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Hindi Preparation and performance of carbon dot stabilized copper sulphide/carbon nanotubes hybrid composite as super capacitor electrode materials
*Corresponding Author:
Copyright: © 2021 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Carbon dot stabilized copper sulphide/carbon nanotube
(CD@CuS/CNT) hybrid composite was synthesized by a
simple one-pot hydrothermal reaction at 180℃ using copper sulphate and sodium thiosulphate as Cu and S sources. The
microstructures and morphologies of hybrid composites were
characterized by X-ray diffraction (XRD), Raman spectroscopy (Raman), scanning electron microscope (SEM) and transmission electron microscope (TEM). Moreover, a highperformance asymmetric supercapacitor device was assembled to improve the electrochemical performance of CuS as well as carbon based supercapacitors1. The CD@CuS/CNT hybrid composite exhibited a maximum specific capacitance of 736.1F•g-1 at the current density of 1A•g-1. Furthermore, the
CD@CuS/CNT hybrid composite showed good cycling stability with more than 92% capacitance retention after 5000 cycles. These excellent results suggested that CD@CuS/CNT hybrid composite has promising application potential for supercapacitors2.
