The synergy reduction and self-assembly of graphene oxide via gamma-ray irradiation in an ethanediamine aqueous solution  

作　　者：Ya-Lei He Ji-Hao Li Lin-Fan Li Jing-Bo Chen Jing-Ye Li 

机构地区：[1]School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450002,China [2]CAS Center for Excellence on TMSR Energy System,Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China

出　　处：《Nuclear Science and Techniques》2016年第3期80-87,共8页核技术（英文）

基　　金：supported by the National Natural Science Foundation of China(No.11505270);Shanghai Municipal Commission for Science and Technology(No.15ZR1448300)

摘　　要：Gamma-ray irradiation technique is an effective method for preparing graphene aerogel(GA).The effective reduction and self-assembly of graphene oxide(GO) sheets into 3D porous GA in ethylenediamine(EDA) aqueous solution under the protection of nitrogen have been achieved via γ-ray irradiation.The reduction degree and self-assembly process,which can be controlled by varying EDA dose and irradiation dose,are investigated by X-ray photoelectron spectroscopy,Fourier transform infrared spectroscopy,X-ray diffractometer,and thermogravimetric analysis.A reduction mechanism is proposed for interactions among EDA molecules,active radicals from the radiolysis of water,and oxygen-containing groups on GO sheets.Gamma-ray irradiation technique is an effective method for preparing graphene aerogel（GA）.The effective reduction and self-assembly of graphene oxide（GO） sheets into 3D porous GA in ethylenediamine（EDA） aqueous solution under the protection of nitrogen have been achieved via γ-ray irradiation.The reduction degree and self-assembly process,which can be controlled by varying EDA dose and irradiation dose,are investigated by X-ray photoelectron spectroscopy,Fourier transform infrared spectroscopy,X-ray diffractometer,and thermogravimetric analysis.A reduction mechanism is proposed for interactions among EDA molecules,active radicals from the radiolysis of water,and oxygen-containing groups on GO sheets.

关 键 词：Γ射线照射 氧化石墨 乙二胺 自组装 协同还原 溶液 傅里叶变换红外光谱 X射线光电子能谱 

分 类 号：O613.71[理学—无机化学] TP212[理学—化学]