International Journal of Hydrogen Energy, Год журнала: 2024, Номер 110, С. 219 - 225
Опубликована: Март 1, 2024
Язык: Английский
Chemical Engineering Journal, Год журнала: 2024, Номер 495, С. 153433 - 153433
Опубликована: Июнь 24, 2024
Язык: Английский
Процитировано
7
Advanced Energy Materials, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 9, 2024
Abstract Designing efficient and CO‐tolerant catalysts for hydrogen oxidation reaction (HOR) in anode is one of the challenges alkaline exchange membrane fuel cells practical application. Herein, Ru‐MnO heterostructure with two adjacent clusters supported on commercial carbon (BP 2000) (denoted as Ru‐MnO/C) designed to accelerate sluggish kinetics HOR. The cluster–cluster interface modifies electronic structure Ru sites electron transfer from MnO, then optimizes adsorption intermediates sites. Consequently, this catalyst exhibits high catalytic HOR activities media current density (3.71 mA cm −2 ) mass activity (0.78 A mg −1 ). Meanwhile, cell delivers a specific peak power (PPD) 7.0 W under H 2 /O condition, which higher than that most reported catalysts. More importantly, also demonstrates remarkable stability CO‐tolerance. This work presents superiority toward HOR, expected further enlighten design advanced electrocatalysis.
Язык: Английский
Процитировано
6
Chemical Engineering Journal, Год журнала: 2024, Номер 501, С. 157669 - 157669
Опубликована: Ноя. 17, 2024
Язык: Английский
Процитировано
3
Chemical Communications, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Uniform RuAgW nanoparticles demonstrate high HOR activity due to weakened hydrogen binding energy (HBE) and strengthened hydroxide (OHBE).
Язык: Английский
Процитировано
0
Advanced Science, Год журнала: 2024, Номер unknown
Опубликована: Окт. 25, 2024
Effective hydrogen evolution reaction (HER) under high current density and enhanced oxidation (HOR) over a wide potential range remain challenges for Ru-based electrocatalysts because its strong affinity to the adsorbed hydroxyl (OH
Язык: Английский
Процитировано
2
ChemSusChem, Год журнала: 2024, Номер unknown
Опубликована: Сен. 21, 2024
Abstract This review focuses on recent advancements in the development and understanding of nickel‐based catalysts for hydrogen oxidation reaction alkaline media. Given economic environmental limitations associated with platinum group metals, have emerged as promising alternatives due to their abundance, lower cost, comparable catalytic properties. The begins an exploration fundamental HOR mechanisms, emphasizing key roles reactive species optimizing activity Ni‐based catalysts. Thermodynamic stability optimizations are thoroughly examined, focusing alloying strategies, heteroatom incorporation, use various support materials enhance performance durability. also addresses challenge catalyst poisoning, particularly by carbon monoxide, evaluates effectiveness different approaches improve poison resistance. Finally, concludes summarizing findings proposing future research directions further efficiency practical applications anion exchange membrane fuel cells. insights gained from this comprehensive analysis aim contribute cost‐effective sustainable facilitate broader adoption AEMFCs quest clean energy solutions.
Язык: Английский
Процитировано
1
Membranes, Год журнала: 2024, Номер 14(12), С. 246 - 246
Опубликована: Ноя. 22, 2024
This work aims at the effects of anion-exchange membranes (AEMs) and ionomer binders on catalyst electrodes for membrane fuel cells (AEMFCs). In experiments, four metal catalysts (nano-grade Pt, PtRu, PdNi Ag), AEMs (aQAPS-S8, AT-1, X37-50T X37-50RT) two alkaline ionomers (aQAPS-S14 XB-7) were used. They verified through several technical parameters examination cell performance comparison optimal selection AMEs. The bimetallic nanoparticles (PdNi/C) loaded with Vulcan XC-72R carbon black used as anode by using wet impregnation method, Ag (Ag/C) cathode. It was found that power density current X37-50RT are higher than other three membranes. Also, XB-7 had better aQAPS-S14. efficiency improved 32%, 155% 27%, respectively, when compared to same PdNi/C, Ag/C Pt/C. results consistent ion conductivity measurements, which showed is highest among them. values hydroxide ions (OH
Язык: Английский
Процитировано
1
Chem Catalysis, Год журнала: 2024, Номер unknown, С. 101197 - 101197
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
1
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 110, С. 219 - 225
Опубликована: Март 1, 2024
Язык: Английский
Процитировано
0