Park Sungjin, An Jinho, Jung Inhwa, Piner Richard D, An Sung Jin, Li Xuesong, Velamakanni Aruna, Ruoff Rodney S
Department of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin,, Austin, Texas 78712-0292, USA.
Nano Lett. 2009 Apr;9(4):1593-7. doi: 10.1021/nl803798y.
We report that homogeneous colloidal suspensions of chemically modified graphene sheets were readily produced in a wide variety of organic solvent systems. Two different sets of solubility parameters are used to rationalize when stable colloidal suspensions of graphene oxide sheets and, separately, of reduced graphene oxide sheets in a given solvent type are possible and when they are not. As an example of the utility of such colloidal suspensions, "paperlike" materials generated by very simple filtration of the reduced graphene oxide sheets had electrical conductivity values as high as 16,000 S/m.
我们报道，在多种有机溶剂体系中都能轻松制备出化学修饰石墨烯片的均匀胶体悬浮液。使用两组不同的溶解度参数来解释在给定溶剂类型中何时可以形成氧化石墨烯片以及还原氧化石墨烯片的稳定胶体悬浮液，何时不能形成。作为此类胶体悬浮液实用性的一个例子，通过对还原氧化石墨烯片进行非常简单的过滤所生成的“纸状”材料具有高达16,000 S/m的电导率值。
Zotero 插件