Chinese Journal of Applied Chemistry ›› 2018, Vol. 35 ›› Issue (2): 232-238.DOI: 10.11944/j.issn.1000-0518.2018.02.170083

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Preparation of Large-size Graphene Oxide Films Based on Iron(Ⅲ) Chloride Catalysis

LI Zhanguoa,FAN Sidaab,ZHANG Liangb,ZHANG Peipeiab,SUN Lijingb,YIN Lib,ZHANG Jidongc,WANG Lijuanb*()   

  1. aSchool of Electro-Optical Engineering,Changchun University of Science and Technology,Changchun 130022,China
    bSchool of Chemical Engineering,Changchun University of Technology,Changchun 130012,China
    cState Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2017-03-24 Accepted:2017-06-26 Published:2018-02-01 Online:2018-01-29
  • Contact: WANG Lijuan
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21403016), the Scientific Research Foundation of Education Department of Jilin Province(No.2016326, No.JJKH20170556KJ), the Key Program for Science and Technology Development of Jilin Province of China(No.20170204014SF)

Abstract:

In order to obtain large-area graphene oxide(L-GO) films, a series of FeCl3-catalyzed L-GO films are prepared. The surface morphology and structure of L-GO films synthesized with various temperatures and times are studied by atomic force microscope(AFM), polarizing microscope(POM), Fourier transform infrared spectrometer(FTIR), and X-ray diffraction(XRD). The sheet domain area of FeCl3-catalyzed L-GO films is 10 μm×10 μm, which increases about four times in contrast to that of GO films prepared without catalyst. By further analysis of FTIR and XRD, the formation of L-GO domains can be attributed to the new connections of the hydroxyl, carboxyl, and carbonyl groups in graphene oxide under FeCl3 catalysis. Thus, a formation model of FeCl3-catalyzed L-GO films is proposed, which provides a new way for the preparation of large area graphene oxide films.

Key words: iron chloride, catalyst, graphene oxide sheet, large-size thin film, surface morphology, Fourier transform infrared spectroscopy