MRS Proceedings

Articles

Facile synthesis of polypyrrole/graphene nanosheet-based nanocomposites as catalyst support for fuel cells

2010 MRS Fall Meeting.

Burcu Sanera1, Selmiye Alkan Gürsela1 and Yuda Yürüma1

a1 Faculty of Engineering and Natural Sciences, Sabanci University Orhanli, Tuzla, Istanbul 34956, Turkey

ABSTRACT

The integration of catalyst metals into the graphene-based composites can be a new way to ensure thermal and electronic conductivities of the catalyst support materials in polymer electrolyte membrane fuel cells. In this work, graphene nanosheets were synthesized via a mild and safer chemical route including three major steps: graphite oxidation, ultrasonic treatment and chemical reduction. Then, polypyrrole was coated on graphene nanosheets by in-situ polymerization to fabricate polypyrrole/graphene nanosheet-based nanocomposites as the catalyst supports. Pt nanoparticles were uniformly dispersed on the surface of nanocomposites by sonication technique.

Key Words:

  • chemical reaction;
  • polymerization;
  • surface chemistry
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