Electrical double-layer capacitor performance of nitrogen-doped ordered mesoporous carbon prepared by nanotemplating method |
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Authors: | Young-Ha Kim Ick-Jun Kim Byung-Gak Min Soo-Jin Park |
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Institution: | 1. Department of Chemistry, Inha University, 253 Nam-gu, Incheon, 402-751, South Korea 2. Battery Research Group, Korea Electrotechnology Research Institute, 28-1, Seongju-dong, Changwon, 641-102, South Korea 3. Department of Polymer Science and Engineering, Chungju National University, Chungju, Chungbuk, 380-702, South Korea
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Abstract: | In this work, the electrical double-layer capacitive properties of nitrogen-doped ordered mesoporous carbons (N-OMCs) were investigated. Ordered mesoporous carbons (OMCs) with 3D body-centered Ia3d structure has been prepared by KIT-6 mesoporous silica as a hard template with aniline for N-OMC and sucrose for Su-OMC as a carbon precursor. Using the different carbon precursor, moderate amounts of nitrogen atoms could be doped to the OMC structures. The obtained materials were characterized by powder X-ray diffraction (XRD), nitrogen adsorption isotherms at 77 K, elemental analysis, and X-ray photoelectron spectroscopy (XPS). Prepared OMCs had mesopore properties such as a high surface area with narrow pore-size distribution. From cyclic voltammograms (CVs) test, N-OMC compared to Su-OMC exhibit higher capacitance and fast charge/discharge characteristics, which results from their pseudo-capacitive effect of incorporated nitrogen atoms. It was thought that N-OMC prepared by the nanotemplating method with KIT-6 and aniline were suitable electrode materials for electrical double-layer capacitors. |
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