Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 680, P. 976 - 986
Published: Nov. 10, 2024
Language: Английский
Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 680, P. 976 - 986
Published: Nov. 10, 2024
Language: Английский
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 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.
Language: Английский
Citations
2Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115774 - 115774
Published: Feb. 1, 2025
Language: Английский
Citations
1Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 25, 2024
RuO2 has been considered as a promising, low-cost, and highly efficient catalyst in the acidic oxygen evolution reaction (OER). However, it suffers from poor stability due to inevitable involvement of lattice mechanism (LOM). Here, we construct unique metallene-based core-skin structure unveil that OER pathway atomic skin can be regulated LOM an adsorbate by altering core species metallene oxides metallenes. This switch is achieved without sacrificing number active sites, enabling Pd@RuO2 metallenes exhibit outstanding activity with low overpotential 189 mV at 10 mA cm–2, which 54 lower than counterpart PdO@RuO2 Additionally, they also robust negligible decay over 100 h 50 outperforming most reported RuO2-based catalysts. Multiple spectroscopic analyses theoretical calculations demonstrate Pd-metallene core, acting electron donor, increases migration energy subsurface atoms optimizes adsorption intermediates on Ru mechanism. Such offers novel way for tuning catalytic behaviors electrocatalysts.
Language: Английский
Citations
5Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 110888 - 110888
Published: Jan. 1, 2025
Language: Английский
Citations
0Published: Jan. 1, 2025
Language: Английский
Citations
0Published: Jan. 1, 2025
Language: Английский
Citations
0ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 26, 2025
Language: Английский
Citations
0Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162227 - 162227
Published: April 1, 2025
Language: Английский
Citations
0Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown
Published: April 4, 2025
RuO2 with high intrinsic activity for water oxidation is a promising alternative to IrO2 in proton exchange membrane (PEM) electrolyzer, but it suffers from long-term stability issues due overoxidation. Here, we report sub-4 nm Ru-RuO2 Schottky nanojunction (Ru-RuO2-SN) prepared by microwave reaction that exhibits and both three-electrode systems PEM devices. The lattice strain charge transfer induced the metal-oxide SN increase work function of Ru-RuO2-SN, optimize local electronic structure, reduce desorption energy metal site oxygen-containing intermediates; as result, leads oxide path mechanism (OPM) inhibits excessive surface ruthenium. Ru-RuO2-SN requires only 165 mV overpotential obtain 10 mA·cm-2 1400 h without obvious degradation, achieving number (6.7 × 106) matching iridium-based catalysts. In electrolyzer an anode catalyst, 1.6 V needed reach 1.0 A·cm-2 shows at 100 1100 500 h. was analyzed density functional theory calculations. This reports durable, pure Ru-based water-oxidation catalyst provides new perspective development efficient
Language: Английский
Citations
0Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136855 - 136855
Published: April 1, 2025
Language: Английский
Citations
0