A SOLID-STATE HYBRID SUPERCAPACITOR’S PERFORMANCE WITH CO2+-SUBSTITUTED NIMOO4 NANORODS

Author (s) : K.Saravanan, B.Kumar, P.Tamilselvi , D.Gopinath

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Abstract :
Ni(1)Co()MoO4 ( = 0, 0.1, 0.3, and 0.5 M) nanorods were made using the PA hydrothermal process, and they proved to be effective electrode materials in a hybrid supercapacitor. Different electrochemical techniques showed that their electrochemical characteristics were also influenced by the Ni/Co ratio. A remarkable specific capacity with a noteworthy retention capacity of 92% after 8000 repeated cycles at 10 Ag-1 was provided by Ni0.5Co0.5MoO4 ( = 0.5 M). The monometallic (NiMoO4) and bimetallic (Ni0.9Co0.1MoO4 and Ni0.7Co0.3MoO4) nanostructures were surpassed by the large surface area Ni0.5Co0.5MoO4. With an energy density of 16.2 Wh kg-1 and a power density of 725 W kg-1, the hybrid supercapacitor (Ni0.5Co0.5MoO4//activated carbon) produced a maximum Qcell of 53 Cg-1 at 1 Ag-1.

Keywords : Transition metal molybdate, Electrical conductivity, Cyclic stability, Hybrid supercapacitor

Conference Date : 17/09/2021

Pages : 183

Paper ID : IESMDT181