Highly catalytic active PtNiCu nanochains for hydrogen evolution reaction

被引：145

作者：

Cao, Xia ^{[1
,3
]}

Han, Yu ^{[1
,2
]}

Gao, Caizhen ^{[1
,2
]}

Xu, Ying ^{[1
,2
]}

Huang, Xiaomin ^{[1
,2
]}

Willander, Magnus ^{[1
]}

Wang, Ning ^{[2
]}

机构：

[1] Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosystem, Beijing 100083, Peoples R China

[2] Beijing Univ Aeronaut & Astronaut, Sch Chem & Environm, Beijing 100083, Peoples R China

[3] Capital Med Univ, Sch Biochem & Pharmaceut Sci, Beijing 100069, Peoples R China

来源：

NANO ENERGY | 2014年 / 9卷

基金：

中国国家自然科学基金;

关键词：

PtNiCu; Nanochains; Electrocatalysis; Hydrogen evolution reaction; ELECTROCHEMICAL IMMUNOASSAY; NANOTUBE ARRAYS; WATER; ACID; ELECTROCATALYSTS; NANOSTRUCTURES; FABRICATION; OXIDATION; NI;

D O I：

10.1016/j.nanoen.2014.08.008

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：

Efficient and low-cost electrocatalysts for hydrogen evolution reaction are key issues for sustainable energy technologies such as solar fuel synthesis and fuel cells. Here we report that trimetallic PtNiCu nanochains can function as efficient hydrogen evolution reactions (HER) electrocatalysts for hydrogen evolution. In acidic media, the nanostructure produces a current density of 200 mA cm(-2) at the overpotential of 0.075 V, which is almost 5 times more electrocatalytically active than the state-of-the-art Pt catalysts on the basis of equivalent Pt mass and is the best among the reported Pt-based materials for HER. Electrochemical and structure characterization studies indicate that the composition-dependent high hydrogen evolution activity is resulted from both the synergistic capabilities of the metal atoms and the abundance of clean active facets on the edge sites. Our findings suggest that controlling the catalytic reaction via well-defined pathways on the multi-metallic alloys provides a great opportunity to improve their catalytic properties for hydrogen evolution reactions. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：301 / 308

页数：8

共 49 条

[1] High electrocatalytic effect of Au-Pd alloy nanoparticles electrodeposited on microwave assisted sol-gel-derived carbon ceramic electrode for hydrogen evolution reaction [J].