石墨烯制备技术改进与优化的研究现状

Research status of modification and optimization of graphene preparation method

石墨烯凭借独特的π电子共轭体系与物理化学性质而成为相关领域的研究热点。传统制备石墨烯的方法因质量与产量无法兼顾的问题而限制其产业化发展。近年来随着石墨烯制备新技术的不断改进和完善、使得大面积、高质量、低成本的石墨烯高效制备成为可能,通过综述机械剥离法、液相剥离法等物理制备方法的改进工艺,以及化学气相沉积法、化学氧化还原法、电化学剥离法等化学制备方法的新技术优化,探讨了石墨烯的应用前景与制备路线的改进思路。通过比较各种改进的制备技术与其产物的优缺点,得到改进的氧化还原法与电化学剥离法是最有潜力的工业制备方法的结论,并给出这两种方法深入研究与改进的方向。

Due to uniqueπelectron conjugated system and physical and chemical properties,graphene has become the research focus of related field.But traditional preparation of graphene restrict the development of graphene industry as high quality and large quantity of graphene could not be obtained simultaneously.Recently,with the improvement and optimization of graphene preparation methods,it makes it possible for preparing large-area,highquality graphene at low cost.By reviewing the modification of physical preparation methodslike micro-mechanical exfoliation techniques and liquid exfoliation techniques and optimization of chemical preparation methodslike CVD techniques,oxidation-reductionmethod and electrochemical exfoliation techniques,prospect application of products graphene and further optimization directions were given.After comparing advantages and disadvantages of optimized methods and products,conclusions that oxidation-reductionmethod and electrochemical exfoliation techniques were the preparation method for industry with significantly promising potentiality were drawn.Finally,the direction of further research and optimization of these two methods were briefly introduced.