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20-03-2019 | Issue 8/2019

Journal of Materials Science: Materials in Electronics 8/2019

Development of asymmetric device using Co3(PO4)2 as a positive electrode for energy storage application

Journal:
Journal of Materials Science: Materials in Electronics > Issue 8/2019
Authors:
Navaneethan Duraisamy, Numan Arshid, Kavitha Kandiah, Javed Iqbal, Prabhakarn Arunachalam, Gopi Dhanaraj, K. Ramesh, S. Ramesh
Important notes
Navaneethan Duraisamy and Numan Arshid have contributed equally to this work.

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Abstract

A facile method for synthesis of cobalt phosphate (Co3(PO4)2) using sonic-waves irradiation. The synthesised Co3(PO4)2 samples are exhibited amorphous nature with anisotropic nano/micro rectangular morphologies. The synthesized Co3(PO4)2 samples with diverse sonication times (10 min, 1 h, 2 h and 3 h) revealed the specific capacity of 180.40, 203.40, 171.58 and 153.30 C/g at a current density of 2 A/g. An improved electrochemical activities of Co3(PO4)2 is observed with the sonication time of 1 h, which may due to the influence of fewer aggregation, lesser flakes damage and provide a more reactive sites for rapid diffusion of the electrolyte ions into the electrode surface. A fabricated supercapattery device using Co3(PO4)2 (1 h sample) as positive and activated carbon as negative electrodes, where revealed the specific capacity of 174 C/g at a current density of 0.4 A/g with a specific energy and power of 35.5 Wh/kg and 293.9 W/kg.

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