• 文献标题:   Organic Solvent-Based Graphene Oxide Liquid Crystals: A Facile Route toward the Next Generation of Self-Assembled Layer-by-Layer Multifunctional 3D Architectures
  • 文献类型:   Article
  • 作  者:   JALILI R, ABOUTALEBI SH, ESRAFILZADEH D, KONSTANTINOV K, MOULTON SE, RAZAL JM, WALLACE GG
  • 作者关键词:   graphene oxide, liquid crystal, liquid crystal in organic solvent, selfassembled composite, layerbylayer composite
  • 出版物名称:   ACS NANO
  • ISSN:   1936-0851 EI 1936-086X
  • 通讯作者地址:   Univ Wollongong
  • 被引频次:   140
  • DOI:   10.1021/nn305906z
  • 出版年:   2013

▎ 摘  要

We introduce soft self-assembly of ultralarge liquid crystalline (LC) graphene oxide (GO) sheets In a wide range of organic solvents overcoming the practical limitations imposed on LC GO processing in water. This expands the number of known solvents which can support amphiphilic self-assembly to ethanol, acetone, tetrahydrofuran, N-dimethylformamide, N-cyclohexyl-2-pyrrolidone, and a number of other organic solvents, many of which were not known to afford solvophobic self-assembly prior to this report. The LC behavior of the as-prepared GO sheets in organic solvents has enabled us to disperse and organize substantial amounts of aggregate-free single-walled carbon nanotubes (SWNTs, up to 10 wt %) without compromise in LC properties. The as-prepared LC GO-SWNT dispersions were employed to achieve self-assembled layer-by-layer multifunctional 3D hybrid architectures comprising SWNTs and GO with unrivalled superior mechanical properties (Young's modulus in excess of 50 GPa and tensile strength of more than 500 MPa).