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RGO/MgO hybrid nanocomposites with high specific capacitance

Authors
  • DAS, PS
  • BAKULI, S
  • BISWAS, I
  • MALLIK, AK
  • DEY, A
  • MUKHERJEE, S
  • GHOSH, J
  • MUKHOPADHYAY, AK
Publication Date
Dec 03, 2018
Identifiers
DOI: 10.1002/2014GL061426
OAI: oai:dsapce.library.iitb.ac.in:100/23261
Source
DSpace at IIT Bombay
Keywords
License
Unknown
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Abstract

A scalable, cost effective synthesis of reduced graphene oxide (RGO)-magnesium oxide (Mg0) hybrid nano composite (RGOMOHNC) is reported in the present work. The process involves an in-situ sonication method in aqueous medium at room temperature e.g., 30 degrees C. The as synthesized graphene oxide (GO) and RGOMOHNC powders are characterized by the XRD, FESEM, TEM, FTIR, RS and XPS techniques. The results indicate that in situ growth of 20-30 nm MgO nanoparticles effectively increases the graphitic nature of the layered RGO microstructure. The experimentally measured cyclic voltammetry (CV) plots show that the specific capacitance of the RGOMOHNC powders is three orders of magnitude higher than that of the GO powders. A mechanism of RGOMOHNC formation has been proposed.

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