Journal of Energy Chemistry, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 1, 2024
Язык: Английский
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 4, 2025
Abstract Proton exchange membrane water electrolysis (PEMWE) represents a promising technology for renewable hydrogen production. However, the large‐scale commercialization of PEMWE faces challenges due to need acid oxygen evolution reaction (OER) catalysts with long‐term stability and corrosion‐resistant electrode assemblies (MEA). This review thoroughly examines deactivation mechanisms acidic OER crucial factors affecting assembly instability in complex environments, including catalyst degradation, dynamic behavior at MEA triple‐phase boundary, equipment failures. Targeted solutions are proposed, improvements, optimized designs, operational strategies. Finally, highlights perspectives on strict activity/stability evaluation standards, situ/operando characteristics, practical electrolyzer optimization. These insights emphasize interrelationship between catalysts, MEAs, activity, stability, offering new guidance accelerating systems.
Язык: Английский
Процитировано
2
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Март 26, 2025
Proton exchange membrane (PEM) water electrolyzers are one type of the most promising technologies for efficient, nonpolluting and sustainable production high-purity hydrogen. The anode catalysts account a very large fraction cost in PEM electrolyzer also determine lifetime electrolyzer. To date, Ir- Ru-based materials types acidic oxygen evolution reaction (OER), but they still face challenges high or low stability. Hence, exploring Ir stable electrocatalysts OER attracts extensive research interest recent years. Owing to these great efforts, significant developments have been achieved this field. In review, field comprehensively described. possible mechanisms first presented, followed by introduction criteria evaluation electrocatalysts. development then elucidated according strategies utilized tune catalytic performances. Lastly, future burgeoning is discussed.
Язык: Английский
Процитировано
1
Chem, Год журнала: 2024, Номер unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
7
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 92, С. 657 - 671
Опубликована: Окт. 30, 2024
Язык: Английский
Процитировано
6
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 84, С. 634 - 640
Опубликована: Авг. 22, 2024
Язык: Английский
Процитировано
4
Exploration, Год журнала: 2025, Номер unknown
Опубликована: Март 2, 2025
ABSTRACT Metal nitrides have emerged as promising materials for photoelectrochemical and electrochemical catalysis due to their unique electronic properties structural versatility, offering high electrical conductivity abundant active sites catalytic reactions. Herein, we comprehensively explore the characteristics, synthesis, application of diverse metal nitride catalysts. Fundamental features advantages are presented in terms structure surface chemistry. We deal with synthetic principles parameters catalysts nitrogen source, introducing synthesis strategies various morphologies phases. Recent progress (photo)electrochemical reactions, such hydrogen evolution, oxygen reduction, carbon dioxide biomass valorization is discussed tailored roles. By providing future direction remaining challenges, this review aims guide design from a point view, contributing expanding into energy environmental technologies.
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 5, 2025
Abstract The development of highly active iridium oxides with excellent stability in acidic environments and significantly reduced Ir content is crucial for advancing competitive proton exchange membrane water electrolyzer (PEMWE) technologies. In this study, an intrinsically acid‐stable low‐iridium (Ir/IrO x (OH) y ·(H 2 O) n ) OER electrocatalyst via alkali‐assisted ethylene glycol reduction method designed. Ir/IrO shows a hollandite‐like structure abundant edge‐sharing IrO 6 octahedra that accommodates structural OH ligands its tunnels. situ/operando spectroscopies demonstrate lattice (or ligands)–mediated oxygen bypasses key rate‐limiting steps the process, including oxygen–oxygen bond formation adsorbate evolution mechanism (AEM) deprotonation (LOM), which typically hinder efficiency. Moreover, interfacial are shown to accelerate intermediates, thereby enhancing kinetics hydrogen reaction (HER). resulting catalyst achieves lower overpotential 1.79 V exhibits high durability, sustaining 1200 h at 1 A cm −2 under industrial conditions. These findings highlight potential high‐performance, durable PEMWE systems.
Язык: Английский
Процитировано
0
eScience, Год журнала: 2025, Номер unknown, С. 100402 - 100402
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 21, 2025
Abstract Hydrogen production via alkaline seawater electrolysis represents a promising strategy for future sustainable energy development. In this study, FeCoP/TiN/CP(carbon paper) nanoarray electrode with exceptional hydrogen evolution reaction (HER) activity and durability at the industrial current density is successfully fabricated by engineering electronic coupling N─transition metal (TM, Co/Fe)─P interfacial bridge. Remarkably, FeCoP/TiN/CP requires only an overpotential of 129 mV (alkaline fresh water) 152 seawater) to achieve 500 mA cm −2 , stable operation demonstrated 2000 h in freshwater 340 negligible degradation. The superior HER performance stems from unique architecture phase interface N─TM(Co/Fe)─P bridge bonding, which enhances wettability, facilitates bubble release, provides resistance corrosion. Theoretical calculations demonstrate that bridging regulates structure FeCoP, promoting water adsorption dissociation, while optimizing intermediate H* free energy. Furthermore, covalent nature N‐TM(Co/Fe)‐P bridging, along strengthened Co/Fe‐P bonds, contributes stability FeCoP/TiN/CP. This study not new insights into design highly active heterostructure electrocatalysts, but also paves way practical cost‐effective electrolysis.
Язык: Английский
Процитировано
0