4.6 Article

Porous Graphene Oxide Prepared on Nickel Foam by Electrophoretic Deposition and Thermal Reduction as High-Performance Supercapacitor Electrodes

期刊

MATERIALS
卷 10, 期 8, 页码 -

出版社

MDPI AG
DOI: 10.3390/ma10080936

关键词

graphene oxide; electrophoretic deposition; thermal reduction; supercapacitor; electrochemical performance

资金

  1. National Natural Science Foundation of China [51471105]
  2. Shu Guang project of Shanghai Municipal Education Commission and Shanghai Education Development Foundation [12SG44]
  3. Graduate innovation Project of Shanghai University of Engineering Science [16KY0509]

向作者/读者索取更多资源

A simple electrophoretic deposition method was developed to prepare graphene oxide (GO) films on the frameworks of nickel foam without any conductive agents and polymer binders. Then, GO was transformed into thermally-reduced graphene oxide (RGO) at an appropriate temperature. The effects of deposition voltage and thermal reduction temperature on the electrochemical properties of RGO were investigated by cyclic voltammetry (CV) and galvanostatic charge/discharge. The appropriate combination of deposition voltage and thermal reduction temperature was established. Moreover, scanning electron microscopy, thermal gravimetric analysis, differential thermal analysis, Fourier transform infrared spectroscopy, Raman spectroscopy, and X-ray diffractometry were applied to validate the results, which showed that the highest specific capacitance of RGO was obtained when the deposition voltage was 60 V and the thermal reduction temperature was 300 degrees C. The specific capacitance values calculated by CV and galvanostatic charge/discharge were 139 F.g(-1) (0.005 V.s(-1)) and 151 F.g(-1) (1 A.g(-1)), respectively. The specific capacitance of RGO maintained 55% and 66% of the initial value when the scan rate and the current density were increased up to 0.3 V.s(-1) and 10 A.g(-1), respectively. RGO also displayed an excellent cycling stability by maintaining 98% of the initial specific capacitance after 500 cycles.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据