A dual-phase PtNiCuMnMo high-entropy alloy as high-performance electrocatalyst for oxygen evolution reaction

被引：6

作者：

Miao, Fang ^{[1
,2
,4
]}

Wang, Tongheng ^{[3
]}

Jing, Zhiyuan ^{[2
]}

Zhang, Zhibin ^{[2
]}

Wang, Jun ^{[4
]}

Gu, Tao ^{[1
]}

Yan, Zhijie ^{[1
,4
]}

Liang, Xiubing ^{[2
]}

机构：

[1] North Univ China, Coll Mat Sci & Engn, Taiyuan 030051, Peoples R China

[2] Acad Mil Sci, Def Innovat Inst, Beijing 100071, Peoples R China

[3] Southeast Univ, Sch Mat Sci & Engn, Jiangsu Key Lab Adv Met Mat, Nanjing 211189, Peoples R China

[4] North Univ China, Shanxi Key Lab Adv Met Mat Special Environm, Taiyuan 030051, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2025年 / 684卷

基金：

中国博士后科学基金;

关键词：

High entropy alloy; Electrocatalyst; Water splitting; Oxygen evolution reaction; NANOPARTICLES; EFFICIENT; HYDROGEN; NI;

D O I：

10.1016/j.apsusc.2024.161865

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Development of high-performance, durable and cost-effective Pt-based catalysts is essential for improving oxygen evolution reaction (OER) under alkaline conditions. In this study, we introduce a dual-phase PtNiCuMnMo highentropy alloy (HEA) catalyst with an OER overpotential of 250 mV and a Tafel slope of 124 mV/dec at a current density of 10 mA/cm2. Remarkably, the PtNiCuMnMo HEA catalyst maintains 77 % of its activity after 64 h at a current density of 200 mA/cm2. Theoretical calculations further validate the remarkable OER performance of the PtNiCuMnMo HEA catalyst, highlighting its favourable adsorption and charge transfer characteristics. The exceptional OER activity of the PtNiCuMnMo HEA catalyst considerably surpass those of commercial RuO2 catalysts, highlighting the potential of this catalyst to revolutionise water-splitting technology.

引用

页数：8

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