材料科学
三元运算
催化作用
合金
镍
化学工程
阳极
电解
析氧
电解水
分解水
电流密度
金属
无机化学
冶金
电极
化学
电化学
电解质
物理化学
有机化学
量子力学
程序设计语言
工程类
计算机科学
物理
光催化
作者
X.W. Fan,Chunyu Zhang,Zhigang Chen,Tong Liu,Guang Yang,Shuang Hou,Chunyin Zhu,Jinxun Liu,Jiaqiang Xu,Fen Qiao,Yi Cui
出处
期刊:Small
[Wiley]
日期:2024-01-22
被引量:1
标识
DOI:10.1002/smll.202310829
摘要
The pursuit of highly-active and stable catalysts in anodic oxygen evolution reaction (OER) is desirable for high-current-density water electrolysis toward industrial hydrogen production. Herein, a straightforward yet feasible method to prepare WFeRu ternary alloying catalyst on nickel foam is demonstrated, whereby the foreign W, Fe, and Ru metal atoms diffuse into the Ni foam resulting in the formation of inner immobilized ternary alloy. Thanks to the synergistic impact of foreign metal atoms and structural robustness of inner immobilized alloying catalyst, the well-designed WFeRu@NF self-standing anode exhibits superior OER activities. It only requires overpotentials of 245 and 346 mV to attain current densities of 20 and 500 mA cm-2 , respectively. Moreover, the as-prepared ternary alloying catalyst also exhibits a long-term stability at a high-current-density of 500 mA cm-2 for over 45 h, evidencing the inner-immobilization strategy is promising for the development of highly active and stable metal-based catalysts for high-density-current water oxidation process.
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