Construction of 3D Pt Catalysts Supported on Co-Doped SnO2 Nanourchins for Methanol and Ethanol Electrooxidation

被引：9

作者：

Zhang, Hulin ^{[1
]}

Hu, Chenguo ^{[2
]}

Zhang, Cuiling ^{[2
]}

Zhang, Kaiyou ^{[2
]}

Wang, Mingjun ^{[2
]}

Ding, Yong ^{[3
]}

Lin, Yuan ^{[1
,4
]}

机构：

[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Film & Integrated Device, Chengdu 610054, Sichuan, Peoples R China

[2] Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China

[3] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[4] Univ Elect Sci & Technol China, Inst Elect & Informat Engn Dongguan, Dongguan 523808, Guangdong, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2015年 / 162卷 / 01期

基金：

中国国家自然科学基金;

关键词：

MEMBRANE FUEL-CELLS; OXIDATION; ELECTROCATALYSTS; NANOPARTICLES; RU; NANOSTRUCTURES; ELECTRODE;

D O I：

10.1149/2.0771501jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pt nanoparticles on Co-doped SnO2 nanostructures have been synthesized and used for methanol and ethanol electrooxidation. The hierarchical Co-SnO2 nanostructure with urchin-like morphology, self-assembled from numerous thin nanoneedles, provides a three-demensional (3D) frame for supporting Pt nanoparticles. The as-prepared Pt/Co-SnO2(urchin) nanocatalyst was characterized by X-ray diffraction (XRD), energy dispersiveX-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), field effect scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). Cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry were carried out to comparatively investigate electrochemical properties of Pt/Co-SnO2(urchin), Pt/Co-SnO2(flower), Pt/SnO2 and Pt/C electrocatalysts. The urchin-shaped Pt/Co-SnO2 electrocatalyst shows better catalytic activity and higher catalytic stability compared with the other electrocatalysts. (C) 2014 The Electrochemical Society. All rights reserved.

引用

页码：F92 / F97

页数：6

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