Effect of hydrophilic 2-D layered minerals in cathode catalyst layers on performance of polymer electrolyte membrane fuel cells

Hong Suk Kang, Kwan Woo Nam, Soonyong So, Keun Hwan Oh

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

In polymer electrolyte membrane fuel cell, the poor power performance of hydrocarbon (HC)-based membranes in low relative humidity conditions arises from the materials’ inherently inadequate proton conductivity under water-deficient conditions. In this study, we introduce boehmite into the catalyst layer as a water retention material to enhance the power performance of a HC-based membrane/electrode assembly (MEA) in low RH conditions. The addition of well-dispersed boehmite into the CCL increased the water concentration and consequently accelerated water back diffusion to the MEA at a low RH. The power performance also improved upon the addition of an optimal percent content of boehmite.

Original languageEnglish
Pages (from-to)455-460
Number of pages6
JournalJournal of Industrial and Engineering Chemistry
Volume78
DOIs
StatePublished - 25 Oct 2019

Bibliographical note

Publisher Copyright:
© 2019 The Korean Society of Industrial and Engineering Chemistry

Keywords

  • Boehmite
  • Catalyst layer
  • Hydrocarbon
  • Oxygen transport resistance
  • Polymer electrolyte membrane fuel cell

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