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赵丽，刘加强，程俊梅，胡海青*
(青岛科技大学 橡塑材料与工程教育部重点实验室，山东 青岛 266042)
摘要： 探讨热解还原法制备石墨烯的工艺条件对石墨烯性能的影响。通过FT-IR、XRD对不同热解时间及不同水洗条件下制备的石墨烯进行了表征，利用四探针测试系统研究了不同石墨烯的电性能。结果表明：随着热解时间的延长，石墨烯的导电性增加，热解时间为40 min时制备的石墨烯有很高的导电性，电阻率为0.01 Ω·cm；热解时间较短的石墨烯带有一部分极性基团，在二甲基甲酰胺（DMF）中有很好的分散性。水洗条件对热解法制石墨烯性能影响不大，因此可以省略水洗步骤，提高石墨烯制备效率。
关键词： 石墨烯；热解时间；电阻率；氧化石墨
中图分类号： O 613.71文献标志码： A
Processing Optimization of Graphene Prepared by Thermal Reduction
ZHAO Li, LIU Jia-qiang, CHENG Jun-mei, HU Hai-qing
（Key Laboratory of Rubber-plastics, Ministry of Education,
Qingdao University of Science and Technology, Qingdao, 266042, China）
Abstract:The pyrolysis reduction process of graphene was discussed in this article. The structure of graphene prepared with different pyrolysis times and washing conditions were characterized by FTIR spectrum and X-ray diffraction (XRD). Four Point Probe Measuring System was used to measure the electrical properties of graphene. The results showed that: Graphene prepared with pyrolysis time of 30 s and 5 min dispersed well in dimethylformamide (DMF). The conductivity of graphene increased with pyrolysis time, however, the dispersity decreased. The resistivity of graphene reached 0.01 Ω·cm when thermally post-treated for 40 min. Whether or not GO was washed with deionized water had little effect on the structure and electric properties of graphene.
Key words:graphene; pyrolysis time; resistivity; graphite oxide
收稿日期：2012-05-03
基金项目： 国家自然科学基金项目（20944004）；山东省自然科学基金项目（ZR2012EMM003）；青岛市科学基础研究项目（12-1-4-3-(7)-jch）；国家质检总局公益性项目（201010009）；北京分子科学国家实验室开放课题项目（2010-2012）.
作者简介： 赵丽（1987—），女，硕士研究生.*通信联系人.
