Template-free synthesis of chain-like PtCu nanowires and their superior performance for oxygen reduction and methanol oxidation reaction

被引：37

作者：

Cao, Jianyu ^{[1
]}

Du, Yingying ^{[1
]}

Dong, Mingming ^{[1
]}

Chen, Zhidong ^{[1
,2
]}

Xu, Juan ^{[1
,3
]}

机构：

[1] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China

[2] Changzhou Univ, Sch Mat Sci & Engn, Jiangsu Key Lab Mat Surface Sci & Technol, Changzhou 213164, Peoples R China

[3] Univ Delaware, WM Keck Ctr Adv Microscopy & Microanal, Newark, DE 19716 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 747卷

基金：

中国国家自然科学基金;

关键词：

Proton exchange membrane fuel cell; Oxygen reduction reaction; Methanol oxidation reaction; Electrocatalyst; PtCu nanowires; Alloy phases; FUEL-CELL; PARTICLE-SIZE; GALVANIC REPLACEMENT; DIRECTED SYNTHESIS; REACTION ORR; ELECTROCATALYSTS; NANOPARTICLES; GRAPHENE; CATALYSTS; TRANSITION;

D O I：

10.1016/j.jallcom.2018.03.025

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：

Chain-like PtCu nanowires were successfully synthesized in the absence of any templates or surfactants by a facile chemical co-reaction approach. The resulting PtCu nanowires were characterized by transmission electron microscopy, scanning electron microscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy, and electrochemical techniques. Utilized as electrocatalysts, the PtCu nanowires exhibit superior catalytic activity toward both the oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR) compared to commercially carbon-supported platinum (Pt/C-JM) catalyst, indicating their potential applications in fuel cell. In addition, the effect of the relative distribution of PtCu and PtCu3 alloy phases coexisting in PtCu nanowires catalysts on the ORR activity was also investigated. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：124 / 130

页数：7

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