Ultrafine phosphorus-doped rhodium for enhanced hydrogen electrocatalysis in alkaline electrolytes

被引：41
作者：
Su, Lixin [1 ]
Zhao, Yuanmeng [1 ]
Yang, Fulin [1 ]
Wu, Tian [3 ]
Cheng, Gongzhen [1 ]
Luo, Wei [1 ,2 ]
机构：
[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
[2] Wuhan Univ, Suzhou Inst, Suzhou 215123, Jiangsu, Peoples R China
[3] Hubei Univ Educ, Inst Mat Res & Engn, Wuhan 430205, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2020年 / 8卷 / 24期
基金：
中国国家自然科学基金;
关键词：
EVOLUTION REACTION; OXIDATION REACTION; METAL ELECTROCATALYSTS; BINDING-ENERGY; NANOPARTICLES; DURABILITY; CATALYSTS; PHOSPHIDE; GRAPHENE; INSIGHTS;
D O I：
10.1039/d0ta04260a
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：
Herein, we report the synthesis of an ultrafine P-doped Rh catalyst and its outstanding HER/HOR performance in alkaline electrolytes. Experimental analysis and density functional theory calculations reveal that the synergistic tailoring of the electronic structure of Rh through P doping could lead to the reduction of the limiting potential of alkaline HER/HOR, which contributes to the remarkable catalytic performances with about 22-fold enhancement compared with that of Rh/C and commercial Pt/C towards alkaline HER. In addition, P-Rh/C also exhibits excellent catalytic performance towards alkaline HOR, with the exchange current density normalized by metal mass as 0.683 mA mu g(Metal)(-1), much higher than that of Rh/C and commercial Pt/C.
引用
收藏
页码：11923 / 11927
页数：5
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