• 文献标题:   Supercapacitors with graphene oxide separators and reduced graphite oxide electrodes
  • 文献类型:   Article
  • 作  者:   SHULGA YM, BASKAKOV SA, BASKAKOVA YV, VOLFKOVICH YM, SHULGA NY, SKRYLEVA EA, PARKHOMENKO YN, BELAY KG, GUTSEV GL, RYCHAGOV AY, SOSENKIN VE, KOVALEV ID
  • 作者关键词:   graphite oxide, supercapacitor, separator, proton conductivity, graphene oxide
  • 出版物名称:   JOURNAL OF POWER SOURCES
  • ISSN:   0378-7753 EI 1873-2755
  • 通讯作者地址:   Florida A M Univ
  • 被引频次:   27
  • DOI:   10.1016/j.jpowsour.2015.01.032
  • 出版年:   2015

▎ 摘  要

A supercapacitor (SC) with electrodes fabricated from graphite oxide reduced by a microwave exfoliation (MEGO) method and the separator made from the graphite oxide paper (GOP) formed after precipitation of water suspension of graphene oxide was designed for the first time. The specific capacitance of this SC exceeded 200 F/g. The specific area of our MEGO is 2400 m(2)/g when measured using the standard contact porosimetry method, whereas it is several times smaller (similar to 600 m(2)/g) when measured by using the Brunauer-Emmett-Teller method based on the low-temperature nitrogen adsorption. By using the angle resolved X-ray photoelectron spectroscopy we found that surface layers of the GOP separator contain smaller oxygen concentration than the bulk layers. Published by Elsevier B.V.