File(s) not publicly available

Reason: This item is currently closed access.

Voltammetry with liquid/liquid microarrays: characterization of membrane materials

journal contribution
posted on 02.01.2013 by Mark Platt, Robert A.W. Dryfe, Edward P.L. Roberts
A simple nondestructive method is presented to characterize the physical properties of ultrafiltration membranes. The technique utilizes voltammetry at the interface between two immiscible electrolyte solutions (ITIES) and has been applied to commercially available γ-alumina membranes. Upon the application of a potential difference across the ITIES, the voltammetric response resulting from an ion transfer is a direct measure of the membrane porosity. The technique has been applied to the measurement of the fractional porous area (porosity) and the membrane thickness. The reported technique offers advantages over existing methods such as being easy to use, reproducible, inexpensive, and nondestructive. Furthermore, unlike many optical techniques, this method is not limited by a minimum nominal pore size and has thus been used to make measurements when the reported nominal pore diameter is as small as 20 nm.

History

School

  • Science

Department

  • Chemistry

Citation

PLATT, M., DRYFE, R.A.W. and ROBERTS, E.P.L., 2003. Voltammetry with liquid/liquid microarrays: characterization of membrane materials. Langmuir, 19 (19), pp.8019- 8025.

Publisher

© American Chemical Society

Version

NA (Not Applicable or Unknown)

Publication date

2003

Notes

This article is closed access.

ISSN

0743-7463

Language

en

Exports

Logo branding

Keyword(s)

Exports