Electrical Conductivity of Alkaline-reduced Graphene Oxide  

作　　者：WANG Huan TIAN Hong-wei WANG Xin-wei QIAO Liang WANG Shu-min WANG Xing-li ZHENG Wei-tao LIU Yi-chun 

机构地区：[1]Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science, Jilin University, Changchun 130012, P. R. China [2]Key Laboratory for UV-Emitting Materials and Technology, Ministry of Education, Center for Advanced Optoelectronic Functional Materials Research, Northeast Normal University, Changchun 130024, P. R. China

出　　处：《Chemical Research in Chinese Universities》2011年第5期857-861,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Nos.50525204, 50832001);the Special PhD Program of Ministry of Education, China(No.200801830025);the Program for Changjiang Scholars and Innovative Research Team in University of China;the "211" and "985" Project of Jilin University, China

摘　　要：A green route using a very simple and straightforward ultrasonic process under alkaline conditions, rather than a general chemical reduction process using hydrazine, was utilized to obtain the hydrophilic reduced graphene oxide（RGO） sheets, via removing oxygen functional groups from graphene oxide（GO） and repairing the aromatic structure. It is found that the conductivity of the obtained RGO could be tuned by changing pH value in alkaline solution, and the current-voltage（I-V） curves of both GO and RGO are nonlinear and slightly asymmetric. Under the same applied voltage, the current of RGO is much larger than that of GO, indicating a pronounced increase in the electrical conductivity of RGO, compared to that of GO.A green route using a very simple and straightforward ultrasonic process under alkaline conditions, rather than a general chemical reduction process using hydrazine, was utilized to obtain the hydrophilic reduced graphene oxide（RGO） sheets, via removing oxygen functional groups from graphene oxide（GO） and repairing the aromatic structure. It is found that the conductivity of the obtained RGO could be tuned by changing pH value in alkaline solution, and the current-voltage（I-V） curves of both GO and RGO are nonlinear and slightly asymmetric. Under the same applied voltage, the current of RGO is much larger than that of GO, indicating a pronounced increase in the electrical conductivity of RGO, compared to that of GO.

关 键 词：GRAPHENE REDUCTION CONDUCTIVITY 

分 类 号：TQ925.6[轻工技术与工程—发酵工程] TB43[一般工业技术]