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  • Title: Supercapacitor electrodes with especially high rate capability and cyclability based on a novel Pt nanosphere and cysteine-generated graphene.
    Author: Zhang D, Zhang X, Chen Y, Wang C, Ma Y, Dong H, Jiang L, Meng Q, Hu W.
    Journal: Phys Chem Chem Phys; 2012 Aug 21; 14(31):10899-903. PubMed ID: 22772748.
    Abstract:
    In the present work, supercapacitors based on graphene/Pt films show especially high rate capability (120 F g(-1) even at 50 A g(-1)) and cyclability (no attenuation over 10,000 cycles) and peculiar nanosphere morphology after electrochemical cycling. Furthermore, supercapacitors based on the graphene powder with a binder exhibit high specific capacitance (249 F g(-1) at 0.1 A g(-1)), long cycle life (no attenuation over 40,000 cycles) and high rate capability (150 F g(-1) even at 50 A g(-1)), which are much better than those of most graphene electrode materials. These indicate the great potential of the cysteine reduced graphene electrodes in energy storage.
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