Abstract
Graphene–cadmium sulfide nanocomposite (G–CdS) was prepared by one pot solvothermal route. Graphite oxide (GO) was well dispersed in dimethyl sulfoxide (DMSO) solution of ions Cd2+, where DMSO acted as a sulphide source as well as reducing agent, resulting in the formation of G–CdS nanocomposite and simultaneous reduction of GO to graphene nanosheets (GNs). The size of CdS nanoparticles (NPs) in G–CdS was around 10 nm, and the large 2D flexible atom-thin layer of graphene made it easier to control the distribution of CdS NPs. The electrochemical performances of G–CdS nanocomposite were investigated by cyclic voltammetry and charge/discharge techniques. It showed that the G–CdS nanocomposite had a high electrochemical activity, durability, and stability. And the electronic conductivity of nanocomposite was improved and the stability of electrode was enhanced because of the introduction of GNs.
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