Abstract
Lead dioxide-titanium electrodes have been tested as oxygen evolving anodes in 1 mol dm−3 H2SO4, at high current densities. Three modes of failure, shedding, thinning and deactivation have been identified. The first two are the result of stresses produced during electrodeposition, compounded by the thermal effects of polarization. Some improvements in these aspects of performance have been made by manipulation of the plating conditions. Deactivation has been modelled by considering the diffusion of special sites from the bulk material. There is continuous redeposition of PbO2 from the solution.
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References
D. Gilroy and R. Stevens,J. Appl. Electrochem. 10 (1980) 511.
A. P. King, Electricity Council Research Centre, Report M1134 (1978).
D. J. Pickett and K. L. Ong,Electrochim. Acta 19 (1974) 875.
A. T. Kuhn, ‘The Electrochemistry of Lead’, Academic Press, London (1979).
N. Pangarov and R. Pangarova,J. Electroanal. Chem. 91 (1978) 173.
K. S. A. Gnanasekaran, K. C. Narasimham and H. V. K. Udupa,Electrochim. Acta 15 (1970) 1615.
S. Vasundara, K. C. Narasimham and H. V. K. Udupa,ibid. 16 (1971) 1301.
K. C. Narasimham, S. Vasundara and H. V. K. Udupa,Can. J. Chem. 53 (1975) 3327.
C. J. Bushrod and N. A. Hampson,Br. Corros. J. 6 (1971) 129.
A. T. Kuhn and R. B. Lartey,Corrosion — NACE 33 (1977) 73.
R. J. Roark, ‘Formulas for Stress and Strain’, 4th edn, McGraw-Hill, New York (1965).
S. Timoshenko, ‘Strength of Materials, Part II’, 3rd edn, Van Nostrand, Princeton (1956).
L. J. J. Janssen and J. G. Hoogland,Electrochim. Acta 15 (1970) 1013.
H. S. Carslaw and J. C. Jaeger, ‘Conduction of Heat in Solids’, 2nd edn, Oxford (1959).
J. G. Sunderland,J. Electroanal. Chem. 71 (1976) 341.
B. E. Conway, M. A. Sattar and D. Gilroy,Electrochim. Acta 14 (1969) 677.
A. K. Vijh, ‘Electrochemistry of Metals and Semiconductors’, Marcel Dekker Inc., New York (1973).
K. D. Allard and K. E. Heusler,J. Electroanal. Chem. 77 (1977) 35.
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Gilroy, D. The breakdown of PbO2-Ti anodes. J Appl Electrochem 12, 171–183 (1982). https://doi.org/10.1007/BF00616899
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DOI: https://doi.org/10.1007/BF00616899