Electrochemical oxidation of 6-hydroxyquinoline on a glassy carbon paste electrode: Voltammetric and computational study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F12%3A10126409" target="_blank" >RIV/00216208:11310/12:10126409 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jelechem.2012.04.030" target="_blank" >http://dx.doi.org/10.1016/j.jelechem.2012.04.030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jelechem.2012.04.030" target="_blank" >10.1016/j.jelechem.2012.04.030</a>

Result language

angličtina

Original language name

Electrochemical oxidation of 6-hydroxyquinoline on a glassy carbon paste electrode: Voltammetric and computational study

Original language description

Experimental study of the electro-oxidation behavior of 6-hydroxyquinoline (6HQ) has been performed using cyclic voltammetry (CV) on a glassy carbon paste electrode (GCPE). The theoretical study of the 6HQ electrochemical oxidation mechanism, based on the AM1 semi-empirical quantum chemical computations of the heats of formation and ionization energy of reaction intermediates, taking into account influence of pH and solvation effects, has also been conducted. It was established that a two-electron, irreversible process, controlled by diffusion of electroactive species, is responsible for an oxidation peak of 6HQ that appears in all cyclic voltammograms recorded on a clean electrode, in solutions of pH range 2-12, with a supporting electrolyte of Britton-Robinson buffer/methanol. A single-electron oxidation of 6HQ leads, depending on pH, to the formation of various free radical species that combine to make C5-C5 coupled 6HQ dimers which, after being oxidized once more, give quinonoid-ty

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Electroanalytical Chemistry

ISSN

1572-6657

e-ISSN

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Volume of the periodical

677

Issue of the periodical within the volume

July

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

69-77

UT code for WoS article

000306728700010

EID of the result in the Scopus database

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