018, NNE 131270 Funding details: European Commission, EC Funding details: Magyar Tudományos Akadémia, MTA Funding details: European Regional Development Fund, ERDF, NNE130004 Funding text 1: The research within project No. VEKOP-2.3.2-16-2017-00013 was supported by the European Union and the State of Hungary, co-financed by the European Regional Development Fund. Project No. NNE130004 has been implemented with the support provided from the National Research, Development and Innovation Fund of Hungary, financed under the TR-NN-17 funding scheme. Project No. NNE 131270 has been implemented with the support provided from the National Research, Development and Innovation Fund of Hungary financed under the M-ERA.NET-2018 funding scheme. The financial supports by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences are gratefully acknowledged (Erzsébet Illés). The authors also thank Dr. Ágnes Szegedi and Dr. Szilvia Klébert for the nitrogen physisorption measurements, and Dr. Zoltán May for the ICP-OES measurements. AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Kovács, Ervin AU - Balterer, Bence AU - Nguyen, Duc AU - Szarka, Györgyi Éva AU - Owen, Michael Christopher AU - Domján, Attila AU - Iván, Béla TI - Ring-Opening Metathesis Polymerization and Related Olefin Metathesis Reactions in Benzotrifluoride as an Environmentally Advantageous Medium JF - INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES J2 - INT J MOL SCI VL - 24 PY - 2023 IS - 1 PG - 12 SN - 1661-6596 DO - 10.3390/ijms24010671 UR - https://m2.mtmt.hu/api/publication/33532503 ID - 33532503 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Bulátkó, Anna AU - Domján, Attila AU - Madarász, János AU - Nagyné László, Krisztina TI - Interactions in dopamine and indole loaded thermosensitive hydrogels seen by high sensitivity microDSC. Implications for drug delivery JF - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY J2 - J THERM ANAL CALORIM VL - 147 PY - 2022 IS - 21 SP - 11909 EP - 11920 PG - 12 SN - 1388-6150 DO - 10.1007/s10973-022-11383-8 UR - https://m2.mtmt.hu/api/publication/32896298 ID - 32896298 N1 - Funding Agency and Grant Number: Budapest University of Technology and Economics Funding text: Open access funding provided by Budapest University of Technology and Economics. AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Tóth, Balázs László AU - Sályi, Gergő AU - Domján, Attila AU - Lejtoviczné Egyed, Orsolya AU - Bényei, Attila Csaba AU - Gonda, Zsombor AU - Novák, Zoltán TI - Z‐Selective Fluoroalkenylation of (Hetero)Aromatic Systems by Iodonium reagents in Palladium‐Catalyzed Directed C‐H Activation JF - ADVANCED SYNTHESIS & CATALYSIS J2 - ADV SYNTH CATAL VL - 364 PY - 2022 IS - 2 SP - 348 EP - 354 PG - 7 SN - 1615-4150 DO - 10.1002/adsc.202101108 UR - https://m2.mtmt.hu/api/publication/32304791 ID - 32304791 N1 - ELTE Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös Loránd University, Faculty of Science, Pázmány Péter sétány. 1/A, Budapest, H-1117, Hungary Research Centre for Natural Sciences, Eötvös Loránd Research Network, Magyar Tudósok körútja 2, Budapest, H-1117, Hungary Department of Physical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary Export Date: 13 June 2022 CODEN: ASCAF Correspondence Address: Tóth, B.L.; ELTE Catalysis and Organic Synthesis Research Group, Pázmány Péter sétány. 1/A, Hungary; email: tothb@zng.elte.hu Correspondence Address: Gonda, Z.; ELTE Catalysis and Organic Synthesis Research Group, Pázmány Péter sétány. 1/A, Hungary; email: gondazs@zng.elte.hu Correspondence Address: Novák, Z.; ELTE Catalysis and Organic Synthesis Research Group, Pázmány Péter sétány. 1/A, Hungary; email: novakz@elte.hu Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFIH, KH130048, PD124592, TKP2020‐IKA‐05 Funding details: National Research, Development and Innovation Office Funding text 1: This research was funded by National Research, Development and Innovation Office (NKFIH, PD124592, KH130048); This work was completed in the ELTE Thematic Excellence Programme 2020 Supported by NKFIH ‐ TKP2020‐IKA‐05. The authors thank the analytical measurements for Ágnes Gömöry at Research Centre for Natural Sciences, Eötvös Loránd Research Network. LA - English DB - MTMT ER - TY - JOUR AU - Krakkó, Dániel AU - Illés, Ádám AU - Domján, Attila AU - Demeter, Attila AU - Dóbé, Sándor AU - Záray, Gyula TI - UV and (V)UV irradiation of sitagliptin in ultrapure water and WWTP effluent: Kinetics, transformation products and degradation pathway JF - CHEMOSPHERE J2 - CHEMOSPHERE VL - 288 PY - 2022 IS - 2 PG - 11 SN - 0045-6535 DO - 10.1016/j.chemosphere.2021.132393 UR - https://m2.mtmt.hu/api/publication/32259266 ID - 32259266 N1 - Laboratory for Environmental Chemistry and Bioanalytics, Institute of Chemistry, ELTE - Eötvös Loránd University, Pázmány Péter sétány 1/ABudapest H-1117, Hungary Cooperative Research Center for Environmental Sciences, ELTE – Eötvös Loránd University, Pázmány Péter sétány 1/ABudapest H-1117, Hungary Renewable Energy Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2Budapest H-1117, Hungary NMR Research Laboratory, Research Centre for Natural Sciences, Magyar tudósok körútja 2Budapest H-1117, Hungary Environmental Chemistry Research Group, Institute of Aquatic Ecology, Centre for Ecological Research, Karolina út 29-31Budapest H-1113, Hungary Cited By :6 Export Date: 21 November 2023 CODEN: CMSHA Correspondence Address: Záray, G.; Laboratory for Environmental Chemistry and Bioanalytics, Pázmány Péter sétány 1/A, Hungary; email: zaray.gyula@ecolres.hu LA - English DB - MTMT ER - TY - CHAP AU - Iván, Béla AU - Fodor, Csaba AU - Stumphauser, Tímea AU - Kasza, György AU - Haraszti, Márton AU - Kali, Gergely AU - Mezey, Péter AU - Pásztor, Szabolcs AU - Szabó, Ákos AU - Domján, Attila AU - Thomann, Ralf AU - Thomann, Yi AU - Mülhaupt, Rolf TI - Bicontinuous nanophasic amphiphilic polymer conetworks with broad composition range: A novel nanostructured material platform T2 - Polymer meeting 14 - book of abstract SN - 9783851258448 PY - 2021 SP - IL-9 UR - https://m2.mtmt.hu/api/publication/32493345 ID - 32493345 LA - English DB - MTMT ER - TY - JOUR AU - Imre, Balázs AU - Kiss, Elek Z. AU - Domján, Attila AU - Cui, Lu AU - Pukánszky, Béla TI - Ring-opening polymerization of epsilon-caprolactone from cellulose acetate by reactive processing JF - CELLULOSE J2 - CELLULOSE VL - 28 PY - 2021 IS - 14 SP - 9103 EP - 9116 PG - 14 SN - 0969-0239 DO - 10.1007/s10570-021-04038-8 UR - https://m2.mtmt.hu/api/publication/32388638 ID - 32388638 N1 - Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, P.O. Box 91, Budapest, 1521, Hungary Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, P.O. Box 286, Budapest, 1519, Hungary NMR Research Laboratory, Research Centre for Natural Sciences, P.O. Box 286, Budapest, 1519, Hungary Department of Pharmaceutical Sciences, School of Pharmacy, College of Pharmacy, Taipei Medical University, No. 250 Wuxing Street, Taipei, TW-11031, Taiwan Export Date: 14 June 2022 CODEN: CELLE Correspondence Address: Imre, B.; Laboratory of Plastics and Rubber Technology, P.O. Box 91, Hungary; email: imre.balazs@outlook.com Funding details: Budapesti Műszaki és Gazdaságtudományi Egyetem, BME Funding details: Hungarian Scientific Research Fund, OTKA, K 120039 Funding details: China Scholarship Council, CSC Funding text 1: The research leading to these results received funding from the National Scientific Research Fund of Hungary (OTKA Grant No. K 120039), the Stipendium Hungaricum Scholarship Programme, and the China Scholarship Council (CSC). Funding text 2: Lu Cui thanks the Stipendium Hungaricum Scholarship Programme and the China Scholarship Council (CSC) for providing scholarship and aiding to do research at the Budapest University of Technology and Economics AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Vikár, Anna AU - Solt, Hanna Erzsébet AU - Novodárszki, Gyula AU - Rosenbergerné Mihályi, Magdolna AU - Barthos, Róbert AU - Domján, Attila AU - Hancsók, Jenő AU - Valyon, József AU - Lónyi, Ferenc TI - A study of the mechanism of triglyceride hydrodeoxygenation over alumina-supported and phosphatized-alumina-supported Pd catalysts JF - JOURNAL OF CATALYSIS J2 - J CATAL VL - 404 PY - 2021 SP - 67 EP - 79 PG - 13 SN - 0021-9517 DO - 10.1016/j.jcat.2021.08.052 UR - https://m2.mtmt.hu/api/publication/32244306 ID - 32244306 N1 - Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, Budapest, 1117, Hungary Centre for Structural Science, Research Centre for Natural Sciences, Magyar tudósok körútja 2, Budapest, 1117, Hungary Research Centre for Biochemical, Environmental and Chemical Engineering, Department of MOL Hydrocarbon and Coal Processing, University of Pannonia, Veszprém, Veszprém, 8200, Hungary Cited By :2 Export Date: 18 November 2022 CODEN: JCTLA Correspondence Address: Lónyi, F.; Institute of Materials and Environmental Chemistry, Magyar tudósok körútja 2, Hungary; email: lonyi.ferenc@ttk.hu LA - English DB - MTMT ER - TY - JOUR AU - Németh, András György AU - Marlok, Bence AU - Domján, Attila AU - Gao, Qinghe AU - Han, Xinya AU - Keserű, György Miklós AU - Ábrányi-Balogh, Péter TI - Convenient Multicomponent One‐Pot Synthesis of 2‐Iminothiazolines and 2‐Aminothiazoles Using Elemental Sulfur Under Aqueous Conditions JF - EUROPEAN JOURNAL OF ORGANIC CHEMISTRY J2 - EUR J ORG CHEM VL - 2021 PY - 2021 IS - 25 SP - 3587 EP - 3597 PG - 11 SN - 1434-193X DO - 10.1002/ejoc.202100548 UR - https://m2.mtmt.hu/api/publication/32101639 ID - 32101639 N1 - Medicinal Chemistry Research Group, Research Centre for Natural Sciences, Magyar tudósok krt. 2, Budapest, 1117, Hungary NMR Research Laboratory, Research Centre for Natural Sciences, Magyar tudósok krt. 2, Budapest, 1117, Hungary School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, China School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, China Export Date: 24 August 2021 CODEN: EJOCF Correspondence Address: Keserű, G.M.; Medicinal Chemistry Research Group, Magyar tudósok krt. 2, Hungary; email: keseru.gyorgy@ttk.hu Correspondence Address: Ábrányi-Balogh, P.; Medicinal Chemistry Research Group, Magyar tudósok krt. 2, Hungary; email: abranyi-balogh.peter@ttk.hu LA - English DB - MTMT ER -