Microwave assisted synthesis of graphene oxide - MnO2 nanocomposites for electrochemical supercapacitors

Autor:	T.S. Xavier, A. R. Athira, V. M. Vimuna
Rok vydání:	2018
Předmět:	Supercapacitor Horizontal scan rate Nanocomposite Materials science Graphene Oxide Nanotechnology Electrochemistry law.invention chemistry.chemical_compound chemistry law Cyclic voltammetry Hybrid material
Zdroj:	AIP Conference Proceedings.
ISSN:	0094-243X
DOI:	10.1063/1.5032471
Popis:	Grapheneoxide-MnO2 nanocomposite was successfully synthesized through the self-limiting deposition of nano scale MnO2 on the surface of graphene oxide under microwave- irradiation in a water- isopropyl alcohol system. The structural and morphological properties of as synthesized samples have been studied. These nanostructured graphene oxide-MnO2 (GMC) hybrid materials are used for investigation of electrochemical behaviours. It was found that the electrochemical performance of as prepared nanocomposite could be enhanced by chemical interaction between GO and MnO2. Cyclic voltammetry is employed to assess the properties of these nanocomposites for use in supercapacitors. The specific capacitance of the synthesized sample corresponding to scan rate of 20mV/s is calculated to be 280 Fg−1. Furthermore, we emphasize the fabrication challenges and future perspectives of such materials for energy storage.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5e85693f3bfae9a814e7b20c8db7a10f https://doi.org/10.1063/1.5032471 Zobrazit plný text záznamu