Synergistic Effect of Fullerene-Capped Gold Nanoparticles on Graphene Electrochemical Supercapacitors

Virginia Yong, H. Thomas Hahn
2013 Advances in Nanoparticles  
We report the synthesis of graphene/fullerene-capped gold nanoparticle nanocomposite film which was used to construct supercapacitor electrodes. The fullerene-based self-assembled monolayers eScholarship provides open access, scholarly publishing services to the University of California and delivers a dynamic research platform to scholars worldwide. on gold nanoparticles (AuNPs) were attained via the fullerene(C 60 )-gold interaction. The fullerenecapped AuNPs effectively separated the graphene
more » ... arated the graphene sheets preventing aggregation. A synergistic effect was observed-the specific capacitance of graphene/fullerene-capped AuNP electrode is197 F/g, which is higher than that of graphene electrode (31 F/g), graphene/AuNP electrode (126 F/g), and graphene/fullerene electrode (118 F/g). The results render a novel route of synthesis and modification of graphene-based materials for the construction of electrochemical energy storage devices. ABSTRACT We report the synthesis of graphene/fullerene-capped gold nanoparticle nanocomposite film which was used to construct supercapacitor electrodes. The fullerene-based self-assembled monolayers on gold nanoparticles (AuNPs) were attained via the fullerene(C 60 )-gold interaction. The fullerene-capped AuNPs effectively separated the graphene sheets preventing aggregation. A synergistic effect was observed-the specific capacitance of graphene/fullerene-capped AuNP electrode is 197 F/g, which is higher than that of graphene electrode (31 F/g), graphene/AuNP electrode (126 F/g), and graphene/fullerene electrode (118 F/g). The results render a novel route of synthesis and modification of graphene-based materials for the construction of electrochemical energy storage devices.
doi:10.4236/anp.2013.21001 fatcat:cudmqy42i5eknb5caenvg5aiey