• 文献标题:   Synthesis of Three-dimensional Graphene Electrodes and Their Applications in Capacitive Deionization
  • 文献类型:   Article
  • 作  者:   CHEN CY, YU F, ZHOU HM, CHEN JH, MA J
  • 作者关键词:   capacitive deionization, electrode material, graphene, aerogel, hydrogel
  • 出版物名称:   CHEMICAL JOURNAL OF CHINESE UNIVERSITIESCHINESE
  • ISSN:   0251-0790
  • 通讯作者地址:   Tongji Univ
  • 被引频次:   5
  • DOI:   10.7503/cjcu20150325
  • 出版年:   2015

▎ 摘  要

In this paper, three-dimensional (3D) graphene hydrogel/aerogel were synthesized by wet chemistry methods, and then used as electrode materials in capacitive deionization(CDI) to separate NaCl from aqueous solution. Besides, the structure and character of the electrodes were analyzed by scanning electron microscopy, cyclic voltammetry, X-ray photoelectron spectroscopy and other methods. The results show that 3D graphene hydrogel has larger adsorption capacity than graphene aerogel. Then the graphene hydrogel electrode was optimized by pressing graphene hydrogel(pressing hydrogel). 3D graphene electrodes achieve good results in capacitive deionization. And the adsorption capacity ranking from big to small is pressing hydrogel, graphene hydrogel, graphene aerogel.