NDLI: Effects of cathode catalyst layer design parameters on cold start behavior of polymer electrolyte fuel cells (PEFCs)

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Effects of cathode catalyst layer design parameters on cold start behavior of polymer electrolyte fuel cells (PEFCs)

Content Provider	Semantic Scholar
Author	Ko, Johan Ju, Hyunchul
Copyright Year	2013
Abstract	Abstract We present a theoretical study on the effects of key catalyst layer (CL) design parameters on the cold start behavior of a polymer electrolyte fuel cell (PEFC) using a three-dimensional transient cold start model developed in a previous study [1] , [2] . Among several CL design parameters, we adopt the ionomer fraction (ɛI) and weight ratio of Pt to carbon support (wt%Pt–C) in the cathode CL as CL design variables for this study. Therefore, other design parameters such as CL thickness and the oxygen reduction reaction (ORR) kinetic parameter are accordingly adjusted due to changes in ɛI and wt%Pt–C for cold start simulations. The calculated results confirm that these two design parameters provide control of the ice storage capacity and water absorption potential of the cathode CL, and consequently have a substantial influence on the cold start behavior of a PEFC. We provide a guideline to design and optimize a cathode CL and membrane electrode assembly (MEA) for improved PEFC cold start capability.
Starting Page	682
Ending Page	691
Page Count	10
File Format	PDF HTM / HTML
DOI	10.1016/j.ijhydene.2012.05.154
Alternate Webpage(s)	https://dspace.inha.ac.kr/bitstream/10505/31540/1/33159.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.ijhydene.2012.05.154
Volume Number	38
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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