Platinum supported on mesoporous carbon as electrocatalyst for direct methanol fuel cells part I: Saccharides as carbon source

被引：0

作者：

Huang, Chia-Hung ^{[1
]}

Liu, Shyh-Jiun ^{[2
]}

Hwang, Weng-Sing ^{[1
]}

机构：

[1] Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan, Taiwan

[2] Department of Material Science, National University of Tainan, Tainan 700, Taiwan, Taiwan

来源：

Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao | 2010年 / 31卷 / 04期

关键词：

Direct methanol fuel cells (DMFC) - Mesoporous materials - Silica - Starch - Particle size - Carbon - Methanol - Catalyst supports - Methanol fuels - Platinum;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper shows the effect of graphitic character of mesoporous carbons (MCs) on the performances of MC supported catalysts for direct methanol fuel cells (DMFC). Two MC samples with hexagonal mesostructure were prepared from dextrose and soluble starch by nanoreplication method using mesoporous silica as a template. Structural characterizations revealed that both MCs exhibited large surface area and uniform mesopores. The Pt nanoparticles were supported on both MCs with very high dispersion, as the particle size was estimated under 3 nm. The MC supported Pt catalysts exhibited much higher performance, which may be attributed to the high surface area and uniform mesopore networks of MC. Catalytic performance towards ORR was compared with commercial carbon (Vulcan XC-72).

引用

页码：315 / 324