期刊
SYNTHETIC METALS
卷 161, 期 13-14, 页码 1211-1216出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2011.04.005
关键词
Porous carbon nanofiber composites; Electrospinning; Polymethylhydrosiloxane; Silica; Supercapacitor
资金
- National Research Foundation of Korea(NRF) [NRF-2010-616-D00018]
- Ministry of Education, Science and Technology (MEST) [K20901001725-11E0100-09700]
- National Research Foundation of Korea [2009-00452, 과06B1512, 과C6B1911] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Grants-in-Aid for Scientific Research [22560311] Funding Source: KAKEN
Porous carbon nanofiber composites (NFCs) were prepared by electrospinning blended solutions of polyacrylonitrile (PAN) and polymethylhydrosiloxane (PMHS) in N,N-dimethylformamide (DMF). A PMHS concentration of 5 wt% was regarded as the optimum concentration to obtain fibers of a uniform size with a homogeneous dispersion of silica, the maximum specific surface area and the highest conductivity (4.91 S cm(-1)) after heat treatment at 800 degrees C. The supercapacitor electrode prepared with 5 wt% PMHS had the highest specific capacitance, 126.86 F/g, and the highest energy density, 17.0-10.0 Wh/kg, in the range of 400-20,000 W/kg in a 6 M KOH aqueous solution. (C) 2011 Elsevier B.V. All rights reserved.
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