期刊
CARBON
卷 94, 期 -, 页码 405-411出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.07.006
关键词
-
资金
- National Natural Science Foundation of China [51072151, 51173139, 51201117]
- National Key Basic Research Program of China [2010CB227105]
Up to now, the cost-effective mass production of pristine graphene sheets remains a significant challenge. We report a binary solvent system of dimethylformamide and n-butylalcohol that facilitates the high concentration production of unoxidized graphene through liquid-exfoliation assisted with sonication. A stable dispersion with concentration as high as 6.5 mg/ml, was received via this method. The conductivity of a film made from the graphene sheets had a conductivity of 27,000 S/m. The supercapacitor fabricated by graphene exhibits a giant capacitance of 600 F/g and an outstanding long-term stability. (C) 2015 Elsevier Ltd. All rights reserved.
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