Electrochemical study of Co(II)/Co(III) on different electrode materials
for energy storage in redox flow cells
Electrochemical study of Co(II)/Co(III) on different electrode materials
for energy storage in redox flow cells
The development of redox flow cells has been carried out through
the use of several redox couples which oxidize and reduce to store
electrical energy. Some problems encountered in redox cells
include: low solubility of redox couples, slow kinetics, low
stability of electrode materials and high toxicity of electroactive
species. In this paper, Co(III)/Co(II) has been investigated as a
possible electroactive material because of its high oxidizing
power and the relatively low toxicity of Co(III). The
electrochemical study of Co(III)/Co(II) was carried out on
different electrode materials such as glassy carbon, Au, Pt, Pb and
stainless steel. Results show that the high oxidizing power of
Co(III) does not enable to observe its reduction reaction in the
aforementioned electrode materials possibly due to electrode
surface corrosion and/or water oxidation. However, the
electrolysis of Co(III) with a Pb electrode shows that the system is
reversible and forms PbO2 on the electrode surface
redox flow cells, energy storage
237-247
López-Estrada, Salvador A
008b7a00-f685-489b-9bbd-7e94dd51b4ae
Alatorre-Ordaz, Alejandro
d8a46de7-b527-4e8e-bd6f-418d544183de
Gutiérrez-Granados, Silvia
68d17d87-c675-4fac-9354-9230424a34b6
Ponce de Leon, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Walsh, Franck C.
309528e7-062e-439b-af40-9309bc91efb2
2009
López-Estrada, Salvador A
008b7a00-f685-489b-9bbd-7e94dd51b4ae
Alatorre-Ordaz, Alejandro
d8a46de7-b527-4e8e-bd6f-418d544183de
Gutiérrez-Granados, Silvia
68d17d87-c675-4fac-9354-9230424a34b6
Ponce de Leon, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Walsh, Franck C.
309528e7-062e-439b-af40-9309bc91efb2
López-Estrada, Salvador A, Alatorre-Ordaz, Alejandro, Gutiérrez-Granados, Silvia, Ponce de Leon, Carlos and Walsh, Franck C.
(2009)
Electrochemical study of Co(II)/Co(III) on different electrode materials
for energy storage in redox flow cells.
ECS Transactions, 20 (1), .
(doi:10.1149/1.3268391).
Abstract
The development of redox flow cells has been carried out through
the use of several redox couples which oxidize and reduce to store
electrical energy. Some problems encountered in redox cells
include: low solubility of redox couples, slow kinetics, low
stability of electrode materials and high toxicity of electroactive
species. In this paper, Co(III)/Co(II) has been investigated as a
possible electroactive material because of its high oxidizing
power and the relatively low toxicity of Co(III). The
electrochemical study of Co(III)/Co(II) was carried out on
different electrode materials such as glassy carbon, Au, Pt, Pb and
stainless steel. Results show that the high oxidizing power of
Co(III) does not enable to observe its reduction reaction in the
aforementioned electrode materials possibly due to electrode
surface corrosion and/or water oxidation. However, the
electrolysis of Co(III) with a Pb electrode shows that the system is
reversible and forms PbO2 on the electrode surface
Text
ECSTF8_20_1_237_1.pdf
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More information
Published date: 2009
Additional Information:
24th Meeting of The Mexican Electrochemical Society and 2nd Meeting of the Mexican Section of the Electrochemical Society, May 31 - June 5, 2009 , Puerto Vallarta, Mexico
MES 24: Electrochemical Applications to Biology, Nanotechnology, and Environmental Engineering and Materials Editor(s): M. Palomar-Pardavé, I. Gonzales, M. Romero-Romo, N. Casillas, M. Soto
Keywords:
redox flow cells, energy storage
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 69889
URI: http://eprints.soton.ac.uk/id/eprint/69889
ISSN: 1938-5862
PURE UUID: 0a803734-2af1-453b-bab0-361c843e0217
Catalogue record
Date deposited: 09 Dec 2009
Last modified: 14 Mar 2024 02:50
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Contributors
Author:
Salvador A López-Estrada
Author:
Alejandro Alatorre-Ordaz
Author:
Silvia Gutiérrez-Granados
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