Journal
CARBON
Volume 69, Issue -, Pages 327-335Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2013.12.031
Keywords
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Funding
- Korea CCS RD Centre grant [2013M1A8A1035853]
- Converging Research Center Program [2012K001486]
- National Research Foundation in Korea
- Mid-career Researcher Program by the National Research Foundation in Korea [2011-0017605, 2011-0017539]
- National Research Foundation of Korea [2013M1A8A1035853] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A novel one-pot process that can produce freestanding reduced graphene oxide (RGO) sheets in large scale through a mechanochemical method is presented, which is based on a 1:1 adduct of hydrazine and carbon dioxide (H3N+NHCO2-, solid hydrazine). We were able to synthesize RGO sheets by grinding solid hydrazine with graphene oxide (GO), followed by storing the mixed powder at 50 degrees C for 10 min. No solvents, nor large vessels, nor post-annealing at high temperatures are required. The resulting RGO sample was characterized by elemental analysis, X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, Brunauer-Emmett-Teller measurement, thermo gravimetric analysis, Fourier transform infrared spectroscopy, solid state nuclear magnetic resonance spectroscopy, and conductivity measurement. It exhibits excellent conductivity and possesses a high specific surface area. This reduction method was successfully applied for the fabrication of inkjet-printed RGO devices on a flexible substrate. (C) 2013 Elsevier Ltd. All rights reserved.
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