Facile synthesis of a Bi-modified PtRu catalyst for methanol and ethanol electro-oxidation in alkaline medium

被引:26
|
作者
Huang, Yiyin [1 ]
Cai, Jindi [1 ]
Guo, Yonglang [1 ]
机构
[1] Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
基金
中国国家自然科学基金;
关键词
Alkaline medium; Bismuth modification; Ethanol oxidation; Methanol oxidation; Platinum-ruthenium; FORMIC-ACID OXIDATION; FUEL-CELL; ANODE CATALYST; ELECTROCATALYSTS; NANOPARTICLES; RU; PD; NANOCATALYSTS; PROMOTION; BINARY;
D O I
10.1016/j.ijhydene.2012.12.091
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
In this work a facile synthesis for a high-performance PtRuBi/C catalyst was presented through a simple mixture of commercial PtRu/C and Bi(NO3)(3). Most of the Bimodified the PtRu particle surface via irreversible adsorption and deposition processes. X-ray photoelectron spectroscopy analysis indicated that Bi2O3 was the main form in the catalyst and that there exists an interaction between Bi2O3 and Pt. The current density of PtRuBi/C (1:1:0.2 for Pt:Ru:Bi) in the cyclic voltammograms for methanol or ethanol oxidation is over 2.6 times higher than that of PtRu/C. The anti-poisoning ability of this catalyst was also greatly improved. The Bi-containing catalyst had abundant oxygenated species and facilitated removal of poisonous intermediate species. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:3250 / 3256
页数:7
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