• 文献标题:   Distorted Graphene Sheet Structure-Derived Latent Nanoporosity
  • 文献类型:   Article
  • 作  者:   WANG SW, ABRAHAM D, VALLEJOSBURGOS F, LASZLO K, GEISSLER E, TAKEUCHI K, ENDO M, KANEKO K
  • 作者关键词:  
  • 出版物名称:   LANGMUIR
  • ISSN:   0743-7463
  • 通讯作者地址:   Shinshu Univ
  • 被引频次:   9
  • DOI:   10.1021/acs.langmuir.6b00483
  • 出版年:   2016

▎ 摘  要

High surface area graphene monoliths consist mainly of single graphene layers wider than 10 nm. The interlayer porosity of high temperature treated nanoporous graphene monoliths with tuned intergraphene layer structures is evaluated by hybrid analysis of Ar adsorption at 87 K, N-2 adsorption at 77 K, high resolution transmission electron microscopic observation, and small-angle X-ray scattering (SAXS) measurements. SAXS analysis results in surface areas that are 1.4 and 4.5 times larger than those evaluated by Ar adsorption for graphene monoliths nontreated and treated at 2273 K, respectively. A distorted graphene sheet structure model is proposed for the high surface area graphene monoliths on the basis of the hybrid analysis.