Green and facile synthesis of graphene supported Pt nanoparticles for oxygen reduction reaction in polymer electrolyte fuel cells

Document Type : Original Article

Authors

Department of applied chemistry.islamic azad university. tehran north branch

Abstract

IIn this work we report a facile and green approach to synthesis of graphene nanosheets(GNS) supported Pt nanoparticles (Pt/GNS),in which graphene acts as a high surface area and conductive host for Pt nanoparticles for oxygen reduction reaction in fuel cells. Several phytochemicals extracted from different natural leaves of plants are employed as green and eco-friendly reducing agents in the synthesis of various silver, gold, platinum, and copper nanoparticles. In this study, Cherry leaf extracts were employed as a green reducing agent to reduce graphene oxide and Pt nanoparticles. The prepared Pt/GNS exhibits greatly enhanced electrochemical performance than commercial (ElectroChem Pt/C). These are attributed to the much graphitized degree of GNS in comparison to carbon black and the improved Pt-carbon interaction in Pt/GNS,high surface area and electrical conductivity of graphene support in Pt/GNS.

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References

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Applied Chemistry Today
Volume 12, Issue 45
December 2017
Pages 31-40

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