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http://dx.doi.org/10.9713/kcer.2012.50.6.1043

Influence of Oxygen-/Nitrogen-containing Functional Groups on the Performance of Electrical Double-Layer Capacitor  

Kim, Jieun (Department of Chemical Engineering, Chungnam National University)
Kwon, Young-Kab (Graduate School of Green Energy Technology, Chungnam National University)
Lee, Joong Kee (Center for Energy Convergence, Korea Institute of Science and Technology)
Choi, Ho-Suk (Department of Chemical Engineering, Chungnam National University)
Publication Information
Korean Chemical Engineering Research / v.50, no.6, 2012 , pp. 1043-1048 More about this Journal
Abstract
In this study, activated carbons (ACs) were modified as electrode materials for an electric double layer capacitor (EDLC) by controlling oxygen- and nitrogen-containing functional groups. The morphological and chemical properties of ACs were analyzed through scanning electron microscopy (SEM), fourier transform infrared (FTIR) spectrometer, automatic elemental analyzer (EA) and Boehm titration. Also, charge/discharge tests were performed to investigate the EDLC performance. Oxygen- and nitrogen-containing functional groups were introduced on the surface of ACs through acid and urea treatments, respectively. ACs with nitrogen-containing functional groups showed 2 mA increase of gravimetric discharge capacity and quick achievement of maximum charge/discharge performance. However, ACs with oxygen-containing functional groups showed low discharge capacity and its gradual decrease during further cyclic test, since the functional groups interrupted adsorption/desorption of charges in the electrolyte on the surface of ACs.
Keywords
Activated Carbon; Surface Modification; Oxygen-containing Functional Groups; Nitrogen-containing Functional Groups; Electrical Double-layer Capacitor;
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1 http://203.253.128.6:8088/servlet/eic.wism.EICWeb.
2 Bruke, A., "Ultracapacitor: why, how, and where is the technology," J. Power Sources, 91, 37-50(2000).   DOI   ScienceOn
3 Sharma, P. and Bhatti, T. S., "A Review on Electrochemical Double-layer Capacitors," Energy Conv. Manag., 51, 2901-2912 (2010).   DOI   ScienceOn
4 Frackowiak, E. and Beguin, F., "Carbon Materials for the Electrochemical Storage of Energy in Capacitors," Carbon, 39, 937-950(2001).   DOI   ScienceOn
5 Inagaki, M., Konno, H. and Tanaike, O., "Carbon Materials for Electrochemical Capacitors," J. Power Sources, 195, 7880-7903 (2010).   DOI   ScienceOn
6 Pandolfo, A. G. and Hollenkamp, A. F., "Carbon Properties and Their Role in Supercapacitors," J. Power Source, 157, 11-27(2006).   DOI   ScienceOn
7 Boehm, H. P., "Some Aspects of the Surface Chemistry of Carbon Blacks and Other Carbons," Carbon, 32, 759-769(1994).   DOI   ScienceOn
8 Qu, D., "Studies of the Activated Carbons Used in Double-layer Supercapacitors," J. Power Sources, 109, 403-411(2002).   DOI   ScienceOn
9 Beguin, F. and Frackowiak, E., Carbons for Electrochemical Energy Storage and Conversion Systems, CRC Press, 187(2009).
10 Frackowiak, E., Lota, G., Machnikowski, J., Vix-Guterl, C. and Beguin, F., "Optimisation of Supercapacitors Using Carbons with Controlled Nanotexture and Nitrogen Content," Electrochim. Acta, 51, 2209-2214(2006).   DOI   ScienceOn
11 Lota, G., Grzyb, B., Machnikowska, H., Machnikowski, J. and Frackowiak, E., "Effect of Nitrogen in Carbon Electrode on the Supercapacitor Performance," Chem. Phy. Letters, 404, 53-58(2005).   DOI   ScienceOn
12 Hulicova, D., Kodama, M. and Hatori, H., "Electrochemical Performance of Nitrogen-Enriched Carbons in Aqueous and Non-Aqueous Supercapacitors," Chem. Mater., 18, 2318-2326(2006).   DOI   ScienceOn
13 Boehm, H. P., "Surface Oxides on Carbon and Their Analysis: a Critical Assessment," Carbon, 40, 145-149(2002).   DOI   ScienceOn
14 Goertzen, S. L., Theriault, K. D., Oickle, A. M., Tarasuk, A. C. and Andreas, H. A., "Standardization of the Boehm Titration. Part I. $CO_{2}$ Expulsion and Endpoint Determination," Carbon, 48, 1252-1261(2010).   DOI   ScienceOn
15 Oickle, A. M., Goertzen, S. L., Hopper, K. R., Abdalla, Y. O. and Andreas, H. A., "Standardization of the Boehm Titration: Part II. Method of Agitation, Effect of Filtering and Dilute Titrant," Carbon, 48, 3313-3322(2010).   DOI   ScienceOn
16 Shen, W., Li, Z. and Liu, Y., "Surface Chemical Functional Groups Modification of Porous Carbon," Recent Patents on Chemical Engineering, 1, 27-40(2008).   DOI
17 Seredych, M., Hulicovajurcakova, D., Lu, G. and Bandosz, T., "Surface Functional Groups of Carbons and the Effects of Their Chemical Character, Density and Accessibility to Ions on Electrochemical Performance," Carbon, 46, 1475-1488(2008).   DOI   ScienceOn
18 Chingombe, P., Saha, B. and Wakeman, R. J., "Surface Modification and Characterisation of a Coal-based Activated Carbon," Carbon, 43, 3132-3143(2005).   DOI   ScienceOn
19 Leon, Y., Leon, C. A. and Radovi, L. R., "Interfacial Chemistry and Electrochemistry of Carbon Surfaces," Chem. Phys. Carbon, Marcel Dekker, 24, 213-310(1994).