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Nickel Cobaltite Nanostructures with Enhanced Supercapacitance Activity by Neha Garg; Mrinmoyee Basu; Ashok Kumar Ganguli is a Materials Science article available to read on EtoBox.

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Herein, we report a strategy for controlled synthesis of functional nanomaterials desired for energy conversion and power storage applications. NiCo 2 O 4 nanostructures with square sheets, hexagonal sheets and spherical form have been synthesized using a solvothermal route by tuning of reaction conditions as well as selection of hydrolyzing agents. The synthesized nanostructures exhibited significant shape dependent electrochemical behavior with improved supercapacitance as well as good electrocatalytic properties towards oxygen evolution reaction. Among all the three morphologies, the square sheets, assembled from nanoparticles ~ 5 nm diameter, exhibited higher specific capacitance with good stability. Due to high surface area (~100 m 2 /g) and mesoporous nature of the square sheets, NiCo 2 O 4 reveals better pseudocapacitance.

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Author

Neha Garg; Mrinmoyee Basu; Ashok Kumar Ganguli

Publisher

American Chemical Society (ACS)

Published

2014

Language

EN

Field

Materials Science (Physical Sciences)