Issue 43, 2006
From the journal:

Physical Chemistry Chemical Physics

Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films†

Mario Tagliazucchi,a   Doris Grumelli‡a  and  Ernesto J. Calvo*a  

* Corresponding authors

a INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina

Abstract

Electrodes modified layer-by-layer by self-assembly of redox active polyelectrolytes comprised of osmium bipyridine–pyridine derivatized poly(allyl-amine) and poly(vinyl) sulfonate have been studied by EQCM, ellipsometry, cyclic voltammetry and electrochemical impedance spectroscopy in aqueous solutions of different anions and cations. Redox driven swelling by solvent exchange during oxidation, in excess to the hydration number, occurs by perturbation of the equilibrium between the osmotic and elastic forces as a result of the electrochemical injection of charge into the film. The exchanged mass and volume change during redox switching strongly depends on the nature of the anion under anion Donnan permselectivity conditions.

Graphical abstract: Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/B609341H
Article type
Paper
Submitted
30 Jun 2006
Accepted
14 Aug 2006
First published
24 Aug 2006

Phys. Chem. Chem. Phys., 2006,8, 5086-5095

Permissions

Request permissions

Nanostructured modified electrodes: Role of ions and solvent flux in redox active polyelectrolyte multilayer films

M. Tagliazucchi, D. Grumelli and E. J. Calvo, Phys. Chem. Chem. Phys., 2006, 8, 5086 DOI: 10.1039/B609341H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements