High-capacitance supercapacitors using nitrogen-decorated porous carbon derived from novolac resin containing peptide linkage

We fabricated nitrogen-decorated porous carbon exhibiting high capacitance per unit volume and unit weight via chemical activation of novolac resin containing peptide linkage. The porosity and the amount of nitrogen atoms were controlled by changing the molecular weight of novolac resin, the added a...

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Bibliographic Details
Published in:	Electrochimica acta Vol. 55; no. 20; pp. 5624 - 5628
Main Authors:	Kim, Yong Jung, Jang, In Young, Park, Ki Chul, Jung, Yong Chae, Oka, Takuyuki, Iinou, Satoshi, Komori, Yasuhiro, Kozutsumi, Toshihiko, Hashiba, Takashi, Kim, Yoong Ahm, Endo, Morinobu
Format:	Journal Article
Language:	English
Published:	Kidlington Elsevier Ltd 01-08-2010 Elsevier
Subjects:	Activation Applied sciences Capacitance Capacitors. Resistors. Filters Carbon Electrical engineering. Electrical power engineering Exact sciences and technology Linkages Nitrogen atom Nitrogen atoms Novolac resin Novolacs Peptides Polymers Porosity Porous carbon Resins Various equipment and components X-ray photoemission spectroscopy Novolac resin Nitrogen atom Capacitance X-ray photoemission spectroscopy Porous carbon Porosity Scanning electron microscopy X ray Electrolytic capacitor Electrode material Carbon Porous material Surface structure Pore size Morphology Novolac Preparation Crosslinked polymer Supercapacitor Photoelectron spectrometry Phenoplasts Physicochemical properties
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Summary:	We fabricated nitrogen-decorated porous carbon exhibiting high capacitance per unit volume and unit weight via chemical activation of novolac resin containing peptide linkage. The porosity and the amount of nitrogen atoms were controlled by changing the molecular weight of novolac resin, the added amount of potassium hydroxide, or both. After chemical activation, positively charged nitrogen atoms (i.e., pyridine/pyrrole) at 400.3 eV in photoemission spectra contributed to both a shift in the point of zero charge toward negative potential and the generation of pseudocapacitance. Suitably developed pores and the positively charged nitrogen atoms make nitrogen-decorated novolac resin-derived porous carbon a promising material for electrodes in high-performance supercapacitors.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0013-4686 1873-3859
DOI:	10.1016/j.electacta.2010.04.094