低氧掺杂纳米石墨片的制备及其电化学性能  

Low Oxygen-Doped Graphite Nanosheet: Preparation and Electrochemical Performance

作　　者：季海滨[1] 宋沙沙[1] 杨玉燕[1] 刘洋[1] 赵增典[1] 

机构地区：[1]山东理工大学化学工程学院,淄博255049

出　　处：《无机化学学报》2016年第5期745-752,共8页Chinese Journal of Inorganic Chemistry

基　　金：山东省自然科学基金(No.ZR2011BL005)资助项目

摘　　要：采用一种新颖的物理方法——磁力研磨法制备石墨片纳米材料,该方法能够高效的将初始鳞片石墨剥离破碎至纳米级别。研究发现,制备得到的纳米石墨片(Graphite nanosheet)具有一定的含氧官能团,并且随研磨时间增加,其比表面积可增加至804m^2·g^(-1)。电化学性能测试结果表明,在0.1 A·g^(-1)的电流密度下,最大比电容量可达到266.8 F·g^(-1),体现出了良好的电化学性能。A new physics method of magnetic grinding was provided to produce nanographite, which can efficiently break flake graphite to nanoscale. The obtained graphite nanosheets possessed oxygen-containing groups and it＇s specific surface area could reach to 804 m^2·g^-1 with increase of grinding time. The electrochemical data showed that the capacitance of the graphite nanosheet was 266.8 F·g^-1 under the current density of 0.1 A·g^-1, indicating excellent electrochemical performance.

关 键 词：磁力研磨 石墨纳米片 比电容量 

分 类 号：P619.252[天文地球—矿床学]