Performance of chemically synthesized Mn3O4/rGO nanocomposite for electrochemical supercapacitor: a cost-effective high-performance electrode

Qiongyu Li, You Li, A. V. Fulari, G. S. Ghodake, Dae Young Kim, G. M. Lohar

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

The manganese oxide graphene oxide (Mn3O4/rGO) composite heterojunction with copper oxide is useful for the production of an electrochemical supercapacitor. The graphene oxide and manganese oxide composite have been synthesized by adopting a method of co-precipitation. The composite of Mn3O4/rGO was synthesized with different concentrations of Mn3O4 and rGO. The structural, morphological, electrochemical and supercapacitive properties of Mn3O4/rGO composite have been examined. The electrochemical and supercapacitive properties have been studied with regard to different substrates. The Mn3O4/rGO composite was deposited on different substrates such as steel, copper and brass. The CuO/Mn3O4/rGO shows relatively better specific capacitance (856 F g-1) and better stability (82% retention after 2000 cycles) than other substrates used. The present work describes the development of cost-effective and high-performance CuO/Mn3O4/rGO-based nanomaterials for supercapacitors. The CuO/Mn3O4/rGO composite can be used as a flexible supercapacitor device.

Original languageEnglish
Article number415403
JournalNanotechnology
Volume31
Issue number41
DOIs
StatePublished - 9 Oct 2020

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