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Membrane Potential Across Anion-Exchange Membranes in Acidic Solution System

Naomichi Kimura, Hidetoshi Matsumoto, Yuichi Konosu, Ryotaro Yamamoto, Mie Minagawa, Akihiko Tanioka

J Colloid Interface Sci. 2005 Jun 1;286(1):288-93.

PMID: 15848430

Abstract:

The membrane potential across anion-exchange membranes in H2SO4 and Na2SO4 solutions was measured, and the experimental results were fitted to the theory in the 2-1 electrolyte system based on the Donnan equilibrium and the Nernst-Planck flux equations. For the Na2SO4 solution, the Donnan potential makes a significant contribution to the membrane potential, but for the H2SO4 solution, the diffusion potential significantly contributes to the membrane potential. The diffusion potential has a greater contribution to the membrane potential across AEM-2 with a high water content than that across AEM-1. These results suggest that a proton with a high mobility can move without substantial influence of electrostatic interaction in a positively charged membrane.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP1030123900 AEM1 AEM1 1030123-90-0 Price
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