Abstract
This paper concerns the preparation of cobalt oxides through anodic deposition from Co(NO3)2 aqueous solutions on different substrates. The electroformed oxide films exhibit good chemical stability and lower oxygen overvoltages, irrespective of the substrate material. Electrocatalytic properties are investigated through polarisation curves and impedance measurements, while the active surface area is estimated by cyclic voltammetry. Experimental data are analysed in terms of a possible reaction mechanism.
Similar content being viewed by others
References
M. Hamdani, J. F. Koenig and P. Chartier, J. Appl. Electrochem. 18 (1988) 561.
Y.-Sh. Lee. Ch.-Ch. Hu and T.-Ch. Wen, J. Electrochem. Soc. 143 (1994) 1218.
M. R. Gennero de Chialvo and A. C. Chialvo, Electrochimica Acta 38 (1993) 2247.
S. Trasatti, ibid. 29 (1984) 1503.
S. G. Real, A. C. Elias, J. R. Vilche, C. A. Gervasi and A. Di Sarli, ibid. 38 (1993) 2029.
R. N. Singh, J.-F. Koenig, G. Poillerat and P. Chartier, J. Electrochem. Soc. 137 (1990) 1408.
F. A. Cotton and G. Wilkinson, in ‘Advanced Inorganic Chemistry’, (edited by F. A. Cotton and G. Wilkinson) J. Wiley & Sons, New York (1966), p. 897.
L. C. Schumacher, I. B. Holzhueter, I. R. Hill and M. J. Dignam, Electrochim. Acta 35 (1990) 975.
P. Nkeng, G. Poillerat, J. F. Koenig, P. Chartier, B. Lefez, J. Lopiteaux and M. Lenglet, J. Electrochem. Soc. 142 (1995) 1777.
S. Maximovitch, Electrochim. Acta 41 (1996) 2761.
E. B. Castro and J. R. Vilche, ibid. 38 (1993) 1567.
C. Y. Cho, L. F. Lin and D. D. Macdonald, J. Electrochem. Soc. 129 (1982) 1874.
E. B. Castro, Electrochim. Acta 39 (1994) 2117.
R.-N. Singh, M. Hamdani, J.-F. Koenig, G. Poillerat, J. L. Gautier and P. Chartier, J. Appl. Electrochem. 20 (1990) 442.
T. Ch. Wen and Ch.-Ch. Hu, J. Electrochem. Soc. 139 (1992) 2158.
S. Jin, S. Ye, Electrochim. Acta 41 (1996) 827.
B. E. Conway and T. C. Liu, Ber. Bunsenges. Phys. Chem. 91 (1987) 461.
R. Boggio, A. Carugati and S. Trasatti. J. Appl. Electrochem. 17 (1987) 828.
L. D. Burke and M. M. McCarthy, J. Electrochem. Soc. 135 (1988) 1175.
G. Singh, M. M. Miles and S. Srinivasan, in ‘Electrocatalysis on Nonmetallic Surfaces’ (NBS Special Publication N°455) (edited by A. D. Franklin), US Government Printing Office, Washington, DC (1976), p. 289.
A. C. C. Tseung and S. M. Jasem, Electrochim. Acta 22 (1976) 501.
Y. W. D. Chen and R. N. Noufi, J. Electrochem. Soc. 131 (1984) 1447.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Castro, E.B., Gervasi, C.A. & Vilche, J.R. Oxygen evolution on electrodeposited cobalt oxides. Journal of Applied Electrochemistry 28, 835–841 (1998). https://doi.org/10.1023/A:1003488409147
Issue Date:
DOI: https://doi.org/10.1023/A:1003488409147