Current–Voltage Curves for Ion-Exchange Membranes: A Method for Determining the Limiting Current Density

Barragán, V.M.; Ruı́z-Bauzá, C.

doi:10.1006/jcis.1998.5649

Cited by 89 publications

(64 citation statements)

References 15 publications

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“…4.95). Moreover, similar decreasing trends of the l plateau values with the electrolyte concentration were also found in previous studies [106,107]. Kim and Lawler attributed the effect of the electrolyte concentration to an increase in the amount of ionic charge created in the space charge region [90].…”

Section: Role Of M +N Ions On Coupled Convectionsupporting

confidence: 87%

Determination of transport properties of Ni(II) through a Nafion cation-exchange membrane in chromic acid solutions

Martí-Calatayud

García-Gabaldón

Pérez-Herranz

et al. 2011

Journal of Membrane Science

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Acknowledgements / Agradecimientos / AgraïmentsEn primer lugar quisiera agradecer a Valentín y a Montse por haberme dado la oportunidad de investigar con ellos, por introducirme en un mundo que me ha fascinado, por haberme dirigido, por haberme ayudado en momentos de desasosiego; porque, en definitiva, creo que hemos formado un gran equipo.Quisiera agradecer a la Universitat Politècnica de València la financiación recibida para realizar la tesis. En general, he de agradecer al sistema de educación pública que ha permitido que un hijo de trabajadores como yo haya podido llegar hasta aquí. Además, quiero aprovechar para exigir un sistema de educación público, de calidad, e igualitario, que forme a personas con espíritu crítico y libre; puesto que sólo así se conseguirá que progresemos como sociedad.I would also like to thank to all the people from the group of Chemical Process Engineering of the RWTH Aachen University, especially to Matthias Wessling and Said Abdu, for accepting me in their research group. They have been very kind to me and I have learnt a lot from them and from this fruitful and unforgettable experience in Aachen.También quisiera agradecer a Daniella Buzzi por haberme dejado ser su "chefinho", por tantos momentos buenos y algún que otro momento crítico vividos juntos, porque es bonito saber que tengo una gran amiga al otro lado del charco.Gracias al Grupo IEC, en especial a mis compañeros, con los que he pasado más momentos juntos. Ellos han sido mi familia investigadora. Gracias a Isaac y Carlos, porque han sido para mí un referente, a Jordi y Ramón, porque han estado desde el principio, han sido como mis hermanos, y a Vir y Tepe, ellas han contribuido a que haya un ambiente de trabajo inmejorable! Quiero también dar las gracias al resto de componentes del grupo por su ayuda, en especial a Emma Ortega, a José Luis Guiñón por su ayuda con los equilibrios, y a Anna Igual porque con su energía consigue contagiar su pasión por la investigación.El fruto del trabajo de todos estos años tampoco sería posible sin los momentos vividos junto a mis amigos, el "Kanchy". Ellos son "los de toda la vida", los que siempre han estado, están y estarán ahí. Quisiera hacer mención especial a Lidia por su ayuda con la Tesis, y cómo no, a Sergio, porque juntos hemos arreglado el mundo un millón de veces… ¡para volverlo a destrozar otras tantas! No quiero olvidarme de ninguna de las personas con las que he coincidido y he pasado buenos momentos tanto en Valencia, como en Berlín o en Aachen… Maite, Laura, Guillaume… es imposible nombrarlos a todos… pero quiero agradecer en especial a Tania, porque con ella no existe el tiempo ni la distancia, sé que siempre está ahí a mi lado.Ha arribat el moment d'agrair a les quimixiques els grans moments viscuts. Amb elles hem format una gran família. Em sent molt afortunat d'haver caigut en un grup tan de "puça mare": gràcies a les Silvies, Elena, Gabriel·la, Angeleta, Rosa de Xeraco, Alicia, i en especial a Susana, la meua companya de batalles, i a Ingrid, una gran amiga.Per últim...

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Section: Role Of M +N Ions On Coupled Convectionsupporting

confidence: 87%

Determination of transport properties of Ni(II) through a Nafion cation-exchange membrane in chromic acid solutions

Martí-Calatayud

García-Gabaldón

Pérez-Herranz

et al. 2011

Journal of Membrane Science

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“…[1] in the diffusion boundary layer under the constraint of electroneutrality (z + C + + z − C − = 0) and zero coion flux (J − = 0) give…”

Section: Limiting Current Densitymentioning

confidence: 99%

“…The limiting current density is readily calculated from the Eq. [1]. It was assumed that only one electrolyte, C + A − , is present and that the membrane is ideally permselective to cations.…”

Section: Limiting Current Densitymentioning

confidence: 99%

“…The shape of the I-V curve in an ion-exchange membrane varies with the external conditions, such as concentration (1,3), flow rate (9), and the physicochemical conditions of the membrane surface (4). Taking into account the classical theory of concentration polarization, studies have been carried out in order to determine the transport phenomena in an ion-exchange membrane using I-V curves.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Electrolytes on the Transport Phenomena in a Cation-Exchange Membrane

Choi

Lee

Moon

2001

Journal of Colloid and Interface Science

176

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“…Rapp and Pfromm [14] modified this method when they used the 4 th order polynomial regression of R vs. 1/I curve and limiting current was determined by its minimum. Barragán and Ruíz-Bauzá [15] described another method of evaluating experimental currentvoltage curves. They derived the equation which permits the adjustment of experimental data where one of the adjustment parameters is i lim , but this method is only applicable when measured current densities are below the limiting current density.…”

Section: Limiting Currentmentioning

confidence: 99%

A Novel Method for Limiting Current Calculation in Electrodialysis Modules

Káňavová

Machuča

2014

Period. Polytech. Chem. Eng.

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.1 ElectrodialysisElectrodialysis is an electrically-driven membrane separation process using ion exchange membranes to separate ions from the solution. The most frequent and well-known applications of electrodialysis are e.g. desalination of brackish water, production of edible salt from seawater, desalination of cheese whey, potassium tartrate removal from wine [1]. Electrodialysis has been successfully applied also in separation of organic acids, e.g. oxalic acid [2] and formic acid from wastewaters [3], to recover free malic acid from its salt [4] or to recover galacturonic acid from sugar beet pulp's pectin hydrolysate [5], and in food processing, e.g. desalting of soy sauce [6] or fruit juice deacidification [7]. Electrodialysis (ED) module is composed of a membrane stack placed between the cathode and the anode. The membrane stack consists of alternating cation and anion exchange membranes separated by spacers to form individual cells. Spacers separate membranes and provide mixing of the solution in cells.When the electric potential difference is applied, cations moving towards cathode can pass only through cation exchange membranes (CM) and anions moving towards anode can pass only through anion exchange membranes (AM), assuming absolute selectivity for counter-ions. That means the alternating arrangement of membranes enables the ion accumulation in the space defined by CM on the anode side and AM on the cathode side of the stack (concentrate cell). On the contrary, ions are removing from the space between AM on the anode side and CM on the cathode side of the stack (diluate cell). The electrodialysis performance can be affected by several process variables: membrane type, number of cell pairs, solution path length in the stack, applied voltage, flow rate and concentration of feed solution, temperature etc. [8,9].

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Current–Voltage Curves for Ion-Exchange Membranes: A Method for Determining the Limiting Current Density

Cited by 89 publications

References 15 publications

Determination of transport properties of Ni(II) through a Nafion cation-exchange membrane in chromic acid solutions

Determination of transport properties of Ni(II) through a Nafion cation-exchange membrane in chromic acid solutions

Effects of Electrolytes on the Transport Phenomena in a Cation-Exchange Membrane

A Novel Method for Limiting Current Calculation in Electrodialysis Modules

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