• 文献标题:   Alkali Reduction of Graphene Oxide in Molten Halide Salts: Production of Corrugated Graphene Derivatives for High-Performance Supercapacitors
  • 文献类型:   Article
  • 作  者:   ABDELKADER AM, VALLES C, COOPER AJ, KINLOCH IA, DRYFE RAW
  • 作者关键词:   graphene oxide, molten halide, metallothermic reduction, surface corrugation
  • 出版物名称:   ACS NANO
  • ISSN:   1936-0851 EI 1936-086X
  • 通讯作者地址:   Univ Manchester
  • 被引频次:   68
  • DOI:   10.1021/nn505700x
  • 出版年:   2014

▎ 摘  要

Herein we present a green and facile approach to the successful reduction of graphene oxide (GO) materials using molten halide flux at 370 degrees C. GO materials have been synthesized using a modified Hummers method and subsequently reduced for periods of up to 8 h. Reduced GO (rGO) flakes have been characterized using X-ray-diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR), all indicating a significantly reduced amount of oxygen-containing functionalities on the rGO materials. Furthermore, impressive electrical conductivities and electrochemical capacitances have been measured for the rGO flakes, which, along with the morphology determined from scanning electron microscopy, highlight the role of surface corrugation in these rGO materials.