Investigation of the influence of GDL properties on the water balance by means of neutron radiography.

被引：2
|
作者：
Klages, Merle [1 ]
Krueger, Philipp [1 ]
Haussmann, Jan [1 ]
Markoetter, Henning
Arlt, Tobias [2 ]
Hartnig, Christoph [1 ]
Kardjilov, Nikolay [3 ]
Banhart, John [4 ,5 ,6 ,7 ]
Manke, Ingo [8 ]
Scholta, Joachim
机构：
[1] Zentrum Sonnenenergie & Wasserstoff Forsch, Abt Elektrochem Verfahren & Modellierung, Ulm, Germany
[2] Ferdinand Braun Inst, Berlin, Germany
[3] HZB Helmholtz Zentrum Berlin Mat & Energie, Abt Werkstoffe, Neutronen Tomog Instruments CONRAD, Berlin, Germany
[4] Helmholtz Zentrum Berlin Mat & Energie, Abt Werkstoffe, Berlin, Germany
[5] Helmholtz Zentrum Berlin Mat & Energie, Bereichs Strukturforsch, Berlin, Germany
[6] Tech Univ Berlin, Inst Werkstoffwissensch & Technol, D-1000 Berlin, Germany
[7] Fraunhofer Inst Fertigungstechn & Mat Forsch Brem, Bremen, Germany
[8] Helmholtz Zentrum Berlin Mat & Energie, Inst Angew Mat Forsch, Fachgrp Bildgebende Verfahren, Berlin, Germany
来源：
MATERIALS TESTING | 2010年 / 52卷 / 10期
关键词：
LOCAL CURRENT DISTRIBUTION; IMAGING TECHNIQUE; DIFFUSION LAYER; PERFORMANCE; ELECTRODES; PEMFC;
D O I：
10.3139/120.110176
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Neutron radiography has been used for a considerable time to study the in-situ water distribution of low temperature polymer electrolyte fuel cells (PEMFC). One important application is the investigation of the effects of different gas diffusion layer (GDL) properties, like porosity or hydrophobicity, on the water management in the fuel cell. Within this framework, another focus is set on the study of degradation effects of these porous layers. A new method for ex-situ-degradation based on hydrogen peroxide was developed to analyse the controlled ageing. By means of neutron radiography the changes in the water balance of the fuel cell caused by the modification of GDL properties are analyzed.
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页码：718 / 724
页数：7
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