Measurement of Hydrogen Crossover During PEMFC Operation

被引：3

作者：

Jeong, Jaejin ^{[1
]}

Jeong, Jaehyeun ^{[1
]}

Kim, Saehoon ^{[2
]}

Ahn, Byungki ^{[2
]}

Ko, Jaijoon ^{[2
]}

Park, Kwonpil ^{[1
]}

机构：

[1] Sunchon Natl Univ, Dept Chem Engn, 315 Maegok Dong, Sunchon 540742, Jeonnam, South Korea

[2] HMC Eco Technol Res Inst, Youngin Si 446912, Gyeonggi, South Korea

来源：

KOREAN CHEMICAL ENGINEERING RESEARCH | 2015年 / 53卷 / 04期

关键词：

PEMFC; Hydrogen Crossover; Gas Chromatograph; Degradation; Membrane;

D O I：

10.9713/kcer.2015.53.4.412

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

To evaluate the performance and durability of membrane, measurement of hydrogen crossover is needed during PEMFC(Proton Exchange Membrane Fuel Cells) operation. In this work, concentration of hydrogen at cathode was analysed by gas chromatograph during operation suppling with air instead of inert gas into the cathode. The hydrogen permeated through membrane reacted with oxygen at cathode and then the concentration of hydrogen was lower than in case inert gas was supplied. Hydrogen concentration decreased as the flow rate of air increased at cathode. Increase of temperature, humidity and pressure of anode gas enhanced the hydrogen concentration at cathode. The hydrogen concentration was about 5.0 ppm at current density of 120 mA/cm(2) during general PEMFC operation.

引用

页码：412 / 416

页数：5

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