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Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

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Enhanced electrochemical capacitance of nitrogen-doped carbon gels synthesized by microwave-assisted polymerization of resorcinol and formaldehyde

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Title
Enhanced electrochemical capacitance of nitrogen-doped carbon gels synthesized by microwave-assisted polymerization of resorcinol and formaldehyde
Other Titles
Enhanced electrochemical capacitance of nitrogen-doped carbon gels synthesized by microwave-assisted polymerization of resorcinol and formaldehyde
Author
Kang, Kyung YeonHong, Suk JoonLee, Burtrand I.Lee, Jae Sung
Keywords
nitrogen-doped carbon gels; microwave-assisted polymerization; electrochemical capacitance; ammonia-assisted carbonization
Issue Date
2008-07
Publisher
ELSEVIER SCIENCE INC
Citation
ELECTROCHEMISTRY COMMUNICATIONS, v.10, no.7, pp.1105 - 1108
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
URI
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DOI
10.1016/j.elecom.2008.05.029
ISSN
1388-2481
Appears in Collections:
ECHE_Journal Papers
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