Microfluidic hydrogen fuel cell with a liquid electrolyte

被引：78

作者：

Jayashree, Ranga S.

Mitchell, Michael

Natarajan, Dilip

Markoski, Larry J.

Kenis, Paul J. A. ^{[1
]}

机构：

[1] Univ Illinois, Dept Chem & Biomol Engn, Urbana, IL 61801 USA

[2] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA

[3] INI Power Syst, Cary, NC 27513 USA

来源：

LANGMUIR | 2007年 / 23卷 / 13期

关键词：

D O I：

10.1021/la063673p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the design and characterization of a microfluidic hydrogen fuel cell with a flowing sulfuric acid solution instead of a Nafion membrane as the electrolyte. We studied the effect of cell resistance, hydrogen and oxygen flow rates, and electrolyte flow rate on fuel cell performance to obtain a maximum power density of 191 mW/cm(2). This flowing electrolyte design avoids water management issues, including cathode flooding and anode dry out. Placing a reference electrode in the outlet stream allows for independent analysis of the polarization losses on the anode and the cathode, thereby creating an elegant catalyst characterization and optimization tool.

引用

页码：6871 / 6874

页数：4

共 28 条

[1] Recent developments in polymer electrolyte fuel cell electrodes [J].