An Approach to Measure the Water Breakthrough in Porous Carbon Materials

被引：2

作者：

Schwager, M. ^{[1
]}

Dhanushkodi, S. R. ^{[2
]}

Merida, W. ^{[2
]}

机构：

[1] Univ British Columbia, Dept Mech Engn, Vancouver, BC V6T 1Z4, Canada

[2] Univ British Columbia, Clean Energy Res Ctr, Vancouver, BC V6T 1Z4, Canada

来源：

ECS ELECTROCHEMISTRY LETTERS | 2015年 / 4卷 / 04期

关键词：

MEMBRANE FUEL-CELLS; GAS-DIFFUSION LAYERS; LIQUID WATER; MICROPOROUS LAYER; PERFORMANCE LOSS; TRANSPORT; PEMFC; PRESSURE; VISUALIZATION; DURABILITY;

D O I：

10.1149/2.0071504eel

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report a new characterization method that detects liquid water breakthrough in porous materials by measuring changes in relative humidity and electrochemical impedance simultaneously. Unlike previous work based on capillary pressure, a four-chamber tool was developed to monitor the pressure and dew point temperature across porous transport layer materials. This approach can characterize the structure and water transport behavior of carbonaceous materials for polymer electrolyte fuel cells and electrolyzers. The changes in the dew point, impedance, and pressure provide a reliable and fast indicator to predict the liquid water breakthrough. (C) 2015 The Electrochemical Society.

引用

页码：F32 / F34

页数：3

共 22 条

[11] Direct measurement of the capillary pressure characteristics of water-air-gas diffusion layer systems for PEM fuel cells [J].

Gostick, Jeff T. ;

Ioannidis, Marios A. ;

Fowler, Michael W. ;

Pritzker, Mark D. .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (10) :1520-1523

[12] Impact of Liquid Water on Reactant Mass Transfer in PEM Fuel Cell Electrodes [J].

Gostick, Jeff T. ;

Ioannidis, Marios A. ;

Pritzker, Mark D. ;

Fowler, Michael W. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (04) :B563-B571

[13] Wettability and capillary behavior of fibrous gas diffusion media for polymer electrolyte membrane fuel cells [J].

Gostick, Jeff T. ;

Ioannidis, Marios A. ;

Fowler, Michael W. ;

Pritzker, Mark D. .

JOURNAL OF POWER SOURCES, 2009, 194 (01) :433-444

[14] On the role of the microporous layer in PEMFC operation [J].

Gostick, Jeff T. ;

Ioannidis, Marios A. ;

Fowler, Michael W. ;

Pritzker, Mark D. .

ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (03) :576-579

[15] Breakthrough/drainage pressures and X-ray water visualization in gas diffusion layer of PEMFC [J].

Kim, Jongrok ;

Je, Junho ;

Kim, TaeJoo ;

Kaviany, Massoud ;

Son, Sang Young ;

Kim, MooHwan .

CURRENT APPLIED PHYSICS, 2012, 12 (01) :105-108

[16] Ex situ visualization of liquid water transport in PEM fuel cell gas diffusion layers [J].

Litster, S ;

Sinton, D ;

Djilali, N .

JOURNAL OF POWER SOURCES, 2006, 154 (01) :95-105

[17] Evaluating Breakthrough Pressure in Gas Diffusion Layers of Proton Exchange Membrane Fuel Cells [J].

Ma Yue ;

Jia Li ;

Zhang Zhuqian ;

Wang Xia .

JOURNAL OF THERMAL SCIENCE, 2010, 19 (05) :459-464

[18] Characterisation of proton exchange membrane fuel cell (PEMFC) failures via electrochemical impedance spectroscopy [J].

Merida, W. ;

Harrington, D. A. ;

Le Canut, J. M. ;

McLean, G. .

JOURNAL OF POWER SOURCES, 2006, 161 (01) :264-274

[19] Measurement of capillary pressure property of gas diffusion media used in proton exchange membrane fuel cells [J].

Nguyen, T. V. ;

Lin, G. ;

Ohn, H. ;

Wang, X. .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2008, 11 (08) :B127-B131

[20] Water transport in liquid and vapour equilibrated Nafion™ membranes [J].

Romero, Tatiana ;

Merida, Walter .

JOURNAL OF MEMBRANE SCIENCE, 2009, 338 (1-2) :135-144

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