Electric Field Mediated Ion Transport Through Charged Mesoporous Membranes


Schmuhl, Riaan and Lint, W.B. Samuel de and Keizer, Klaas and Berg, Albert van den and Elshof, Johan E. ten (2003) Electric Field Mediated Ion Transport Through Charged Mesoporous Membranes. In: Vasilis N. Burganos & Richard D. Noble & Masashi Asaeda & Andre Ayral & Johann D. LeRoux (Eds.), Membranes - Synthesis, Properties and Applications. Materials Research Society, Warrendale, PA, AA9.3.1-AA9.3.6. ISBN 9781558996892

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Abstract:The transport of ions from aqueous solutions through a stacked Au/alpha-alumina/gamma-alumina/Au membrane under the influence of a dc potential difference is reported. The membrane shows high cation permselectivity at ionic strengths of ~1 mM at pH 4.3-6.5, which is associated with a combination of anion adsorption and double-layer overlap inside the pores of the gamma-alumina layer. The cation flux can be controlled by ionic strength, dc potential difference and pH.
Item Type:Book Section
Additional information:MRS Proceedings 752
Copyright:© 2003 Materials Research Society
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/40809
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