Combinatorial investigation of Pt-Ru-M as anode electrocatalyst for direct methanol fuel cell

被引：21

作者：

Chu, YH ^{[1
]}

Ahn, SW ^{[1
]}

Kim, DY ^{[1
]}

Kim, HJ ^{[1
]}

Shul, YG ^{[1
]}

Han, HS ^{[1
]}

机构：

[1] Yonsei Univ, Dept Chem Engn, Seoul 120749, South Korea

来源：

CATALYSIS TODAY | 2006年 / 111卷 / 3-4期

关键词：

DMFCs; Au/TiO2; ZSM-5; platinum-ruthenium; CO poisoning;

D O I：

10.1016/j.cattod.2005.10.022

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The addition of Au/TiO2 and zeolites as active components to PtRu/C electrode in DMFC was investigated by using combinatorial high-throughput- screening test. Addition of Au/TiO2 to PtRu/C electrode, especially in the ratio of PtRu/C: Au/TiO2 9:1, 8:2, 7:3, were effective to improve the performance of direct methanol fuel cell. The electrochemical properties of the prepared electrodes were compared using cyclic voltammetry, impedance spectroscopy and a single cell performance test of a direct methanol fuel cell (DMFC). The adsorbed CO on Pt might be easily oxidized on the surface of Au/TiO2 by interaction between PtRu/C and Au/TiO2. The addition of the solid acid proton conducting materials (ZSM-5) on PtRu/C anode leads to the high temperature operation. The cell performance was maintained over the cell temperature 120 degrees C (maximum current density was 200 mA/cm(2) at 160 degrees C) by the addition of ZSM-5 as proton conducting materials. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：176 / 181

页数：6

共 33 条

[1] Investigation of a direct methanol fuel cell based on a composite Nafion®-silica electrolyte for high temperature operation [J].