Facile synthesis of polypyrrole/graphene nanosheet-based nanocomposites as catalyst support for fuel cells
Saner Okan, Burcu and Alkan Gürsel, Selmiye and Yürüm, Yuda (2011) Facile synthesis of polypyrrole/graphene nanosheet-based nanocomposites as catalyst support for fuel cells. In: 2010 MRS Fall Meeting, Boston, Massachusetts
Official URL: http://dx.doi.org/10.1557/opl.2011.126
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.
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