Influence of GDL coated with MPL containing CNTs on PEFC performance under low and high humidity conditions

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Gas diffusion layers (GDLs) coated with a hydrophobic microporous layer (MPL) have been commonly used to improve the performance of polymer electrolyte fuel cells (PEFCs). In the present study, a GDL coated with an MPL containing hydrophilic carbon nanotubes (CNTs) was developed to achieve further enhancement of the PEFC performance under both low and high humidity conditions. The less hydrophobic pores formed primarily by the CNTs are effective at conserving the membrane humidity, which enhances the performance under low humidity conditions. The MPL containing the CNTs is also effective at expelling excess water from the catalyst layer. This allows the maximum pore diameter to be decreased to 5 μm without reducing the ability to prevent flooding, resulting in a much higher performance under high humidity conditions compared with that for a hydrophobic MPL coated GDL.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 14
PublisherElectrochemical Society Inc.
Pages477-483
Number of pages7
Volume64
Edition3
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2014
Event14th Polymer Electrolyte Fuel Cell Symposium, PEFC 2014 - 226th ECS Meeting - Cancun, Mexico
Duration: Oct 5 2014Oct 9 2014

Other

Other14th Polymer Electrolyte Fuel Cell Symposium, PEFC 2014 - 226th ECS Meeting
CountryMexico
CityCancun
Period10/5/1410/9/14

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Kitahara, T., Nakajima, H., & Okamura, K. (2014). Influence of GDL coated with MPL containing CNTs on PEFC performance under low and high humidity conditions. In Polymer Electrolyte Fuel Cells 14 (3 ed., Vol. 64, pp. 477-483). Electrochemical Society Inc.. https://doi.org/10.1149/06403.0477ecst