Fe/Ce Codoped Ni2P Catalyst to Enhance Alkaline Oxygen Evolution Reaction

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2025-04-07 DOI:10.1021/acsaem.5c0051210.1021/acsaem.5c00512

Luo Zhao, Li Wang, Ruijie Shi, Hao Xu, Zixuan Zeng, Xiaomin Lang, Yi Huang, Yuping Liu*, Xiaoqin Liao* and Ming Nie*,

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Abstract

Creating effective oxygen evolution reaction (OER) catalysts is crucial for advancing water electrolysis and hydrogen generation, thereby mitigating the depletion of conventional fossil fuels. This study prepared a Fe/Ce–Ni2P electrocatalyst with a coral-like structure by hydrothermal and low-temperature phosphating methods. The catalyst demonstrated exceptional performance, achieving current densities of 50 and 200 mA cm^–2 at overpotentials of 250 and 310 mV, respectively─significantly outperforming pure Ni₂P by 80 and 160 mV. Specifically, Fe doping significantly enhances conductivity and oxygen evolution activity, while Ce doping improves stability. The Fe/Ce–Ni₂P catalyst exhibited outstanding stability over 100 h, a testament to the synergistic effects of Fe and Ce doping. This work introduces a simple and scalable synthesis strategy, offering a promising approach to developing robust dual-heteroatom-doped catalysts for OER applications.

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Fe/Ce共掺Ni2P催化剂促进碱性析氧反应

创造有效的析氧反应（OER）催化剂对于推进水电解和制氢至关重要，从而减轻传统化石燃料的消耗。本研究采用水热法和低温磷化法制备了一种具有珊瑚状结构的Fe/ Ce-Ni2P电催化剂。催化剂表现出优异的性能，在250和310 mV的过电位下分别实现了50和200 mA cm-2的电流密度，显著优于纯Ni2P 80和160 mV。其中，Fe掺杂显著提高了电导率和析氧活性，Ce掺杂提高了稳定性。Fe/Ce - ni2p催化剂在100 h内表现出优异的稳定性，证明了Fe和Ce掺杂的协同效应。这项工作介绍了一种简单且可扩展的合成策略，为开发用于OER应用的坚固的双杂原子掺杂催化剂提供了一种有前途的方法。

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.