Ultrathin branched PtFe and PtRuFe nanodendrites with enhanced electrocatalytic activity

被引：66

作者：

Cai, Zhao ^{[1
]}

Kuang, Yun ^{[1
]}

Qi, Xiaohan ^{[1
]}

Wang, Peng ^{[1
]}

Zhang, Ying ^{[1
]}

Zhang, Zhichao ^{[1
]}

Sun, Xiaoming ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 03期

基金：

中国国家自然科学基金;

关键词：

ONE-POT SYNTHESIS; NANOCRYSTALS; NANOSTRUCTURES; PLATINUM; NI; ALLOYS; CU;

D O I：

10.1039/c4ta04698f

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：

PtFe and PtRuFe nanodendrites with highly branched structure were obtained through a facile one-pot strategy. Time dependent experiments revealed that the kinetic control of the reduction process of the metal precursors played a key role in the formation of such open porous structure. Owing to its ultrathin branches, open porous but interconnected structure and synergetic effect of multicomponents, the PtRuFe nanodendrite turned out to be a high-performance electrocatalyst for methanol oxidation. It has been demonstrated that PtRuFe nanodendrites had a methanol oxidation mass activity of 1.14 A mg(-1) Pt and a specific activity of 2.03 mA cm(-2), which were far better than those of PtFe and commercial Pt/C catalyst.

引用

页码：1182 / 1187

页数：6

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