Complexing properties of poly[3-(aza crown ether) pyrroles] to cobalt2+ and their catalytic properties towards oxygen reduction

H. Korri Youssoufi; M. Hmyene; A. Yassar; F. Garnier

doi:10.1016/0022-0728(95)04379-9

Complexing properties of poly[3-(aza crown ether) pyrroles] to cobalt²⁺ and their catalytic properties towards oxygen reduction

H. Korri Youssoufi
, M. Hmyene
, A. Yassar
, F. Garnier

Centre national de la recherche scientifique

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

A new polypyrrole-carrying aza crown ether in the 3 position has been synthesized, which shows reversible complexing properties towards Co²⁺ ions. The stoichiometry of the cobalt aza crown ether complex varies from 1 : 1 to 1 : 2, depending on the size of the crown cavity. These modified electrodes show an interesting electroactivity towards oxygen reduction in sulfuric acid solution, which increases with film thickness. Oxygen reduction proceeds by a two-electron pathway, and the kinetics of this catalyzed reaction are analyzed by the use of cyclic and rotating disk voltammetries.

Original language	English
Pages (from-to)	187-194
Number of pages	8
Journal	Journal of Electroanalytical Chemistry
Volume	406
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-0728(95)04379-9
Publication status	Published - 30 Apr 1996

Keywords

Aza crown ether
Complexing properties
Polypyrroles

Access to Document

10.1016/0022-0728(95)04379-9

Cite this

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title = "Complexing properties of poly[3-(aza crown ether) pyrroles] to cobalt2+ and their catalytic properties towards oxygen reduction",

abstract = "A new polypyrrole-carrying aza crown ether in the 3 position has been synthesized, which shows reversible complexing properties towards Co2+ ions. The stoichiometry of the cobalt aza crown ether complex varies from 1 : 1 to 1 : 2, depending on the size of the crown cavity. These modified electrodes show an interesting electroactivity towards oxygen reduction in sulfuric acid solution, which increases with film thickness. Oxygen reduction proceeds by a two-electron pathway, and the kinetics of this catalyzed reaction are analyzed by the use of cyclic and rotating disk voltammetries.",

keywords = "Aza crown ether, Complexing properties, Polypyrroles",

author = "\{Korri Youssoufi\}, H. and M. Hmyene and A. Yassar and F. Garnier",

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doi = "10.1016/0022-0728(95)04379-9",

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TY - JOUR

T1 - Complexing properties of poly[3-(aza crown ether) pyrroles] to cobalt2+ and their catalytic properties towards oxygen reduction

AU - Korri Youssoufi, H.

AU - Hmyene, M.

AU - Yassar, A.

AU - Garnier, F.

PY - 1996/4/30

Y1 - 1996/4/30

N2 - A new polypyrrole-carrying aza crown ether in the 3 position has been synthesized, which shows reversible complexing properties towards Co2+ ions. The stoichiometry of the cobalt aza crown ether complex varies from 1 : 1 to 1 : 2, depending on the size of the crown cavity. These modified electrodes show an interesting electroactivity towards oxygen reduction in sulfuric acid solution, which increases with film thickness. Oxygen reduction proceeds by a two-electron pathway, and the kinetics of this catalyzed reaction are analyzed by the use of cyclic and rotating disk voltammetries.

AB - A new polypyrrole-carrying aza crown ether in the 3 position has been synthesized, which shows reversible complexing properties towards Co2+ ions. The stoichiometry of the cobalt aza crown ether complex varies from 1 : 1 to 1 : 2, depending on the size of the crown cavity. These modified electrodes show an interesting electroactivity towards oxygen reduction in sulfuric acid solution, which increases with film thickness. Oxygen reduction proceeds by a two-electron pathway, and the kinetics of this catalyzed reaction are analyzed by the use of cyclic and rotating disk voltammetries.

KW - Aza crown ether

KW - Complexing properties

KW - Polypyrroles

U2 - 10.1016/0022-0728(95)04379-9

DO - 10.1016/0022-0728(95)04379-9

M3 - Article

AN - SCOPUS:0030120462

SN - 1572-6657

VL - 406

SP - 187

EP - 194

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 1-2