Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 10, Issue 6, Pages 868-871Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.04.003
Keywords
corn grains; activated carbon; surface functional groups; adsorption energy distribution; electrical double layer capacitor
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Funding
- National Research Foundation of Korea [핵06B1309, R01-2005-000-10742-0, 과C6B1911] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, novel corn grains-based activated carbons (CG-ACs) were prepared and their use as electrodes in the electrical double layer capacitor (EDLC) performed successfully. The structural properties, energetic heterogeneities and surface functional groups of CG-ACs were characterized using different techniques like nitrogen sorption data, adsorption energy distribution (AED) and X-ray photoelectric spectroscopy (XPS). The electrochemical properties of various CG-ACs were evaluated by using cyclic voltammetry. The maximum specific capacitance value as 257 F g(-1) was obtained in 6 M KOH electrolyte solution. The effects of various properties of the porous carbon materials on the EDLC performance were discussed. (c) 2008 Elsevier B.V. All rights reserved.
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