Microwave synthesis and properties of nanodiamond supported PtRu electrocatalyst for methanol oxidation

被引：22
|
作者：
Lu, R. [1 ]
Zang, J. B. [1 ]
Wang, Y. H. [1 ]
Zhao, Y. L. [1 ]
机构：
[1] Yanshan Univ, Coll Mat Sci & Engn, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2012年 / 60卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Undoped nanodiamond; Microwave; Platinum; Ruthenium; Electrocatalyst; DIAMOND THIN-FILMS; CARBON NANOTUBES; FUEL-CELLS; NANOPARTICLES; PLATINUM; ELECTRODES; CATALYSTS; ELECTROOXIDATION; POWDER; OXYGEN;
D O I：
10.1016/j.electacta.2011.11.068
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Undoped nanodiamond (ND) supported PtRu (PtRu/ND) electrocatalyst was prepared by a microwave heating polyol method. The alloy structures, morphology and composition of the PtRu/ND catalyst were characterized by X-ray diffraction, high-resolution transmission electron microscopy and energy-dispersive spectroscopy. The electrocatalytic activities of the PtRu/ND catalyst for methanol oxidation were also investigated by cyclic voltammetry and chronoamperometry. It was found that Ru was partly dissolved in the face-centered cubic Pt lattice. The PtRu nanoparticles were small and uniform with the size of 2-4 nm, and highly dispersed on ND supports. The electrochemical measurements demonstrated that PtRu/ND catalyst exhibited higher activity and stability for methanol electrooxidation reaction than Pt/ND catalyst. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：329 / 333
页数：5
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