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利用液体炸药爆轰制备石墨烯薄片
引用本文:孙贵磊,闫鸿浩,李晓杰.利用液体炸药爆轰制备石墨烯薄片[J].爆炸与冲击,2016,36(5):715-720.
作者姓名:孙贵磊  闫鸿浩  李晓杰
作者单位:中国劳动关系学院安全工程系,北京100048;北京大学力学与空天技术系,北京100871;大连理工大学工程力学系,辽宁大连,116024
基金项目:北京高等学校青年英才计划项目,中国劳动关系学院一般项目(13YY009)
摘    要:强氧化性酸的环境下,石墨易形成石墨层间化合物(GICs),利用石墨这一特性,将天然石墨置于发烟硝酸中,并加入硝基甲烷,配制成液体炸药,使用塑料容器盛装后放入爆轰反应釜中引爆。收集爆轰产物,并利用XRD、EDX、SEM、TEM、Raman光谱、比表面积与孔隙度分析仪进行分析,结果显示:制备出的石墨烯具有良好的晶体特性并呈现极薄的片状结构,其比表面积达到天然石墨的9.16倍,平均厚度约为14.73 nm。

关 键 词:爆炸力学  石墨烯薄片  液体炸药  爆轰剥离  比表面积
收稿时间:2015-07-01

Preparation of grapheme by detonation using liquid explosive
Sun Guilei,Yan Honghao,Li Xiaojie.Preparation of grapheme by detonation using liquid explosive[J].Explosion and Shock Waves,2016,36(5):715-720.
Authors:Sun Guilei  Yan Honghao  Li Xiaojie
Institution:1.Department of Safety Engineering, China Institute of Industrial Relations, Beijing 100048, China2.Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, Liaoning, China3.Department of Mechanics & Aerospace Engineering, College of Engineering, Peking University, Beijing 100871, China
Abstract:Graphite intercalation compounds (GICs) can be obtained when graphite is placed in strong oxidizing acids. Using this characteristic, we prepare liquid explosive by putting natural graphite in strong HNO3 and mixing it with CH3NO2. Then we poured the mixture into a plastic container and placed the container at the center of a detonation reactor to ignite the explosive mixture. After the detonation, we collected and analyzed the soot by XRD, EDX, SEM, TEM, Raman spectroscopy, the specific surface area and porosity analyzer. Results indicate that the prepared grapheme possesses perfect crystal properties and exhibits a structure of thin sheets, with a specific surface area 9.16 times that of natural graphite and an average thickness of about 14.73 nm.
Keywords:mechanics of explosion  grapheme flakes  liquid explosive  detonation split  specific surface area
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