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Ammonia borane assisted solid exfoliation of graphite fluoride for facile preparation of fluorinated graphene nanosheets
Affiliation:1. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, PR China;2. Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, PR China;3. Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin 300072, PR China;4. Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, PR China;1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China;2. University of Chinese Academy of Sciences, Beijing, 100080, P. R. China;1. Guangxi Colleges and Universities Key Laboratory of Novel Energy Materials and Related Technology, College of Physics Science and Technology, Guangxi University, Nanning 530004, PR China;2. Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, PR China;1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, PR China;2. Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, PR China;1. Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, F-63000 Clermont-Ferrand, France;2. CNRS, UMR6296, Institut de Chimie de Clermont-Ferrand, F-63171 Aubiere, France;3. SAFT, Direction de la Recherche, 111-113 Bd A. Daney, F-33074 Bordeaux, France;1. Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut de Chimie de Clermont-Ferrand (UMR 6296), BP 10448, F-63000 Clermont-Ferrand, France;2. School of Environmental and Life Sciences, The University of Newcastle, Callaghan, New South Wales 2308, Australia;3. Mark Wainwright Analytical Centre, University of New South Wales, Sydney, New South Wales 2052, Australia;4. School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
Abstract:Fluorinated graphene, which combines the unique properties of graphite fluoride and graphene, has attracted considerable attention in recent years. Here, we developed a facile, efficient, and scalable method for high-yield exfoliation of graphite fluoride into fluorinated graphene (fluorographene) nanosheets. The exfoliation approach consists of solid ball milling of graphite fluoride with ammonia borane and followed washing with ethanol to get rid of ammonia borane from the products. The majority of the as-synthesized fluorographene nanosheets consist of 1–6 atomic layers with grain sizes in the range of 0.3–1 μm. X-ray diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy demonstrated that fluorographene has the same structure as pristine graphite fluoride.
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