When operating electrodialysis equipment with ion exchange membranes, the diffusion coefficient in the membrane must be predetermined. We derived an equation to estimate the diffusion coefficient with only one unknown factor by assuming that the mobility of counter-ions in the membrane was proportio
The Influence of the Concentration Dependence of the Diffusion Coefficient on the Finite–length Warburg–type Impedance of an Ion Exchange Membrane
✍ Scribed by Mareev, S.A.; Pismenskaya, N.D.; Nikonenko, V.V.; Sistat, P.; Pourcelly, G.
- Book ID
- 121832445
- Publisher
- Elsevier
- Year
- 2012
- Tongue
- English
- Weight
- 168 KB
- Volume
- 44
- Category
- Article
- ISSN
- 1877-7058
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The influence of dc electric current on the electrochemical impedance and the linearity of the current-voltage relationship in ion-exchange membrane systems, has been investigated. The system under study is constituted by a membrane with negative fixed-charge and two diffusion boundary layers on bot
## Abstract **Summary:** Vapor diffusion coefficients in polymeric membranes were evaluated from dynamic permeation experiments. A membrane separated the diffusion cell into two parts – upstream and downstream. At the start of the experiment the concentration change in the upstream part (feed side)