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Title: Microwave-assisted synthesis of Mn{sub 3}O{sub 4} nanoparticles@reduced graphene oxide nanocomposites for high performance supercapacitors

Highlights: • Mn{sub 3}O{sub 4}@rGO nanocomposites were prepared by one-step microwave-assisted method. • The growth of Mn{sub 3}O{sub 4} and the reduction of graphene oxide occurred simultaneously. • Specific capacitance of the nanocomposite is higher than those of rGO and Mn{sub 3}O{sub 4}. • The nanocomposites have good rate capability and cycling stability. - ABSTRACT: One-step microwave-assisted synthetic route for the fabrication of Mn{sub 3}O{sub 4} nanoparticles@reduced graphene oxide (Mn{sub 3}O{sub 4}@rGO) nanocomposites has been demonstrated. The morphological structures of the nanocomposites are characterized by Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction (XRD), thermogravimetric analyses (TGA), and scanning electron microscopy (SEM), respectively. All of the results indicate that the microwave-assisted synthesis results in the growth of Mn{sub 3}O{sub 4} and the reduction of graphene oxide simultaneously in ethylene glycol-water system. The specific capacitance of the as-prepared Mn{sub 3}O{sub 4}@rGO nanocomposite is higher than those of rGO and pure Mn{sub 3}O{sub 4}, which indicates the synergetic interaction between rGO and Mn{sub 3}O{sub 4}. The nanocomposites also have good rate capability and cycling stability in electrochemical experiments. This facile technique may be extended to the large scale and cost effective production of other composites based on graphene and metal oxidemore » for many applications.« less
Authors:
; ;  [1] ;  [1] ; ;  [1] ;  [2]
  1. School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073 (China)
  2. Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong (China)
Publication Date:
OSTI Identifier:
22475978
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 70; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CAPACITANCE; CAPACITIVE ENERGY STORAGE EQUIPMENT; ELECTROCHEMISTRY; FOURIER TRANSFORM SPECTROMETERS; GRAPHENE; INFRARED SPECTRA; INTERACTIONS; MANGANESE OXIDES; MICROWAVE RADIATION; NANOCOMPOSITES; NANOPARTICLES; NANOSTRUCTURES; OXIDES; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; THERMAL GRAVIMETRIC ANALYSIS; X-RAY DIFFRACTION