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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2019, Volume 70, Issue 1, 185-189

https://doi.org/10.37358/RC.19.1.6878

Gabriela Elena Badea, Lotfi Aleya, Petronel Mustatea, Delia Mirela Tit, Laura Endres, Simona Bungau, Gabriela Cioca

Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism

Abstract:

The electrochemical chlorate reduction at the Pt electrode in 0.5 M H2SO4 deaerated solutions has been studied using potentiostatic steady-state voltammetry. The kinetics parameters (Tafel slope, charge transfer coefficient, current density, and reaction order) were evaluated in function of chlorate concentration (1x10-4 - 0.2 M KClO3). The process of chlorate reduction is a complex one that implies two charge transfer controlled steps with formation of free radicals and an extent potential region controlled by the concentration polarization. The current density dependence of chlorate concentration tends to an exponential growth at concentration ³ 0.1 M KClO3 and becomes exponential in the conditions of the catalyst system presence. In the second charge transfer, a surface reaction between free radical ·Cl-2 and platinum electrode with formation of complex anions PtCL42- and PtCL62- is responsible for the rapid increase of the reaction rate.
Keywords:
electrochemical reduction; platinum electrode; acid solution

Issue: 2019, Volume 70, Issue 1
Pages: 185-189
Publication date: 15/02/2019
https://doi.org/10.37358/RC.19.1.6878
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
BADEA, G.E., ALEYA, L., MUSTATEA, P., TIT, D.M., ENDRES, L., BUNGAU, S., CIOCA, G., Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism, Rev. Chim., 70(1), 2019, 185-189.

Vancouver
Badea GE, Aleya L, Mustatea P, Tit DM, Endres L, Bungau S, Cioca G. Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism. Rev. Chim.[internet]. 2019 Jan;70(1):185-189. Available from: https://doi.org/10.37358/RC.19.1.6878


APA 6th edition
Badea, G.E., Aleya, L., Mustatea, P., Tit, D.M., Endres, L., Bungau, S. & Cioca, G. (2019). Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism. Revista de Chimie, 70(1), 185-189. https://doi.org/10.37358/RC.19.1.6878


Harvard
Badea, G.E., Aleya, L., Mustatea, P., Tit, D.M., Endres, L., Bungau, S., Cioca, G. (2019). 'Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism', Revista de Chimie, 70(1), pp. 185-189. https://doi.org/10.37358/RC.19.1.6878


IEEE
G.E. Badea, L. Aleya, P. Mustatea, D.M. Tit, L. Endres, S. Bungau, G. Cioca, "Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism". Revista de Chimie, vol. 70, no. 1, pp. 185-189, 2019. [online]. https://doi.org/10.37358/RC.19.1.6878


Text
Gabriela Elena Badea, Lotfi Aleya, Petronel Mustatea, Delia Mirela Tit, Laura Endres, Simona Bungau, Gabriela Cioca,
Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism,
Revista de Chimie,
Volume 70, Issue 1,
2019,
Pages 185-189,
ISSN 2668-8212,
https://doi.org/10.37358/RC.19.1.6878.
(https://revistadechimie.ro/Articles.asp?ID=6878)
Keywords: electrochemical reduction; platinum electrode; acid solution


RIS
TY - JOUR
T1 - Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism
A1 - Badea, Gabriela Elena
A2 - Aleya, Lotfi
A3 - Mustatea, Petronel
A4 - Tit, Delia Mirela
A5 - Endres, Laura
A6 - Bungau, Simona
A7 - Cioca, Gabriela
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2019
VL - 70
IS - 1
SP - 185
EP - 189
UR - https://doi.org/10.37358/RC.19.1.6878
KW - electrochemical reduction
KW - platinum electrode
KW - acid solution
ER -


BibTex
@article{RevCh2019P185,
author = {Badea Gabriela Elena and Aleya Lotfi and Mustatea Petronel and Tit Delia Mirela and Endres Laura and Bungau Simona and Cioca Gabriela},
title = {Chlorate Electrochemical Removal from Aqueous Media Based on a Possible Autocatalytic Mechanism},
journal = {Revista de Chimie},
volume = {70},
number = {1},
pages = {185-189},
year = {2019},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.19.1.6878},
url = {https://revistadechimie.ro/Articles.asp?ID=6878}
}
 
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