A First Course in Ion Permeable MembranesElectrochemical Consultancy, 1997 - 255 pagine |
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Pagina 130
... diffusion coefficient is significantly higher . The diffusion coefficient for oxygen in the anion permeable , hydrocarbon polymer , Neosepta ACH - 45T , has a value within the range found for the perfluorinated polymers , but the ...
... diffusion coefficient is significantly higher . The diffusion coefficient for oxygen in the anion permeable , hydrocarbon polymer , Neosepta ACH - 45T , has a value within the range found for the perfluorinated polymers , but the ...
Pagina 135
... coefficient , K , are determined independently , and the diffusion coefficient is estimated from ( equation 3.29 ) . Isotope studies of proton transport are problematic because " hydrogen species " can move through the membrane as ...
... coefficient , K , are determined independently , and the diffusion coefficient is estimated from ( equation 3.29 ) . Isotope studies of proton transport are problematic because " hydrogen species " can move through the membrane as ...
Pagina 139
... diffusion coefficient of water has been determined by isotopic labelling [ 10,20,86 ] using perfluorinated membranes in several ionic forms . Again , when the membrane is in the proton form , care must be taken to separate water diffusion ...
... diffusion coefficient of water has been determined by isotopic labelling [ 10,20,86 ] using perfluorinated membranes in several ionic forms . Again , when the membrane is in the proton form , care must be taken to separate water diffusion ...
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A First Course in Ion Permeable Membranes Thomas A. Davis,J. David Genders,Derek Pletcher Visualizzazione estratti - 1997 |
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amine anion anion and cation anode anolyte applications aqueous domains aqueous solution back migration bipolar membrane carboxylate polymer cathode catholyte cation exchange membrane cation permeable membrane cell voltage charge Chem chemical chemistry chlor-alkali chlor-alkali industry chloride co-ions commercial membranes concentration conductivity counter ions crosslinking current density current efficiency depleting determined diffusion coefficient dilute divinylbenzene electrical Electrochem electrodialysis stack electrolyte solution Electrosynthesis equation equivalent weight example Figure fixed ionic groups fluorocarbon flux gradient H.L. Yeager H₂ H₂O Hence hydration increase interface ion exchange ion exchange capacity ion permeable membranes Ionomer layer manufacture membrane pairs membrane polymer Membrane Sci membrane surface metal mole molecules monomers NaCl Nafion NaOH Neosepta oxidation perfluorinated membranes perfluorinated polymers perfluorinated sulfonate pretreatment properties proton resistance salt splitting sodium hydroxide sodium sulfate species stability stream structure styrene/divinylbenzene copolymers sulfonate sulfonate polymer sulfuric acid temperature transport number water content