Add time:08/16/2019         Source:sciencedirect.com

A hierarchical hybrid structure of cuprous sulfide (cas 1308-78-7) (Cu2S) nanoparticles anchored graphene (Cu2S/RGO) has been successfully synthesized through a facile one-step hydrothermal method. The Cu2S nanoparticles with a size in the range of 10–30 nm are uniformly deposited onto the double sides of the RGO nanosheets to form a sandwich structure. Electrochemical tests demonstrate that the as-synthesized Cu2S/RGO hybrids have an improved specific capacitance of 208 F g−1 at a current density of 1.0 A g−1. The Cu2S/RGO exhibit higher cycling and rate performances than corresponding Cu2S nanoparticles mainly attributed to the unique structural properties of Cu2S/RGO hybrids, which combine a non-aggregation of graphene layers and well distribution of Cu2S nanoparticles.

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