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http://dx.doi.org/10.5229/JKES.2005.8.2.077

Characteristics of Capacitive Deionization Process using Carbon Aerogel Composite Electrodes  

Lee, Gi-Taek (Eco-nano Research Center, Korea Institute of Science and Technology)
Cho, Won-Il (Eco-nano Research Center, Korea Institute of Science and Technology)
Cho, Byung-Won (Eco-nano Research Center, Korea Institute of Science and Technology)
Publication Information
Journal of the Korean Electrochemical Society / v.8, no.2, 2005 , pp. 77-81 More about this Journal
Abstract
Porous-composite electrodes have been developed using silica gel, which reduce carbon aerogel usage with high cost. Silica gel powder was added to the carbon aerogel to simplify the manufacturing procedure and to increase the wet-ability, the mechanical strength and the CDI efficiency. Porous composite electrodes composed of carbon aerogel and silica gel powder were prepared by paste rolling method. Carbon aerosol composite electrodes with $10\times10cm^2$ are placed face to face between spacers, and assembled the four-stage series cells for CDI process. Each stage is composed of 45 cells. Four-stage series cells (flow through cells) for CDI process are put in continuous-system reactor containing 1,000ml-NaCl solution bath of 1,000 ppm. The four-stage series cells with carbon aerogel electrodes are charged at 1.2V and are discharged at 0.001V, and then read the current. Conclusively, removal efficiencies of ions using the four-stage series cells composed of carbon aerogel composite electrodes show good removal efficiency of $99\%$ respectively.
Keywords
Capacitor; Capacitive deionization; Carbon aerogel; Composite electrode.;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 R. V. Perez, M. L. Rodriguez and J. Mengual, 'Characterizing an electrodialysis reversal pilot plant', Desalination, 137, 199 (2001)   DOI   ScienceOn
2 R. W. Pekala, J. C. Farmer, C. T. Alviso, T. D. Tran, S. T. Mayer, J. M. Miller and B. Dunn, 'Carbon aerogels for electrochemical applications', J Non-Cryst. Solids, 225, 74 (1998)   DOI   ScienceOn
3 J. Fricke and T. Tillotson, 'Aerogels: production, characterization, and applications', Thin Solid Films, 297, 212 (1997)   DOI   ScienceOn
4 J. C. Farmer, D. V. Fix, G V. Mack, R. W. Pekala, and J. F. Poco, J. Appl. Electrochem., 26, 1007 (1996)
5 J. C. Farmer, S. M. Bahowick, J. E. Harrar, D. V. Fix, R. E. Martinelli, A. K. Vu and K. L. Carroll, 'Electrosorption of chromium ions on carbon aerogel electrodes as a means of remediating ground water', Energy & Fuels, 11, 337 (1997)   DOI   ScienceOn
6 Lawrence W. Hrubesh, 'Aerogel applications', J. Non-Cryst. Solids, 225, 335 (1998)   DOI   ScienceOn
7 Andelman, M. D., 'Flow-Though Capacitor', U.S. Patent No. 5,415,768 (1995)
8 Farmer, J., 'Method and Apparatus for Capacitive Deionization, Electrochemical Purification, and Regeration of Electrodes', U.S. Patent No. 5,425,858 (1995)
9 C. M. Yang, W. H. Choi, B. W. Cho, H. S. Han, K. S. Yun and W. I. Cho, 'Porous carbon Aerogel-silica gel composite electrodes for capacitive deionization process', J. of the Korean Electrochemical Society, 7, 38 (2004)   과학기술학회마을   DOI   ScienceOn
10 Spiegler KS and El-Sayed YM, 'The energetics of desalination processes', Desalination, 134, 109 (2001)   DOI   ScienceOn
11 Perez RV, Rodriguez ML and Mengual JAI, 'Characterizing an electrodialysis reversal pilot plant' Desalination, 137, 199 (2001)   DOI   ScienceOn
12 J. A. Trainham and J. Newman, J. Electrochem. Soc., 124, 1528 (1977)   DOI   ScienceOn
13 W. J. Blaedel and J. C. Wang, 'Flow electrolysis on a reticulated vitreous carbon electrode' Anal. Chem. 51, 799 (1979)   DOI   ScienceOn
14 M. Matlosz and J. Newman, 'Experimental investigation of a porous carbon electrode for the removal of mercury from contaminated brine' J. Electrochem. Soc., 133, 1850 (1986)   DOI
15 Joseph C. Farmer and David V. Fix, 'Capacitive deionization of NaCl and NaNO3 solutions with carbon aerogel electrodes' J. Electrochem. Soc., 143, 159 (1996)   DOI
16 Andrew Porteous, Desalination Technology, Applied Science Publishers, London (1983)
17 K. S. Spiegler and Y. M. El-Sayed, 'The energetics of desalination processes', Desalination, 134, 109 (2001)   DOI   ScienceOn