Vetter and Berndt

One feature that seems to have been largely ignored in earlier work is the fact that the species formed in the initial stages of the platinum oxidation reaction may be charged, rather than neutral, in character. Evidence for this is found in the work of Vetter and Berndt,107 whose charging curve data are reproduced here in Fig. 4. 

Vetter and Berndt [19] maintained a constant potential in the region between 0.8 V and 2.0 V on a smooth Pd wire in 0.5 MH2SO4 at 25 ""C for 48 hr. Spectroscopical analysis of the solution at the end of the experiment showed that palladium corrodes. The rate of palladium dissolution computed from the solution analysis according to reaction 8... 

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