caa a22 4500 47581536X CHVBK 20180406123808.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1023/A:1026582814335 doi (NATIONALLICENCE)springer-10.1023/A:1026582814335 Concentration and potential distributions in the active layer of proton exchange membrane fuel cell electrodes [Elektronische Daten] [Y. Bultel, P. Ozil, R. Durand] This work is focussed on modelling mass and charge transfer limitations within an active layer considering uniform distribution of catalyst phase (classical model) or a more realistic discrete distribution (modified model). A model is proposed here based on soft-coupled equations describing diffusion, ionic ohmic drop and interfacial charge. It is applied to the practical case of oxygen reduction or hydrogen oxidation for PEM fuel cells. Simulation shows that the modified model has to be used for fast kinetics, that is, when the local limitations become predominant. In contrast, the classical flooded homogeneous model remains suitable when mass and charge transport resistances are negligible at the particle level. Kluwer Academic Publishers, 2000 diffusion nationallicence ionic/ohmic drop nationallicence interfacial charge nationallicence oxygen reduction nationallicence Bultel Y. Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, U.M.R. INPG-CNRS 5631 associated to UJF, ENSEEG, BP 75, 38402, St Martin d'Hères, France aut Ozil P. Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, U.M.R. INPG-CNRS 5631 associated to UJF, ENSEEG, BP 75, 38402, St Martin d'Hères, France aut Durand R. Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, U.M.R. INPG-CNRS 5631 associated to UJF, ENSEEG, BP 75, 38402, St Martin d'Hères, France aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/12(2000-12-01), 1369-1376 0021-891X 30:12<1369 2000 30 10800 https://doi.org/10.1023/A:1026582814335 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1026582814335 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bultel Y. Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, U.M.R. INPG-CNRS 5631 associated to UJF, ENSEEG, BP 75, 38402, St Martin d'Hères, France aut NATIONALLICENCE 700 1- Ozil P. Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, U.M.R. INPG-CNRS 5631 associated to UJF, ENSEEG, BP 75, 38402, St Martin d'Hères, France aut NATIONALLICENCE 700 1- Durand R. Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, U.M.R. INPG-CNRS 5631 associated to UJF, ENSEEG, BP 75, 38402, St Martin d'Hères, France aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/12(2000-12-01), 1369-1376 0021-891X 30:12<1369 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer