Cross-sectional insight in the water evolution and transport in polymer electrolyte fuel cells

被引：155

作者：

Hartnig, Christoph ^{[1
]}

Manke, Ingo

Kuhn, Robert

Kardjilov, Nikolay

Banhart, John

Lehnert, Werner

机构：

[1] Landesanstalt Umweltschutz Baden Wurttemberg, Ctr Solar Energy & Hydrogen Res, D-89081 Ulm, Germany

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 13期

关键词：

D O I：

10.1063/1.2907485

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The evolution of liquid water and its transport through the porous gas diffusion media in an operating fuel cell were investigated applying an experimental setup for high spatial resolution of 3 mu m. Fundamental aspects of cluster formation in hydrophobic/hydrophilic porous materials as well as processes of multiphase flow are addressed. The obtained water distributions provide a detailed insight in the membrane electrode assembly and the porous electrode with regard on the existence and transport of liquid water. In addition, the results approve transport theories used within the framework of percolation theory and demonstrate the need for adapted modeling approaches. (C) 2008 American Institute of Physics.

引用

收藏

页数：3

相关论文

共 17 条

[1] Carbon dioxide evolution patterns in direct methanol fuel cells [J].

Argyropoulos, P ;

Scott, K ;

Taama, WM .

ELECTROCHIMICA ACTA, 1999, 44 (20) :3575-3584

[2] The current status of fuel cell technology for mobile and stationary applications [J].

de Bruijn, F .

GREEN CHEMISTRY, 2005, 7 (03) :132-150

[3] Defect structure for proton transport in a triflic acid monohydrate solid [J].

Eikerling, M ;

Paddison, SJ ;

Pratt, LR ;

Zawodzinski, TA .

CHEMICAL PHYSICS LETTERS, 2003, 368 (1-2) :108-114

[4] Spatial distribution of avalanches in invasion percolation: their role in fingering [J].

Ferer, M ;

Bromhal, GS ;

Smith, DH .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2002, 311 (1-2) :5-22

[5] Structural evolution of water swollen perfluorosulfonated ionomers from dry membrane to solution [J].

Gebel, G .

POLYMER, 2000, 41 (15) :5829-5838

[6]

Geiger AB, 2003, FUEL CELLS, V2, P92

[7] Transport in proton conductors for fuel-cell applications: Simulations, elementary reactions, and phenomenology [J].

Kreuer, KD ;

Paddison, SJ ;

Spohr, E ;

Schuster, M .

CHEMICAL REVIEWS, 2004, 104 (10) :4637-4678

[8] Water sorption, desorption and transport in Nafion membranes [J].

Majsztrik, Paul W. ;

Satterfield, M. Barclay ;

Bocarsly, Andrew B. ;

Benziger, Jay B. .

JOURNAL OF MEMBRANE SCIENCE, 2007, 301 (1-2) :93-106

[9] Investigation of water evolution and transport in fuel cells with high resolution synchrotron x-ray radiography [J].

Manke, I. ;

Hartnig, Ch. ;

Gruenerbel, M. ;

Lehnert, W. ;

Kardjilov, N. ;

Haibel, A. ;

Hilger, A. ;

Banhart, J. ;

Riesemeier, H. .

APPLIED PHYSICS LETTERS, 2007, 90 (17)

[10] Trapping thresholds in invasion percolation [J].

Paterson, L ;

Sheppard, AP ;

Knackstedt, MA .

PHYSICAL REVIEW E, 2002, 66 (05) :6-056122