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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >A bifunctional approach for the preparation of graphene and ionic liquid-based hybrid gels
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A bifunctional approach for the preparation of graphene and ionic liquid-based hybrid gels

机译:一种制备石墨烯和离子液体基杂化凝胶的双功能方法

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The synthesis of high quality graphene in large quantities from graphene oxide (GO) and its dispersion in a chemical environment is essential for the real-life applications. Although GO can be converted to reduced graphene oxide (RGO) by using reducing agents, in the absence of suitable stabilizing agents, RGO undergoes an irreversible aggregation in solution. Herein, we propose and illustrate the concept of using bifunctional molecules which (1) can enable the solubilization of GO sheets in ionic liquids (ILs) and (2) can facilitate the highly efficient thermal reduction of GO to RGO on account of the high thermal stability of ILs. We have demonstrated this concept by incorporating an imidazolium cation onto pyrene which can interact with RGO via cation-π and π-π. interactions to form highly stable, porous hybrid gel materials.
机译:由氧化石墨烯(GO)大量合成高质量的石墨烯及其在化学环境中的分散对于实际应用至关重要。尽管可以通过使用还原剂将GO转化为还原的氧化石墨烯(RGO),但在没有合适的稳定剂的情况下,RGO在溶液中会发生不可逆的聚集。本文中,我们提出并举例说明了使用双功能分子的概念,该双功能分子(1)可以使GO片溶解在离子液体(ILs)中,而(2)由于高的热能可以将GO高效热还原为RGO。 IL的稳定性。我们通过将咪唑鎓阳离子掺入pyr上来证明了这一概念,pyr可以通过阳离子-π和π-π与RGO相互作用。相互作用形成高度稳定的多孔混合凝胶材料。

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