Exploring Ni-Based Alkaline OER Catalysts: A Comprehensive Review of Structures, Performance, and In Situ Characterization Methods

DeCarbon, Journal Year: 2025, Volume and Issue: unknown, P. 100097 - 100097

Published: Jan. 1, 2025

Language: Английский

Spin Magnetic Effect Activate Dual Site Intramolecular O─O Bridging for Nickel‐Iron Hydroxide Enhanced Oxygen Evolution Catalysis

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract The oxygen evolution reaction (OER) involves the recombination of diamagnetic hydroxyl (OH) or water (H 2 O) into paramagnetic triplet state (O ). spin conservation intermediates plays a crucial role in OER, however, research on dynamics during catalytic process remains its early stages. Herein, β ‐Ni(OH) and Fe‐doped (Ni 5 Fe 1 ) are utilized as model catalysts to understand mechanism magnetic effects at iron (III) sites OER. Combined with characterization, it is founded that introduction transforms antiferromagnetic Ni(OH) ferromagnetic material. Testing response catalyst under an external field, OER activity Ni significantly enhanced comparison . This improvement likely due sites, which promote enhance kinetics, thereby increasing efficiency. Combining experimental theoretical discovered accelerate formation heterogeneous dual‐site O─O bridging, represented ─Ni─O─O─Fe─, effectively enhancing kinetics reaction. study provides perspective structure‐function relationship iron‐based has significant implications for design new catalysts.

Language: Английский

Interface-induced Fe-rich NixFe3-xO4 electrode for efficient oxygen evolution at high current densities

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160173 - 160173

Published: Feb. 1, 2025

Language: Английский