Results 211 to 220 of about 215,162 (262)

Cation exchange membranes as solid solutions

Journal of Membrane Science, 1985
Abstract The ion exchange equilibrium between KCl and SrCl2 solutions and the cation selective membrane CR61 AZL386 has been examined. Equilibrium isotherms are measured for membrane—electrolyte equilibria for two total concentrations of Cl−in the electrolyte solution and at three different temperatures.
T. Holt, T. Førland, S.K. Ratkje
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Studies on heterogeneous cation-exchange membranes

Reactive and Functional Polymers, 2000
Abstract As the preparation of interpolymer type ion-exchange membranes involves the use of hazardous chemicals like chlorosulfonic acid and chloromethyl ether, it was envisaged to prepare heterogeneous membranes through a simple technique involving casting of a solution containing a binder and a polyelectrolyte.
Punita V Vyas, B.G Shah, G.S Trivedi, P Ray, S.K Adhikary, R Rangarajan   +5 more
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Water transport in cation exchange membranes

Journal of Membrane Science, 1992
Abstract The time variation in emf caused by pressure differences has been used to find transference coefficients of water as well as water permeabilities in ion exchange membranes. Previous experimental methods have been corrected and facilitated. The cation exchange membrane CR61 AZL 386 was investigated. Equilibrium solutions contained 10−4 kmol-m−
Tatsuhiro Okada, Signe Kjelstrup Ratkje, Harald Hanche-Olsen   +2 more
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Forbidden ion transport through cation exchange membranes

Talanta
Cation exchange membranes (CEMs) are widely used in many applications. The fixed anionic groups e.g., COO-, -SO3-, etc. in the polymer matrix ideally allows the passage only of oppositely charged cations, driven by a potential or a concentration gradient. Anions, charged negative, the same as the membrane matrix, cannot pass through the membrane due to
Chandan K, Chaudhary, Purnendu K, Dasgupta   +1 more
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Electrochemical properties of cation exchange membranes

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1987
An investigation has been carried out on the effect of concentration and temperature of electrolytes on the conductivity and transport number of a cation-exchange membrane. The membrane was prepared by modification of high-molecular weight polyethylene (Mn= 1.19 × 106) with styrene and divinylbenzene and following sulphonation.
A. D. Dimov, I. Alexandrova
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Interactions between large organic cations and cation exchange membranes

Journal of Applied Electrochemistry, 1986
Interactions between cation exchange membranes and large organic cations have been studied; namely (1) adsorption and electrodialytic desorption of cationic surface active agents, and (2) change in transport properties of the membranes by adsorption.
Toshikatsu Sata, Kuniaki Takata, Yukio Mizutani   +2 more
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Alkali‐Stable Cations and Anion Exchange Membranes

Chemistry – A European Journal
AbstractAnion exchange membranes (AEMs) based energy conversion and storage devices have attracted attention as an innovative technology due to their advantageous alkaline catalytic kinetics and cost‐effectiveness. AEMs play a crucial role in these devices and have shown significant progress in terms of ionic conductivity, mechanical properties ...
Qihang Zhang, Rong Ren, Liqiang Yin, Licheng Sun   +3 more
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Microheterogeneity in Native and Cation-Exchanged Nafion Membranes

The Journal of Physical Chemistry B, 2012
2-(4'-Pyridyl)benzimidazole (4PBI) has been used to investigate the microheterogeneity of water nanochannels of Nafion membranes at two different hydration levels. Native as well as cation-exchanged Nafion membranes are found to protonate one of the two monoprotonated forms of 4PBI selectively.
IYER, ESS, DATTA, A
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Salt splitting with cation-exchange membranes

Desalination, 2007
The regeneration of acid and base from different salt forms of potassium by electrodialysis (ED) method was investigated in a two-compartment membrane electrolysis cell. Three types of commercial cation-exchange membranes (CEMs) were used to recover acids from solutions containing salt forms of metals.
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Water transport through cation exchange membranes

Desalination, 1967
Abstract Measurements of moles of water transported for the passage of a faraday of electricity (tw) through crosslinked phenolsulfonate membranes immersed in solutions of NaCl in the concentration range 0.01–5.2N and in 0.01N LiCl are presented. Other parameters of the membrane phase, viz.
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