Organosilicon modified method to improve Li^+ storage capacity of graphene oxide (GO)  

作　　者：WANG Kun JU DongYing XU GuiYing HAN BeiBei CHAI MaoRong WANG YingXin Li LiXiang ZHANG XueHu UCIDA Masaya ZHOU WeiMin 

机构地区：[1]Key Laboratory of Energy Materials and Electrochemistry Research Liaoning Province,School of Chemical Engineering,University of Science and Technology Liaoning,Anshan 114051,China [2]School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China [3]Advanced Science Research Laboratory,Saitama Institute of Technology,1690 Fusaiji,Fukaya,Japan [4]JiXi Weida New Material Technology Co.,Ltd,Jixi 158100,China

出　　处：《Science China(Technological Sciences)》2020年第12期2709-2716,共8页中国科学（技术科学英文版）

基　　金：This work was supported by the University of Science and Technology Liaoning(Grant Nos.601009816-39 and 2017RC03);the National Natural Science Foundation of China(Grant Nos.51672117,51672118 and 51872131)。

摘　　要：Organosilicon modified reduced graphene oxide(Mr GO) has been fabricated by direct organosilicon modification of graphene oxide(GO). Interestingly,it is observed that 3D rGO-like structures occurred after directly carrying out the organosilicon modification on the surface of GO. The obtained organosilicon Mr GO displays the more remarkable improvement of electrochemical performances than GO,which was verified by electrochemical measurements in detail. For instance,the organosilicon MrGO shows the cycling performances at 901 mA hg^-1 after 200 cycles at 0.1 Ag^-1 and 446 mA hg^-1 after 300 cycles at 2.0 Ag^-1,respectively. These results unveil that organic modification method is an effective way to improve the Li^+ storage capacity of general carbon materials.

关 键 词：graphene oxide(GO) surface modification organosilicon modification 3D rGO-like structure organic-inorganic concept lithium ion batteries(LIBs) 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ127.11[化学工程—无机化工]