Theory of Ion Transport in Electrochemically Switchable Nanoporous Metallized Membranes

被引：21

作者：

Amatore, Christian ^{[1
]}

Alexander, I. Oleinick ^{[1
,2
]}

Svir, Irina ^{[1
,2
]}

机构：

[1] Ecole Normale Super, Dept Chim, UMR CNRS ENS UPMC PASTEUR 8640, F-75231 Paris 05, France

[2] Kharkov Natl Univ Radioelect, Math & Comp Modelling Lab, UA-61166 Kharkov, Ukraine

来源：

CHEMPHYSCHEM | 2009年 / 10卷 / 01期

关键词：

electrochemistry; ion transport; membranes; nanostructures; transference numbers; MESOPOROUS STRUCTURES; STEADY-STATE; DIFFUSION; MICROELECTRODES; SIMULATION; ELECTRODES; CHRONOAMPEROMETRY; ELECTROLYTES; MICRODISK; MIGRATION;

D O I：

10.1002/cphc.200800481

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A physicomathematical model of ion transport through a synthetic electrochemically switchable membrane with nonometric metal-plated pores is presented. Due tc the extremely small size of the cylindrical pores, electrical double layers formed inside overlap, and thus, strong electrostatic fields whose intensities vary across the cross-sections of the nanopores are created. Based on the proposed model a relationship between the relative electrostatic energies experienced by ions in the nanopores and the potential applied to the membrane is established. This allows the prediction of transference numbers and explains quantitatively the ion-transport switching capability of such synthetic membranes. The predictions of this model agree satisfactorily with previous experimental data obtained for this type of devices by Martin and co-workers.

引用

页码：211 / 221

页数：11

共 27 条

[1] First direct experimental evidence of migration contributions through monitoring of concentration profiles at low supporting electrolyte concentration [J].

Amatore, C ;

Knobloch, K ;

Thouin, L .

ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (09) :887-891

[2] Electrochemistry within a limited number of molecules:: Delineating the fringe between stochastic and statistical behavior [J].

Amatore, C ;

Grün, F ;

Maisonhaute, E .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (40) :4944-4947

[3] A new and powerful approach for simulation of diffusion at microelectrodes based on overlapping sub-domains: application to chronoamperometry at the microdisk [J].

Amatore, C ;

Svir, I .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2003, 557 :75-90

[4] ELECTROCHEMICAL KINETICS AT MICROELECTRODES .5. MIGRATIONAL EFFECTS ON STEADY OR QUASI-STEADY-STATE VOLTAMMOGRAMS [J].

AMATORE, C ;

FOSSET, B ;

BARTELT, J ;

DEAKIN, MR ;

WIGHTMAN, RM .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 256 (02) :255-268

[5] CHARGE-TRANSFER AT PARTIALLY BLOCKED SURFACES - A MODEL FOR THE CASE OF MICROSCOPIC ACTIVE AND INACTIVE SITES [J].

AMATORE, C ;

SAVEANT, JM ;

TESSIER, D .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1983, 147 (1-2) :39-51

[6] Theoretical trends of diffusion and reaction into tubular nano- and mesoporous structures: General physicochemical and physicomathematical modeling [J].

Amatore, Christian .

CHEMISTRY-A EUROPEAN JOURNAL, 2008, 14 (18) :5449-5464

[7] Theory and simulation of diffusion-reaction into nano- and mesoporous structures.: Experimental application to sequestration of mercury(II) [J].

Amatore, Christian ;

Oleinick, Alexander ;

Klymenko, Oleksiy V. ;

Delacote, Cyril ;

Walcarius, Alain ;

Svir, Irina .

ANALYTICAL CHEMISTRY, 2008, 80 (09) :3229-3243

[8] Construction of optimal quasi-conformal mappings for the 2D numerical simulation of diffusion at microelectrodes. Part 2. Application to recessed or protruding electrodes and their arrays [J].

Amatore, Christian ;

Oleinick, Alexander I. ;

Svir, Irina .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2006, 597 (01) :77-85

[9]

[Anonymous], 1995, PHYS ELECTROCHEMISTR

[10]

Bard A.J., 2001, Electrochemical Methods: Fundamentals and Applications, V2nd

← 1 2 3 →