TY - JOUR AU - Monis Ayyub, Mohd AU - Kormányos, Attila AU - Endrődi, Balázs AU - Janáky, Csaba TI - Electrochemical carbon monoxide reduction at high current density: Cell configuration matters JF - CHEMICAL ENGINEERING JOURNAL J2 - CHEM ENG J VL - online PY - 2024 SP - 151698 SN - 1385-8947 DO - 10.1016/j.cej.2024.151698 UR - https://m2.mtmt.hu/api/publication/34826023 ID - 34826023 LA - English DB - MTMT ER - TY - JOUR AU - Balog, Ádám AU - Kecsenovity, Egon AU - Samu, Gergely Ferenc AU - He, Jie AU - Fekete, Dávid AU - Janáky, Csaba TI - Paired photoelectrochemical conversion of CO2/H2O and glycerol at high rate JF - NATURE CATALYSIS J2 - NAT CATAL PY - 2024 SN - 2520-1158 DO - 10.1038/s41929-024-01134-3 UR - https://m2.mtmt.hu/api/publication/34825908 ID - 34825908 AB - Photoelectrochemistry holds the promise of directly converting sunlight to valuable chemical products. Photoelectrochemical (PEC) methods, however, lag behind their electrochemical counterparts in terms of current density. In this work, we demonstrate that, by using concentrated sunlight, we can achieve current densities similar to electrochemical methods, but with lower energy input. Specifically, we combined the direct PEC oxidation of glycerol with the dark hydrogen evolution or CO 2 reduction in a membrane-separated continuous-flow PEC cell. We achieved over 110 mA cm −2 photocurrent density, which is at least an order of magnitude larger than those typically reported in the literature. We demonstrated that the product distribution of glycerol oxidation is notably different in PEC and electrochemical scenarios at the same current density, and the parasitic oxygen evolution reaction can be suppressed in the PEC case. This approach raises opportunities to drive complex electrochemical reactions in a more selective manner. LA - English DB - MTMT ER - TY - JOUR AU - Kormányos, Attila AU - Szirmai, Adrienn AU - Endrődi, Balázs AU - Janáky, Csaba TI - Stable Operation of Paired CO2 Reduction/Glycerol Oxidation at High Current Density JF - ACS CATALYSIS J2 - ACS CATAL VL - 14 PY - 2024 IS - 9 SP - 6503 EP - 6512 PG - 10 SN - 2155-5435 DO - 10.1021/acscatal.3c05952 UR - https://m2.mtmt.hu/api/publication/34823504 ID - 34823504 LA - English DB - MTMT ER - TY - JOUR AU - Trényi-Sárosi, Krisztina AU - Tuinenga, Christopher AU - Samu, Gergely Ferenc AU - Mogyorósi, Károly AU - Dudás, Júlia Rita AU - Tóth, Bálint AU - Jójárt, Péter AU - Gilicze, Barnabás AU - Seres, Imre AU - Bengery, Zsolt Gábor AU - Janáky, Csaba AU - Chikán, Viktor TI - Temperature Dependent Carrier Dynamics in Ga-Alloyed CdSe/ZnS Core–Shell Quantum Dots JF - JOURNAL OF PHYSICAL CHEMISTRY C J2 - J PHYS CHEM C VL - 128 PY - 2024 IS - 9 SP - 3815 EP - 3823 PG - 9 SN - 1932-7447 DO - 10.1021/acs.jpcc.3c04689 UR - https://m2.mtmt.hu/api/publication/34725884 ID - 34725884 LA - English DB - MTMT ER - TY - JOUR AU - Chen, Xiangtian AU - Pasanen, Hannu P. AU - Khan, Ramsha AU - Tkachenko, Nikolai V. AU - Janáky, Csaba AU - Samu, Gergely Ferenc TI - Effect of Single-Crystal TiO 2 /Perovskite Band Alignment on the Kinetics of Electron Extraction JF - JOURNAL OF PHYSICAL CHEMISTRY LETTERS J2 - J PHYS CHEM LETT VL - 15 PY - 2024 IS - 7 SP - 2057 EP - 2065 PG - 9 SN - 1948-7185 DO - 10.1021/acs.jpclett.3c03536 UR - https://m2.mtmt.hu/api/publication/34688798 ID - 34688798 LA - English DB - MTMT ER - TY - JOUR AU - Dela Cruz, John Mark Christian AU - Balog, Ádám AU - Tóth, Péter Sándor AU - Bencsik, Gábor AU - Samu, Gergely Ferenc AU - Janáky, Csaba TI - Au-decorated Sb 2 Se 3 photocathodes for solar-driven CO 2 reduction JF - EES CATALYSIS J2 - EES. CATAL VL - 2 PY - 2024 SP - 664 EP - 674 PG - 11 SN - 2753-801X DO - 10.1039/D3EY00222E UR - https://m2.mtmt.hu/api/publication/34528348 ID - 34528348 AB - A nano-structured photoelectrode made from Sb 2 Se 3 was prepared and was utilized for CO 2 reduction. Au nanoparticle catalysts were deposited to facilitate CO formation. LA - English DB - MTMT ER - TY - JOUR AU - Raya-Imbernón, Andrés AU - Samu, Angelika Anita AU - Barwe, Stefan AU - Cusati, Giuseppe AU - Fődi, Tamás AU - Hepp, Balázs M. AU - Janáky, Csaba TI - Renewable Syngas Generation via Low-Temperature Electrolysis: Opportunities and Challenges JF - ACS ENERGY LETTERS J2 - ACS ENERGY LETT VL - 9 PY - 2024 IS - 1 SP - 288 EP - 297 PG - 10 SN - 2380-8195 DO - 10.1021/acsenergylett.3c02446 UR - https://m2.mtmt.hu/api/publication/34527971 ID - 34527971 LA - English DB - MTMT ER - TY - JOUR AU - Farkas, Luca AU - Monzini, Ilaria AU - Takács, Erzsébet AU - Wojnárovits, László AU - Vörös, Mónika AU - Vágvölgyi, Csaba AU - Janáky, Csaba AU - Alapi, Tünde TI - Comparison of the effectiveness of UV, UV/VUV photolysis, ozonation, and ozone/UV processes for the removal of sulfonamide antibiotics JF - JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING J2 - J ENVIRON CHEM ENG VL - 12 PY - 2024 IS - 1 PG - 13 SN - 2213-3437 DO - 10.1016/j.jece.2023.111845 UR - https://m2.mtmt.hu/api/publication/34482345 ID - 34482345 LA - English DB - MTMT ER - TY - JOUR AU - Staerz, Anna AU - van Leeuwen, Marieke AU - Priamushko, Tatiana AU - Saatkamp, Torben AU - Endrődi, Balázs AU - Plankensteiner, Nina AU - Jobbágy, Matías AU - Pahlavan, Sohrab AU - Blom, Martijn J. W. AU - Janáky, Csaba AU - Cherevko, Serhiy AU - Vereecken, Philippe TI - Effects of Iron Species on Low Temperature CO2 Electrolyzers JF - ANGEWANDTE CHEMIE-INTERNATIONAL EDITION J2 - ANGEW CHEM INT EDIT VL - 63 PY - 2024 IS - 5 PG - 21 SN - 1433-7851 DO - 10.1002/anie.202306503 UR - https://m2.mtmt.hu/api/publication/34150482 ID - 34150482 AB - Electrochemical energy conversion devices are considered key in reducing CO2 emissions and significant efforts are being applied to accelerate device development. Unlike other technologies, low temperature electrolyzers have the ability to directly convert CO2 into a range of value‐added chemicals. To make them commercially viable, however, device efficiency and durability must be increased. Although their design is similar to more mature water electrolyzers and fuel cells, new cell concepts and components are needed. Due to the complexity of the system, singular component optimization is common. As a result, the component interplay is often overlooked. The influence of Fe‐species clearly shows that the cell must be considered holistically during optimization, to avoid future issues due to component interference or cross‐contamination. Fe‐impurities are ubiquitous, and their influence on single components is well‐researched. The activity of non‐noble anodes has been increased through the deliberate addition of iron. At the same time, however, Fe‐species accelerate cathode and membrane degradation. Here, we interpret literature on single components to gain an understanding of how Fe‐species influence low temperature CO2 electrolyzers holistically. The role of Fe‐species serves to highlight the need for considerations regarding component interplay in general. LA - English DB - MTMT ER - TY - THES AU - Janáky, Csaba TI - Ahol a fotoelektrokémia és az anyagtudomány találkoznak: egyszerű és összetett fotoelektródok előállítása és tulajdonságai PY - 2023 UR - https://m2.mtmt.hu/api/publication/34159130 ID - 34159130 LA - Hungarian DB - MTMT ER -