首页|Construction of CoMoO4 nanorods wrapped by Ni-Co-S nanosheets for high-performance supercapacitor
Construction of CoMoO4 nanorods wrapped by Ni-Co-S nanosheets for high-performance supercapacitor
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NSTL
Elsevier
? 2022 Elsevier B.V.In this study, the Ni-Co-S nanosheets have been grown onto CoMoO4 nanorods by the electrodeposition method (CoMoO4 @NCS). The supercapacitor performance of the CoMoO4 @NCS composites can be greatly promoted due to the unique core-shell structure. The addition of amorphous Ni-Co-S nanosheets can provide much more electrochemical active sites, thereby enhancing the capacitive capability. The CoMoO4 @NCS composites show fairly high specific capacitance of 1276 F g?1 at 0.5 A g?1, which is twice that of pristine CoMoO4 nanorods (604 F g?1). The composites also present remarkable cycling characteristics. The specific capacitance retention reserves 98 % after 7000 cycles at 1 A g?1. Furthermore, the asymmetric supercapacitor (CoMoO4 @NCS//AC) device exhibits high energy density of 48.3 Wh kg?1. Notably, the fabricated device also presents outstanding stability with only 4% capacitance loss rate after 10000 cycles. The results indicate that the CoMoO4 @NCS composites have great potential for energy storage materials.
NSTL
Elsevier
