Pt decorated PdFe/C: Extremely High Electrocatalytic Activity for Methanol Oxidation

被引：0
|
作者：
Wang, Hui [1 ]
Ji, Shan [2 ]
Wang, Wei [1 ]
Linkov, Vladimir [1 ,2 ]
Pasupathi, Sivakumar [2 ]
Wang, Rongfang [1 ]
机构：
[1] NW Normal Univ, Coll Chem & Chem Engn, Key Lab Gansu Polymer Mat,Minist Educ, Key Lab Eco Environm Related Polymer Mat, Lanzhou 730070, Peoples R China
[2] Univ Western Cape, S African Inst Adv Mat Chem, ZA-7535 Cape Town, South Africa
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2012年 / 7卷 / 04期
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
Electrocatalyst; Methanol-oxidation; Pt-decorated; Direct methanol fuel cell; OXYGEN REDUCTION REACTION; FUEL-CELL REACTIONS; CARBON NANOTUBES; ALLOY ELECTROCATALYSTS; CATALYSTS; CO; ELECTROOXIDATION; NANOPARTICLES; FE; TEMPERATURE;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A carbon supported Pt-decorated PdFe alloy nano-core catalysts (Pt-PdFe/C) for methanol oxidation is prepared via metathetical reaction between PdFe alloy nanoparticles (deposited on carbon) and PtCl42- in aqueous solution. Morphology and composition of the synthesized catalyst are characterized by Transmission Electron Microscope and X-ray diffraction. Experimental results show the electrochemical active surface area of the Pt-PdFe/C catalyst is much larger than those of the PdFe/C and Pt/C catalysts. Furthermore, the mass specific peak current is 1.01 A mg(-1) for methanol oxidation on the Pt-PdFe/C electrode, an increase by a factor of 3.5 times and 12.6 times as compared to PtRu/C and Pt/C, respectively. The facile fabrication and high electrochemical performance of Pt-PdFe/C highlight its potential application as anode for DMFCs.
引用
收藏
页码：3390 / 3398
页数：9
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