Preparation of PtNi hollow nanospheres for the electrocatalytic oxidation of methanol

被引：113

作者：

Zhou, Xin-Wen ^{[1
]}

Zhang, Rong-Hua ^{[1
]}

Zhou, Zhi-You ^{[2
]}

Sun, Shi-Gang ^{[2
]}

机构：

[1] China Three Gorges Univ, Dept Chem, Coll Chem & Life Sci, Yichang 443002, Peoples R China

[2] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surface, Xiamen 361005, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 14期

关键词：

Hollow PtNi nanospheres; Successive-reduction; Methanol electrocatalytic oxidation; Fuel cell; BOROHYDRIDE FUEL-CELL; ALLOY NANOPARTICLES; FACILE SYNTHESIS; ELECTROOXIDATION; CATALYSTS; NI; NANOMATERIALS; PT/C; SIZE; XPS;

D O I：

10.1016/j.jpowsour.2011.02.088

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：

We report the synthesis and characterization of hollow PtNi nanospheres by chemical successive-reduction method. The results of X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) account for the alloy formation between Pt and Ni and electronic structure change of Pt in the alloy. The prepared nanospheres show a high activity and stability for electrocatalytic oxidation of methanol as compared to the commercial Pt/C catalyst and the co-reduced PtNi nanoparticles. The reasons of the high electrocatalytic activity of the hollow PtNi nanospheres were discussed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：5844 / 5848

页数：5

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