A simple two-step electrochemical synthesis of graphene sheets film on the ITO electrode as supercapacitors
A simple two-step electrochemical synthesis of graphene sheets film on the ITO electrode as supercapacitors
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DOI：
10.1007/s10800-011-0304-1
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发表时间：
2011-07-01
影响因子：
2.9
通讯作者：
Yang, Shengrong
中科院分区：
文献类型：
--
作者：
Liu, Sheng;Ou, Junfei;Yang, Shengrong
在这项研究中，一个简单的和可控的两步电化学过程中，石墨烯片（GS）薄膜的清洁氧化铟锡（ITO）片电极上的合成。也就是说，主要程序涉及氧化石墨烯（GO）膜到ITO电极上的电泳沉积（EPD）和随后的GO的原位电化学还原（ECR）以生成GS膜。X射线光电子能谱（XPS）测试表明，ECR后GO膜中的大部分含氧官能团已被去除。电化学测试结果表明，所制备的GS膜电极的最大比电容为156 F g（-1），循环400次后，其电容保持率为78%，显示出良好的超级电容器材料前景。
In this study, a simple and controllable two-step electrochemical process is described for the synthesis of graphene sheets (GS) film on a cleaned indium tin oxide (ITO) sheet electrode. Namely, the main procedures involve the electrophoretic deposition (EPD) of graphene oxide (GO) film onto ITO electrode and the subsequent in situ electrochemical reduction (ECR) of GO to generate GS film. X-ray photoelectron spectroscopy (XPS) measurement demonstrates that most of the oxygen-containing functional groups in GO film have been removed after ECR. By electrochemical measurements, the maximum specific capacitance of the prepared GS film electrode was calculated to be 156 F g(-1), besides, the capacitance retention of the material remained 78% after 400 times of cycling, showing a promising prospect as supercapacitor materials.