High electrochemical performance in asymmetric supercapacitors using MWCNT/nickel sulfide composite and graphene nanoplatelets as electrodes

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Abstract

The electrochemical performance of asymmetric supercapacitors (ASCs) using MWCNT/NiS and graphene nanoplatelets as the positive and negative electrode, respectively, are reported. Nickel sulfide nanoparticles can be decorated on multiwall carbon nanotubes using a hydrothermal synthesis process, with graphene nanoplatelets obtained via a chemical route. The fabricated ACSs were operated over a potential window of 1.4 V with a specific capacitance of 181 F g-1 observed at 1 A g-1. The ASCs were cycled at 2 A g-1 showing 92% retention of initial capacitance after 1000 cycles. This journal is

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Singh, A., Roberts, A. J., Slade, R. C. T., & Chandra, A. (2014). High electrochemical performance in asymmetric supercapacitors using MWCNT/nickel sulfide composite and graphene nanoplatelets as electrodes. Journal of Materials Chemistry A, 2(39), 16723–16730. https://doi.org/10.1039/c4ta02870h

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