2026-10-13T09:02:28Z https://www.scidb.cn/oai

10.57760/sciencedb.Partic.00043 2024-10-11T18:18:02Z

2024-10-11 CeO2 nanoparticles-decorated CoP nanocubes for accelerating alkaline electrocatalytic oxygen evolution reaction doi:10.57760/sciencedb.partic.00043 en Constructing heterojunction interface as an active catalyst is an effective strategy to boost electrocatalytic activity of oxygen evolution reaction (OER). Herein, we report an interfacial CoP/CeO2 heterostructure catalyst constructed by interface engineering and selective phosphorization procedure. X-ray photoelectron spectroscopy (XPS) suggests that coupling CeO2 nanoparticles on the surface of CoP will generate interfacial interaction at the two-phase interface, resulting in electron transfer between CoP and CeO2 components at the interface. Benefitting from the interfacial interaction, large exposed interface area, and luxuriant mesopores structure, CoP/CeO2 shows fascinating alkaline OER performance. At the current densities of 10 and 50 mA cm−2, the optimal CoP/CeO2 heterojunction exhibits lower overpotential (257 and 298 mV) than either CoP (288 and 354 mV) or RuO2 (305 and 409 mV). This work provides a facile synthetic protocol for constructing heterostructure interfaces to improve OER performance. Prussian blue analogue; CeO2 nanoparticles; CoP/CeO2; Oxygen evolution reaction Xueda Ding Yuxin Huang Dongyang Chen Zailai Xie PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/https://doi.org/10.1016/j.partic.2022.12.012 Science Data Bank