Deparment of Chemistry, Tsinghua University, Beijing 100084, PR China.
Langmuir. 2010 Jun 1;26(11):9045-9. doi: 10.1021/la9049082.
High-quality graphene flakes have been exfoliated directly from graphite by solvothermal treatment. By introducing the oil/water interface, graphene can be easily and quickly separated from the graphene/NMP solution, which overcomes shortcomings of the time-consuming method of filtration. At the same time, the graphene film can be fabricated at the oil/water interface by controlling the volume of graphene/NMP solution. Furthermore, carbon nanotube/carbon nanospheres films can also be prepared successfully through the same separation method.
高质量的石墨烯薄片已经通过溶剂热法直接从石墨中剥离出来。通过引入油/水界面，可以将石墨烯从石墨烯/NMP 溶液中轻易且快速地分离出来，克服了过滤法耗时的缺点。同时，可以通过控制石墨烯/NMP 溶液的体积在油/水界面上制备石墨烯薄膜。此外，还可以通过相同的分离方法成功制备碳纳米管/碳纳米球薄膜。
