Ionic Group Derivitized Nano Porous Carbon Electrodes for Capacitive Deionization
Marc Andelman
Mespilusinc., Worcester, USA.
DOI: 10.4236/msce.2014.23002   PDF    HTML   XML   13,970 Downloads   18,208 Views   Citations

Abstract

Capacitance for electrostatic adsorption forms primarily within a Debye length of the electrode surface. Capacitive carbon electrodes were derivatized with ionic groups by means of adsorbing a surfactant in order to test the theory that attached ionic groups would exclude co-ions and increase coulombic efficiency without the need for an added charge barrier membrane. It has been discovered that capacitive electrodes surface derivatized with ionic groups become polarized and intrinsically more coulombically efficient.

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Andelman, M. (2014) Ionic Group Derivitized Nano Porous Carbon Electrodes for Capacitive Deionization. Journal of Materials Science and Chemical Engineering, 2, 16-22. doi: 10.4236/msce.2014.23002.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Andelman, M.D. (1998) The Flow through Capacitor: A New Tool in Wastewater Purification. Filtration Separation, 35, 345.
[2] Andelman, M.D. (2004) Charge Barrier Flow through Capacitor. US6709560.
[3] Andelman, M. (2011) Flow through Capacitor Basics. Separation and Purification Technology, 80, 262-269.
http://dx.doi.org/10.1016/j.seppur.2011.05.004
[4] Lee, L.Y., Ng, H.Y., et al. (2009) Integrated Pretreatment with Capacitive Deionization for Reverse Osmosis Reject Recovery from Water Reclamation Plant. Water Research, 43, 4769-4777.
http://dx.doi.org/10.1016/j.watres.2009.08.006
[5] Biesheuvel, P.M. and van der Wal, A. (2010) Membrane Capacitive Deionization. Journal of Membrane Science, 346, 256-262. http://dx.doi.org/10.1016/j.memsci.2009.09.043
[6] Conway, B.E. (1999) Electrochemical Supercapacitors: Scientific Fundamentals and Technological Applications. Springer. http://dx.doi.org/10.1007/978-1-4757-3058-6
[7] Solomon, F. (1983) Method for Forming an Electrode Active Layer or Sheet. US4379772.
[8] Hei, H.H. (2006) Adsorption of Ionic Surfactants on Active Carbon Cloth. Masters of Chemical Engineering Thesis, Hong Kong University, Hong Kong.
[9] Andelman, M.D. (1997) Non-Fouling Flow-Through Capacitor. US5620597.

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