Carbon dioxide evolution patterns in direct methanol fuel cells

被引：155

作者：

Argyropoulos, P ^{[1
]}

Scott, K ^{[1
]}

Taama, WM ^{[1
]}

机构：

[1] Univ Newcastle Upon Tyne, Dept Chem & Proc Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

ELECTROCHIMICA ACTA | 1999年 / 44卷 / 20期

基金：

英国工程与自然科学研究理事会;

关键词：

fuel cell; direct methanol; solid polymer electrolyte; flow visualisation; gas management; two-phase flow;

D O I：

10.1016/S0013-4686(99)00102-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Carbon dioxide gas management is an important issue in the development of the liquid feed direct methanol fuel cell. Data from a flow visualisation study, designed to study carbon dioxide gas evolution and flow behaviour are reported. Two different cell designs were used, one based on a simple parallel Flow channel concept and the second based on a heat exchanger design concept. With the aid of a high-speed video camera, appropriate computer software and transparent acrylic cells, gas evolution was recorded in a fuel cell working environment. The influence of current density and liquid flow rate are considered. Gas evolution mechanisms and gas management techniques are discussed. The effect of scale-up on the power performance of the parallel flow channel cell is reported. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：3575 / 3584

页数：10

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