Microwave heated polyol synthesis of Pt3Te/C catalysts

被引：26

作者：

Huang, Meihua ^{[1
]}

Li, Lirong ^{[1
]}

Guo, Yonglang ^{[1
]}

机构：

[1] Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 12期

关键词：

Anodic catalyst; Citrate; Ethanol oxidation; Microwave; PtTe/C; FUEL-CELL; ETHANOL ELECTROOXIDATION; METHANOL OXIDATION; NANOPARTICLE ELECTROCATALYST; SONOCHEMICAL PREPARATION; CARBON; METAL; PLATINUM; PT/C; DEPOSITION;

D O I：

10.1016/j.electacta.2008.12.047

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pt3Te/C nanoparticles supported on Vulcan XC-72 carbon were prepared within a few minutes under different reaction conditions by using a microwave-polyol method. Their physical and electrochemical characterization were carried out by X-ray diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectrometer (XPS), selected-area electron diffraction (SAED), H-2 adsorption-desorption, ethanol oxidation and CO stripping. TEM shows that the Pt3Te/C (pH 3) catalyst has uniform nanoparticles and is well dispersed with average particle size of about 2.8 nm. Electrochemical results show that the electrochemical activity Of Pt3Te/C catalysts synthesized at different pH values are in the order of pH 3 > pH 7 > pH 9 > pH 13. The Pt3Te/C catalyst (pH 3) is also better than the Pt3Te/C catalyst synthesized by formic acid as reductant. From a practical point of view, the microwave-polyol method at the pH value of 3 Could be an appropriate method for synthesizing nanocatalysts. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：3303 / 3308

页数：6

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