Implication of charge transfer property on the supercapacitive performance of manganese oxide originated through different synthesis routes | Health & Environmental Research Online (HERO)

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HERO ID

5928618

Reference Type

Journal Article

Title

Implication of charge transfer property on the supercapacitive performance of manganese oxide originated through different synthesis routes

Author(s)

Dey, MK; Satpati, AK

Year

2019

Is Peer Reviewed?

Journal

Journal of Electroanalytical Chemistry
ISSN: 1572-6657
EISSN: 1873-2569

Volume

849

DOI

10.1016/j.jelechem.2019.113366

Web of Science Id

WOS:000495482900007

Abstract

In the present investigation manganese oxide in three different forms; Mn-Oxide/pristine, Mn-Oxide/rGO-1 (synthesised through hydrothermal route in HCl media) and Mn-Oxide/rGO-2 (synthesised through hydrothermal route in ethylene glycol) were synthesised. Materials were characterised using spectroscopic, structural and morphological investigation. Supercapacitance property of the materials was investigated through various electrochemical techniques. Materials were having similar structural behaviour, however their morphological characteristics were different. Most superior supercapacitance property was observed in case of Mn-oxide/rGO-2 composite material. Stable charge discharge profile was observed in all the materials when recorded up to 2000 cycles. The specific capacitance values in the case of Mn-Oxide/pristine, Mn-Oxide/rGO-1 and Mn-Oxide/rGO-2 were obtained as 200, 400 and 750 Fg(-1) respectively. (C) 2019 Elsevier B.V. All rights reserved.

Keywords

Manganese oxide; Reduced graphene oxide; Nano composite; Supercapacitor; Charge discharge; Cyclic voltammetry; Hydrothermal method; Electrochemical impedance