Investigation of mass transport in gas diffusion layer at the air cathode of a PEMFC

被引:107
作者
Bultel, Y
Wiezell, K
Jaouen, F
Ozil, P
Lindbergh, G
机构
[1] Ecole Natl Super Electrochim & Electrome Grenoble, Inst Natl Polytech Grenoble, UJF,CNRS,UMR 5631, LEPMI, F-38402 St Martin Dheres, France
[2] Royal Inst Technol KTH, Dept Chem Engn & Technol, SE-10044 Stockholm, Sweden
关键词
PEMFC; impedance; gas diffusion layer; mass transport; modeling;
D O I
10.1016/j.electacta.2005.05.007
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
In a polymer electrolyte membrane fuel cell (PEMFC), slow diffusion in the gas diffusion electrode may induce oxygen depletion when using air at the cathode. This work focuses on the behavior of a single PEMFC built with a Nafion(R) based MEA and an E-TEK gas diffusion layer and fed at the cathode with nitrogen containing 5, 10 and 20% of oxygen and working at different cell temperatures and relative humidities. The purpose is to apply the experimental impedance technique to cells wherein transport limitations at the cathode are significant. In parallel, a model is proposed to interpret the polarization curves and the impedance diagrams of a single PEMFC. The model accounts for mass transport through the gas diffusion electrode. It allows us to qualitatively analyze the experimental polarization curves and the corresponding impedance spectra and highlights the intra-electrode processes and the influence of the gas diffusion layer. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:474 / 488
页数:15
相关论文
共 32 条
[1]   Analysis of performance losses in polymer electrolyte fuel cells at high current densities by impedance spectroscopy [J].
Andreaus, B ;
McEvoy, AJ ;
Scherer, GG .
ELECTROCHIMICA ACTA, 2002, 47 (13-14) :2223-2229
[2]   Catalyst gradient for cathode active layer of proton exchange membrane fuel cell [J].
Antoine, O ;
Bultel, Y ;
Ozil, P ;
Durand, R .
ELECTROCHIMICA ACTA, 2000, 45 (27) :4493-4500
[3]   Oxygen reduction reaction kinetics and mechanism on platinum nanoparticles inside Nafion® [J].
Antoine, O ;
Bultel, Y ;
Durand, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 499 (01) :85-94
[4]   Polymer electrolyte membrane fuel cell modelling d.c. and a.c. solutions [J].
Bautista, M ;
Bultel, Y ;
Ozil, P .
CHEMICAL ENGINEERING RESEARCH & DESIGN, 2004, 82 (A7) :907-917
[5]  
BIRD RB, 1960, TRANSPORT PHENOMENA, P505
[6]   Modeling impedance diagrams of active layers in gas diffusion electrodes: diffusion, ohmic drop effects and multistep reactions [J].
Bultel, Y ;
Genies, L ;
Antoine, O ;
Ozil, P ;
Durand, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2002, 527 (1-2) :143-155
[7]  
BULTEL Y, 2003, 203 M EL SOC PAR APR
[8]  
de Levie R, 1967, Advances in Electrochemical Science and Engineering, P329
[9]   Electrochemical impedance of the cathode catalyst layer in polymer electrolyte fuel cells [J].
Eikerling, M ;
Kornyshev, AA .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 475 (02) :107-123
[10]   Effect of membrane characteristics and humidification conditions on the impedance response of polymer electrolyte fuel cells [J].
Freire, TJP ;
Gonzalez, ER .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 503 (1-2) :57-68