• 文献标题:   Reduced graphene oxide-coated mulberry-shaped alpha-Fe2O3 nanoparticles composite as high performance electrode material for supercapacitors
  • 文献类型:   Review
  • 作  者:   LIU PG, WU DL, GAO Y, WANG T, TAN YY, JIA DZ
  • 作者关键词:   fe2o3, mulberryshaped, graphene composite, supercapacitor
  • 出版物名称:   JOURNAL OF ALLOYS COMPOUNDS
  • ISSN:   0925-8388 EI 1873-4669
  • 通讯作者地址:   Xinjiang Univ
  • 被引频次:   7
  • DOI:   10.1016/j.jallcom.2017.12.131
  • 出版年:   2018

▎ 摘  要

We report a facile method to synthesize nanocomposites with Fe2O3 nanoparticles (NPs) loaded on the surface of the reduced graphene oxide nanosheets (rGO) or wrapped into rGO sheets by simply regulating the temperatures and times of the hydrothermal reaction, which combines the growth of Fe2O3 NPs and the reduction of graphene oxide simultaneously. The morphology and microstructure of these samples were examined by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectra, X-ray photoelectron spectroscopy, Fourier transform infrared spectrometer and nitrogen isothermal adsorption-desorption. The effects of different temperatures and times of hydrothermal reaction on the microstructure and capacitive performance of these prepared composites were investigated in detail. The as-synthesized mulberry-shaped alpha-Fe2O3 NPs/graphene nanocomposite shows remarkable pseudocapacitive activity containing high specific capacitance (1051 F g(-1) at 1 A g(-1)) and excellent rate capability (548 F g(-1) at 30 A g(-1)). (C) 2017 Elsevier B.V. All rights reserved.