射频等离子体处理对氧化石墨烯的影响

分别使用氢气和氩气射频等离子体放电处理氧化石墨烯溶液,快速的对氧化石墨烯进行还原,同时得到了三维多孔的表面形貌。结果显示,还原性气体(氢气)对氧化石墨烯的还原程度高于惰性气体(氩气)对其的还原;通过改变射频等离子体的放电功率,表明放电功率越大,氧化石墨烯的还原程度越高。用射频等离子体还原氧化石墨烯,方法更有效且环境友好,处理后得到的三维多孔形貌的还原氧化石墨烯有望进一步应用于超级电容器、锂电池、传感器等领域。

Effects of Graphene Oxide Treated by Radio Frequency Plasma

Treated by the radio frequency plasma of hydrogen and argon, graphene oxide which was rapidly reduced formed three-dimensional porous network simultaneously. Results showed that reducing gas had more reducibility on graphene oxide than inert gas after hydrogen and argon plasma were used on graphene oxide respectively. The degree of reduction on graphene oxide was gradually enhanced with the increasing discharge power of radio frequency plasma. The method of reduction on graphene oxide by radio frequency plasma was efficient and eco-friendly. The resulting three-dimensional reduced graphene oxide was expected to be further applied to the fields of supercapacitor, lithium battery and sensors.