摘要
表面活性剂辅助水相剥离法是一种制备较高质量石墨烯的方法。概述了表面活性剂辅助的水相剥离方法的技术优势,包括方法绿色环保、便于规模化、所得石墨烯质量高和产量大等特点。在此基础上,重点综述了近年来不同种类表面活性剂辅助水相剥离石墨烯的研究进展,其中离子型表面活性剂辅助剥离石墨烯,包括烷基阴离子表面活性剂辅助剥离石墨、胆盐类表面活性剂辅助剥离石墨、芘衍生物辅助剥离石墨、阳离子型表面活性剂辅助剥离石墨等;非离子性表面活性剂辅助剥离石墨,包括聚乙烯吡咯烷酮辅助剥离石墨、聚醚表面活性剂辅助剥离石墨、聚乙烯基咪唑类高分子辅助水相剥离石墨等。针对各种形式的表面活性剂辅助水相剥离石墨方法,分别从制备流程、表面活性剂物理化学性能、制得的石墨烯的结构与性能等方面进行了归纳与对比。最后展望了液相剥离制备石墨烯方法在未来的发展方向。
Surfactant-assisted aqueous phase exfoliation is an effective method for preparing high-quality graphene. The advantages of surfactant-assisted aqueous phase exfoliation method were summarized, including environmentally-friendly, suitable for large-scale production and can easily obtained high quality and high yield of graphene. On this basis, the research progress of different surfactant-assisted aqueous phase exfoliation methods in recent years was reviewed. Among them, ionic surfactant-assisted exfoliation of graphene, including alkyl anionic surfactant-assisted exfoliation of graphite, biliary surfactant-assisted exfoliation of graphite and pyrene derivative-assisted exfoliation of graphite were emphasized. Non-ionic surfactant assisted graphene stripping, including polyvinyl pyrrolidone assisted graphite stripping, polyether surfactant assisted graphite stripping and polyvinyl imid-azole polymer assisted graphite stripping. The preparation process, physicochemical properties of surfactants and the structure and properties of prepared graphene were summarized and compared for various surfactant-assisted aqueous phase stripping methods. Finally, we prospected the development trend of liquid phase exfoliation method for preparing graphene.
引文
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