Graphene quantum dots-induced morphological changes in CuCo2S4 nanocomposites for supercapacitor electrodes with enhanced performance
Applied Surface Science(2019)
摘要
•Graphene quantum dots induce morphology changes of CuCo2S4 by turning the smooth CuCo2S4 surface to particle-constituting hierarchical nanostructure.•The morphology change assists the electrochemical cycling processes as well as the ion diffusion and charge transfer kinetics for improved supercapacitor performances.•GQD/CuCo2S4 electrodes demonstrate a specific capacitance of 1725 F g−1 and retain 90% capacitance after 10,000 cycles.
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关键词
GQDs,CuCo2S4,Supercapacitors,Morphology change,Electrodes
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