TY  - JOUR
A1  - Fazeli, Mohammadreza
A1  - Hinebaugh, James
A1  - Fishman, Zachary
A1  - Tötzke, Christian
A1  - Lehnert, Werner
A1  - Manke, Ingo
A1  - Bazylak, Aimy
T1  - Pore network modeling to explore the effects of compression on multiphase transport in polymer electrolyte membrane fuel cell gas diffusion layers
JF  - Journal of power sources : the international journal on the science and technology of electrochemical energy systems
N2  - Understanding how compression affects the distribution of liquid water and gaseous oxygen in the polymer electrolyte membrane fuel cell gas diffusion layer (GDL) is vital for informing the design of improved porous materials for effective water management strategies. Pore networks extracted from synchrotron-based micro-computed tomography images of compressed GDLs were employed to simulate liquid water transport in GDL materials over a range of compression pressures. The oxygen transport resistance was predicted for each sample under dry and partially saturated conditions. A favorable GDL compression value for a preferred liquid water distribution and oxygen diffusion was found for Toray TGP-H-090 (10%), yet an optimum compression value was not recognized for SGL Sigracet 25BC. SGL Sigracet 25BC exhibited lower transport resistance values compared to Toray TGP-H-090, and this is attributed to the additional diffusion pathways provided by the microporous layer (MPL), an effect that is particularly significant under partially saturated conditions. (C) 2016 Elsevier B.V. All rights reserved.
KW  - Pore network modeling
KW  - Synchrotron X-ray
KW  - Computed tomography
KW  - Liquid water distribution
KW  - Gas diffusion layer
KW  - Compression
Y1  - 2016
U6  - https://doi.org/10.1016/j.jpowsour.2016.10.039
SN  - 0378-7753
SN  - 1873-2755
VL  - 335
SP  - 162
EP  - 171
PB  - Elsevier
CY  - Amsterdam
ER  -