Process Conditions of Exfoliated Single-Layer Graphite

摘要：

　　The graphite was exfoliated by concentrated acid treatment,strong oxidants oxidation,high temperature rapid thermal shock process.Investigated in detail that the kind of oxidants,concentrated acid ratio,oxidation time affected on the graphite expansion rate.Experimental results (expansion,micro-structure observation and chemical structure analysis of graphite) showed that the optimum volume ratio of concentrated sulfuric acid and concentrated nitric acid was 4∶ 1; the expansion rate was better that added oxidant KMnO4 than added oxidant K2Cr2O7; The best oxidation time (concentrated acid treatment time) was 30~60 min.

关键词： Exfoliated Single-layer graphite Process conditions

作者: Cheng Yang Tianyu Zhao Lijuan Sun Hongsong Song Dabo Liu

作者单位: Laboratory of Structural Steel, Functional Material and Metal Heat Treatment Technology, Beijing Institute of Aeronautical Materials, Beijing 100095, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

会议地点: 厦门

会议语种:英文

页码: 350-354

在线出版日期: 2012-01-04（万方平台首次上网日期，不代表论文的发表时间）