Platinum nano-cluster thin film formed on glassy carbon and the application for methanol oxidation

被引：20

作者：

Chang, Gang

Oyama, Munetaka ^{[1
]}

Hirao, Kazuyuki

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Chem Mat, Nishikyo Ku, Kyoto 6158510, Japan

[2] Kyoto Univ, Int Innovat Ctr, Div Res Initiat, Nishikyo Ku, Kyoto 6158520, Japan

来源：

THIN SOLID FILMS | 2007年 / 515卷 / 7-8期

关键词：

platinum nano-cluster film; methanol oxidation; electrocatalysis; nano-materials; PARTICLE-SIZE; NANOPARTICLES; SURFACES;

D O I：

10.1016/j.tsf.2006.09.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As an interesting platinum nanostructured material, a Pt nano-cluster film (PtNCF) attached on glassy carbon (GC) is reported. Through the reduction of PtCl42- by ascorbic acid in the presence of GC substrate, a Pt thin continuous film composed of small nano-clusters which had a further agglomerated nanostructure of small grains could be attached on the GC surface. It was found that the electrocatalytic ability of PtNCF for the methanol oxidation was apparently higher than those of the Pt nano-clusters dispersedly attached on GC or indium in oxides. In addition, the electrocatalytic performance of PtNCF per Pt amount was superior to that of Pt black on GC. These results indicate that, in spite of the continuous nanostructures, nano-grains of PtNCF worked effectively for the catalytic electrolysis. The present PtNCF can be regarded as an interesting thin film material, which can be easily prepared by one-step chemical reduction. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3311 / 3314

页数：4

共 9 条

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