一种使用分子胶水链接石墨烯片和聚合物涂层来制备可压缩多功能石墨烯气凝胶的通用方法
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摘要
目前,可压缩石墨烯气凝胶在广泛的研究领域中,其需求己大大增加。我们通过使用氧代-1-芘丁酸(OPBA)作为分子胶水,已经开发出一种制造可压缩石墨烯气凝胶的通用方法。众所周知,原始石墨气凝胶较脆,所以我们可以通过将水热或化学还原后得到的石墨烯骨架浸涂上聚合物,而所得到的涂有聚合物的石墨烯气凝胶具有高弹性。改进的可压缩特性归因于石墨烯片上聚合物的的均匀的涂层,并通过OPBA分子胶水使石墨烯片和聚合物层之间具有有效应力传递。我们预计,这种类型的强集成石墨烯气凝胶可在实际中有广泛应用,诸如亲水性和亲油性方面和可压缩电传感器等。
Demands of the compressible graphene-based aerogel have substantially increased in a wide range of research areas.By using a molecular glue strategy,such as γ-oxo-l-pyrenebutyric acid(OPBA),we have developed a universal method to fabricate compressible graphene-based aerogel.In contrast to the brittle pristine graphene aerogel,after dip-coating polymers on the graphene skeleton which could be obtained by hydrothermal or chemical reduction,the resulting polymer-coated graphene aerogel demonstrates high elastic properties.The improved compressible properties are attributed to the uniform coating of polymer on the graphene sheet and the effective stress transfer between the graphene sheet and polymer layers enabled by OPBA molecular glue.We anticipate that this type of strong integrated graphene-based aerogel could be used in practical applications,such as hydrophiphilic and oleophilic intelligence and compressible electrical sensor.
引文
[1]Pierre,A.C;Pajonk,G.M.Chemical reviews.2002,102:4243.
    [2]Davis,M.E.Nature.2002,417:813.

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