Enhanced HOR catalytic activity of PGM-free catalysts in alkaline media: the electronic effect induced by different heteroatom doped carbon supports

被引：93

作者：

Yang, Fulin ^{[1
]}

Bao, Xi ^{[1
]}

Zhao, Yuanmeng ^{[1
]}

Wang, Xuewei ^{[1
]}

Cheng, Gongzhen ^{[1
]}

Luo, Wei ^{[1
]}

机构：

[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Hubei, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2019年 / 7卷 / 18期

基金：

中国国家自然科学基金;

关键词：

HYDROGEN OXIDATION REACTION; OXYGEN-REDUCTION REACTION; FUEL-CELLS; METAL; ELECTROCATALYSTS; NANOPARTICLES; EVOLUTION; EFFICIENT; NANOTUBES; FE;

D O I：

10.1039/c9ta01916b

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：

A series of Ni-based catalysts consisting Ni nanoparticles and heteroatom (S, N, or B) doped carbon supports were constructed systematically, and further investigated to catalyze the hydrogen oxidation reaction (HOR) in alkaline electrolytes. The activity trend was found to follow the sequence of Ni/SC > Ni/NC > Ni/BC. Specifically, benefiting from the optimum anchoring effects and strong metal-support interaction, Ni/SC shows remarkable HOR catalytic performance, which is about 2.9 and 7.7 times higher than that of the dopant-free counterpart, Ni/C, in terms of specific activity and mass activity, respectively.

引用

页码：10936 / 10941

页数：6

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