Enhanced electrochemical capacitance of nitrogen-doped carbon gels synthesized by microwave-assisted polymerization of resorcinol and formaldehyde
SCIE
SCOPUS
- Title
- Enhanced electrochemical capacitance of nitrogen-doped carbon gels synthesized by microwave-assisted polymerization of resorcinol and formaldehyde
- Authors
- Kang, KY; Hong, SJ; Lee, BI; Lee, JS
- Date Issued
- 2008-07
- Publisher
- ELSEVIER SCIENCE INC
- Abstract
- Nitrogen-doped carbon gels were synthesized by ammonia-assisted carbonization of resorcinol-formaldehyde (RF) polymers obtained under microwave irradiation without any basic catalyst. Compared with the RF polymer synthesized by the conventional hydrothermal method, microwave polymerization produced spherical beads with a higher surface area (1710 m(2)/g vs. 1080 m(2)/g), and smaller (similar to 700 nm vs. similar to 5 mu m) but more uniform bead sizes. The majority of their pores were micropores. As a result, the electrochemical capacitance of microwave-assisted nitrogen-doped carbons was significantly higher than that of materials prepared by the conventional hydrothermal method. Thus microwave-assisted polymerization followed by ammonia-assisted carbonization is a useful method to synthesize nitrogen-doped carbon gels for electrochemical double layer capacitors. (C) 2008 Elsevier B.V. All rights reserved.
- Keywords
- nitrogen-doped carbon gels; microwave-assisted polymerization; electrochemical capacitance; ammonia-assisted carbonization; NANOPOROUS MATERIALS; NANOPARTICLES; ADSORPTION; AG
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/22580
- DOI
- 10.1016/j.elecom.2008.05.029
- ISSN
- 1388-2481
- Article Type
- Article
- Citation
- ELECTROCHEMISTRY COMMUNICATIONS, vol. 10, no. 7, page. 1105 - 1108, 2008-07
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- There are no files associated with this item.
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