Pt-Ni nanourchins as electrocatalysts for oxygen reduction reaction

被引：11

作者：

Chang, Qiaowan ^{[1
]}

Xu, Yuan ^{[1
]}

Zhu, Shangqian ^{[1
]}

Xiao, Fei ^{[1
]}

Shao, Minhua ^{[1
,2
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Univ Sci & Technol, Energy Inst, Kowloon, Hong Kong, Peoples R China

来源：

FRONTIERS IN ENERGY | 2017年 / 11卷 / 03期

关键词：

Pt-Ni alloys; nanourchins; oxygen reduction reaction; shape control; fuel cells; NANOPARTICLE CATALYSTS; CORE-SHELL; PERFORMANCE; NANOCRYSTALS; NANOWIRES; STABILITY; OCTAHEDRA; NANORODS; ALLOYS; SIZE;

D O I：

10.1007/s11708-017-0493-3

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Pt-Ni bimetallic alloys with various nanostructures have shown excellent activity toward oxygen reduction reaction (ORR). The ORR activity is highly dependent on the structure of the catalyst. In this paper, Pt-Ni nanourchins were synthesized with an average size of 50 nm consisting of 10-20 nanorods and nanooctahedra by adjusting the synthesis condition. The formation of Pt-Ni nanourchins is mainly dependent on the adding order of solvents (benzyl ether, oleylamine and oleic acid). Pt-Ni nanourchins present a reasonable high ORR activity (0.81 A/mg at 0.9 V).

引用

页码：254 / 259

页数：6

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