Transport within ion-exchange membranes

Wallace, R. Jay; Ampaya, J.P.

doi:10.1016/s0011-9164(00)80051-x

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…We have found the conductivity of the membrane to be 1.99 mS/cm that is comparable to the results reported 33…”

Section: Resultssupporting

confidence: 90%

“…This is the overall electrode potential drop, commonly known as the decomposition voltage. The decomposition voltage has been defined as the potential developed at the electrodes primarily due to the electrochemical reactions that are necessary for the passage of direct current through the membrane sample 33…”

Section: Resultsmentioning

confidence: 99%

“…The current–voltage curve is obtained by applying the potential difference across the cell via a DC source and allowing the current to reach a steady state 32. We have calculated the ionic conductivity of the membrane in a similar manner following the procedure described elsewhere 33…”

Section: Methodsmentioning

confidence: 99%

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Synthesis of anion exchange polystyrene membranes for the electrolysis of sodium chloride

Sachdeva¹,

Ram²,

Singh³

et al. 2008

AIChE Journal

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in Wiley InterScience (www.interscience.wiley.com).We have prepared a cross-linked polystyrene anion exchange composite membrane for the electrolysis of sodium chloride to produce sodium hydroxide by selective removal of chloride ions. The composite membrane is homogeneously modified by gas phase nitration, followed by amination using hydrazine hydrate, and further reaction with dichloroethane and triethylamine to introduce quaternary ammonium charges on it. We showed that the membrane is specific to the transport of chloride ions through its pores. The performance of the membrane has been evaluated in terms of current efficiency and power consumption, and the effect of various parameters like current density, initial salt concentration, and circulation rate is studied. The maximum current efficiency obtained is 96.

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“…We have found the conductivity of the membrane to be 1.99 mS/cm that is comparable to the results reported 33…”

Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of anion exchange polystyrene membranes for the electrolysis of sodium chloride

Sachdeva¹,

Ram²,

Singh³

et al. 2008

AIChE Journal

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“…The distribution coefficient of counterions in the ionexchange membrane was measured by the method suggested by Wallace and Ampaya (1974). The thickness of the membrane was measured by the micrometer within a precision of ±0.001 mm.…”

Section: Methodsmentioning

confidence: 99%

The Interdiffusion of Counterions in a Cation-Exchange Membrane

Huang¹,

Lian²

1979

Ind. Eng. Chem. Fund.

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The apparent interdiffusion coefficient has been determined from the bulk concentration of electrolyte solution and interdiffusion time. The integral interdiffusion coefficient can be estimated from the results using the Donnan membrane equilibrium. The data show that the interdiffusion is controlled by the component with low concentration, and the relationships between the apparent interdiffusion coefficient and temperature can be expressed by an Arrhenius plot for various interdiffusion systems. In the cation exchange membrane Selemion CMV the apparent interdiffusion coefficient DAB and interdiffusion activation energy EAB for various systems have magnitudes in the relative order DH-li < DH-Na < Dh_k and EH_Li > EH_Na > EH_K, respectively. The interdiffusion of counterions is independent of the kinds of co-ions at low concentration of the solution. There is an increase of integral interdiffusion coefficient and a decrease of interdiffusion activation energy with increasing bulk concentration of the electrolyte solution.

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Effect of membrane matrix on the transport of potassium ions

Wallace¹

1974

J of Applied Polymer Sci

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Transport within ion-exchange membranes

Cited by 11 publications

References 9 publications

Synthesis of anion exchange polystyrene membranes for the electrolysis of sodium chloride

Synthesis of anion exchange polystyrene membranes for the electrolysis of sodium chloride

The Interdiffusion of Counterions in a Cation-Exchange Membrane

Effect of membrane matrix on the transport of potassium ions

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