• 文献标题:   Novel process of coating Al on graphene involving organic aluminum accompanying microstructure evolution
  • 文献类型:   Article
  • 作  者:   ZHAO ZY, MISRA RDK, BAI PK, GAO JF, LI YJ, GUAN RG, GUO ZH, LIU H
  • 作者关键词:   al, graphene, nanocomposite, microstructure, coating
  • 出版物名称:   MATERIALS LETTERS
  • ISSN:   0167-577X EI 1873-4979
  • 通讯作者地址:   North Univ China
  • 被引频次:   23
  • DOI:   10.1016/j.matlet.2018.08.036
  • 出版年:   2018

▎ 摘  要

A novel chemical reduction of organic aluminum for coating Al on the graphene surface is proposed. During the process, Al powder reacted with the (C2H5)(2)Br solution to produce (C2H5)(3)Al solution, followed by gradual decomposition of (C2H5)3Al into Al atoms. Al atoms gradually deposited on the surface of graphene, nucleated, grew up, until Al coating was formed on the surface of graphene. With the increase of reaction temperature, the decomposition rate of (C2H5)(3)Al increased, which was beneficial to the formation of Al atoms and Al coating. The reducing agent, NaH, promoted the reaction and formation of Al coating. When the reaction temperature was optimized to 100 degrees C, and the reaction time was 1.5 h, with NaH added to the solution, high quality Al-coated graphene was obtained. (C) 2018 Published by Elsevier B.V.