PREPARATION OF MnO2 NANOPARTICLES BY A SOLUTION BASED APPROACH FOR ELECTROCHEMICAL CAPACITOR

Ankur Soam () and Rahul Kumar
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Ankur Soam: Department of Mechanical Engineering, Siksha O Anusandhan, Deemed to be University Bhubaneswar, India
Rahul Kumar: #x2020;Centre for Energy Studies, Indian Institute of Technology Delhi, Delhi, India

Surface Review and Letters (SRL), 2020, vol. 27, issue 08, 1-6

Abstract: We report here the development of MnO2 nanostructure electrode for electrochemical energy storage application. MnO2 nanoparticles synthesized by a facile and efficient precipitation approach have been investigated for supercapacitor application. The structures and morphologies of MnO2 nanoparticles were systematically studied using X-ray diffraction, Raman spectroscopy and transmission electron microscopy. The synthesized nanoparticles are observed spherical in shape with uniform size distribution. The electrochemical properties were studied in two-electrode configuration by cyclic voltammetry process. A specific capacitance of 52.8F/g has been obtained for MnO2 nanoparticles at scan rate of 100mV/s. The electrode is able to deliver a power density of 0.66kW/kg and energy density of 1.8Wh/kg.

Keywords: MnO2 nanoparticles; solution-based process; supercapacitor; cyclic voltammetry (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1142/S0218625X19501993

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