Two-step sequence for synthesis of efficient PtSn@Rh/C catalyst for oxidizing ethanol and intermediate products

被引：25

作者：

Song, Shuqin ^{[2
]}

He, Chaoxiong ^{[2
]}

Liu, Jinchao ^{[2
]}

Wang, Yi ^{[1
]}

Brouzgou, Angeliki ^{[3
]}

Tsiakaras, Panagiotis ^{[3
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

[3] Univ Thessaly, Sch Engn, Dept Mech Engn, Volos 38334, Volos, Greece

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2012年 / 119卷

基金：

中国国家自然科学基金;

关键词：

PtSn@Rh/C; Ethanol electrooxidation; Acetaldehyde electrooxidation; Acetic acid electrooxidation; OXIDATION; PLATINUM; ELECTROOXIDATION; ELECTRODES; RHODIUM;

D O I：

10.1016/j.apcatb.2012.02.022

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：

PtSn@Rh/C-HT catalysts were designed and synthesized by a two-step sequence synthesis: Rh was firstly deposited on the carbon support and then PtSn through microwave assisted polyol method, followed by the heat treatment (HT) in a reductive atmosphere. This well-designed process provided PtSn@Rh/C-HT with a desirable electrocatalytic activity towards the electrooxidation of ethanol as well as its intermediate products. Especially, for the acetic acid electrooxidation, PtSn@Rh/C-HT behaved quite different from Pt/C, PtSn/C, PtSn@Rh/C without heat-treatment, and PtSnRh/C fabricated through one-step method, without the characteristic peaks for hydrogen adsorption-desorption but significant oxidation current of acetic acid. This gives a platform for taking full advantage of the joint synergistic effect among Pt, Sn and Rh for direct ethanol fuel cell applications. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：227 / 233

页数：7

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