• 文献标题:   Synthesis of Ni/Graphene Nanosheets via Electron Beam Irradiation and Their Enhanced Electrochemical Hydrogen Storage Properties
  • 文献类型:   Article
  • 作  者:   MIN YJ, LEE WJ, GWAK GH, PAEK SM, OH JM
  • 作者关键词:   exfoliation, graphene nanosheet, electron beam irradiation, hydrogen storage
  • 出版物名称:   BULLETIN OF THE KOREAN CHEMICAL SOCIETY
  • ISSN:   0253-2964 EI 1229-5949
  • 通讯作者地址:   Kyungpook Natl Univ
  • 被引频次:   1
  • DOI:   10.1002/bkcs.10530
  • 出版年:   2015

▎ 摘  要

A nanostructured Ni(OH)(2)/graphene oxide (GO) hybrid was fabricated via the controlled reassembly of exfoliated GO with nickel hydroxide to form a delaminated structure. To examine the effect of electron beam irradiation on the hybrid material, the obtained Ni(OH)(2)/GO was exposed to the electron beam, and the total doses of the electron beam were varied from 150 to 250 kGy. The electron-beam-irradiated hybrid was reduced to fabricate a new nanostructured material in which nickel nanoparticles were homogeneously deposited onto the graphene nanosheets (GNS). According to the transmission electron microscopy analysis, a large number of defect sites could be developed after the electron beam treatments. The electrochemical hydrogen storage property (approximately 170 mAh/g) of the hybrid sample after the electron beam treatment was determined to be much superior to that of the GNS (approximately 20 mAh/g), demonstrating that this synthetic methodology via electron beam bombardment could be extended to the development of new nanostructured materials with enhanced hydrogen storage properties.