首页 | 本学科首页   官方微博 | 高级检索  
     


Aqueous-phase exfoliation of graphite in the presence of polyvinylpyrrolidone for the production of water-soluble graphenes
Authors:Athanasios B. Bourlinos   Vasilios Georgakilas   Radek Zboril   Theodore A. Steriotis   Athanasios K. Stubos  Christos Trapalis
Affiliation:1. Institute of Materials Science, NCSR “Demokritos”, Ag. Paraskevi Attikis, Athens 15310, Greece;2. Department of Physical Chemistry, Palacky University, Svobody 26, Olomouc 77146, Czech Republic;3. Institute of Physical Chemistry, NCSR “Demokritos”, Ag. Paraskevi Attikis, Athens 15310, Greece;4. Institute of Nuclear Technology and Radiation Protection, Environmental Research Laboratory, NCSR “Demokritos”, Ag. Paraskevi Attikis, Athens 15310, Greece;1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;2. School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, and School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China;2. School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, PR China;3. Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UK;4. Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA;1. Laboratory of Industrial Chemistry, Ruhr-University Bochum, D-44780 Bochum, Germany;2. Analytische Chemie-Elektroanalytik & Sensorik, Ruhr-University Bochum, D-44780 Bochum, Germany;3. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190 Beijing, China;4. Lehrstuhl für verfahrenstechnische Transportprozesse, Ruhr-University Bochum, D-44780 Bochum, Germany;5. Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, D-40237 Düsseldorf, Germany;1. School of Chemical Engineering, University of Ulsan, Ulsan 680-749, Republic of Korea;2. College of Chemistry, Chemical Engineering and Food Safety, Bohai University, 19 Sci-tech Road, Jinzhou 121013, PR China;3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China;4. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0100, USA
Abstract:Treatment of crystalline graphite fine powder with an aqueous solution of the harmless and versatile substance polyvinylpyrrolidone under sonication results in water-soluble, polymer-protected graphene single layers without oxidation or destruction of the sp2 character of the carbon core. The liquid-phase extraction of graphene monolayers was evidenced by TEM and AFM techniques, while their graphitic character was checked with Raman spectroscopy. Besides PVP, the water-soluble biopolymers albumin and sodic carboxymethylcellulose were also employed successfully in the aqueous-phase exfoliation of graphite, thereby supporting the generic character of the present method using a variety of suitable polymeric extractants.
Keywords:A. Graphene   A. Polyvinylpyrrolidone   B. Aqueous-phase exfoliation   D. Solution properties
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号