Measurement of Gas Transport Characteristics in PEFC Electrolyte Membrane by Using Microprobes

被引：7
作者：
Ohishi, Masato [1 ]
Ono, Yoshitaka
Fushinobu, Kazuyoshi [1 ]
机构：
[1] Tokyo Inst Technol, Dept Mech & Control Engn, Tokyo 1528552, Japan
来源：
NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING | 2013年 / 17卷 / 02期
关键词：
polymer electrolyte fuel cell (PEFC); gas transport; microprobe; ION-EXCHANGE MEMBRANES; IN-SITU ANALYSIS; PEM FUEL-CELL; PERMEATION PROPERTIES; HYDROGEN PERMEATION; OXYGEN PERMEATION; PARTIAL-PRESSURE; SPE METHOD; NAFION; DEGRADATION;
D O I：
10.1080/15567265.2012.747578
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Transport resistance of reactant gases in the membrane of polymer electrolyte fuel cells (PEFCs) was investigated by measuring the mass transport amount of gas species with microprobes inserted along the membrane thickness direction. The diffusion resistance inside the membrane and the interfacial transport resistance including dissolution resistance were separately evaluated by combining experiments and a theoretical model. It was found that diffusion resistance decreased with an increase in gas humidity and temperature. The measurement technique using the microprobe is a useful tool for understanding the gas transport phenomena in the membrane.
引用
收藏
页码：69 / 78
页数：10
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