Defective graphene foam

A platinum catalyst support for PEMFCs

Jianfeng Liu, Daio Takeshi, Kazunari Sasaki, Stephen Matthew Lyth

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Gram-scale synthesis of defective graphene foam from low-cost precursors is reported as a catalyst support material for platinum in fuel cell cathodes. The material was produced by combustion of sodium ethoxide, followed by washing and heat-treatment in various gases. The BET surface area is higher than 1500 m2/g. The defects in the material result in excellent distribution of platinum nanoparticles on the surface. The electrochemical performance is compared with platinum-decorated carbon black and commercially obtainable graphene using cyclic voltammetry, linear sweep voltammetry, andmembrane electrode assemblies. Pt-decorated grapheme foam has larger electrochemical surface area (101 m2/g) and higher mass activity (176 A/gPt). However, durability and fuel cell power density still require improvements. This graphene foam is a potentially useful catalyst support, especially for use in polymer electrolyte membrane fuel cells.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume161
Issue number9
DOIs
Publication statusPublished - Jan 1 2014

Fingerprint

Graphite
Proton exchange membrane fuel cells (PEMFC)
Platinum
Catalyst supports
foams
Graphene
fuel cells
Foams
graphene
platinum
catalysts
Fuel cells
cell cathodes
Soot
washing
Voltammetry
Carbon black
cells
durability
Washing

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

Defective graphene foam : A platinum catalyst support for PEMFCs. / Liu, Jianfeng; Takeshi, Daio; Sasaki, Kazunari; Lyth, Stephen Matthew.

In: Journal of the Electrochemical Society, Vol. 161, No. 9, 01.01.2014.

Research output: Contribution to journalArticle

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