氧化-还原法制备石墨烯材料

Preparation of Graphene Materials by Oxidation-Reduction Method

石墨烯材料具有优异的光学、力学、导电、导热性能,受到了广泛关注。叙述了石墨氧化还原法制备石墨烯的方法,包括石墨的氧化、剥离、还原三个步骤。氧化处理主要介绍了Hummers法、Brodie法以及Staudenmaier法,并比较了三种方法的优缺点。剥离处理有超声剥离和热膨胀剥离两种,阐述了各自的作用机理。还原处理包括化学试剂还原法、热还原法、电化学还原法,举例说明了三种方法的处理效果。最后,对石墨烯材料的发展提出了展望。

Graphene materials,with excellent optical,mechanical,conductive and thermal conductivity,are widely concerned,nowadays. The methods of preparing graphene by redox reaction are described,including the oxidation,stripping and reduction of graphite. The oxidation treatment mainly introduced Hummers method,Brodie method and Staudenmaier method,and compared the advantages and disadvantages of the three methods in the meantime. Stripping treatment contained ultrasonic peeling and thermal expansion. Their respective action mechanism was mentioned too. Reduction treatment includes chemical reagent reduction method,thermal reduction method and electrochemical reduction method,and the treatment effect of three methods is illustrated and compared. Finally,the development of graphene materials is prospected.