Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 497775
Title Theory of Water Desalination by Porous Electrodes with Immobile Chemical Charge
Author(s) Biesheuvel, P.M.; Hamelers, H.V.M.; Suss, M.E.
Source Colloids and Interface Science Communications 9 (2015). - ISSN 2215-0382 - p. 1 - 5.
DOI http://dx.doi.org/10.1016/j.colcom.2015.12.001
Department(s) Physical Chemistry and Soft Matter
Sub-department of Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2015
Abstract

In capacitive deionization (CDI), water is desalinated by storing ions in electrical double layers (EDLs) within the micropores of charged porous carbon electrodes. Recent experiments using chemically modified electrodes have shown differing, novel phenomena such as "inverted CDI," "enhanced CDI," and "inversion peaks." We here present an EDL and dynamic model which includes immobile chemical charge in the micropores and show that the models predict these disparate experimental observations. Our model also makes predictions for a previously undiscovered operational regime with higher salt adsorption, which we term extended voltage CDI.

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