The oxidation of lead in 5 M H2SO4 was studied by cyclic voltammetry. When a potential scan is applied from --1.0 V to 2.6 V vs. R.H.E. the PbSOJPbO2 oxidation peak can be observed in the anodic voltammogram provided the scan rate is 0.16 mV/s or lower. When the potential scan is restricted to the p
The oxidation of porous lead electrodes in sulphuric acid solutions
โ Scribed by N.A. Hampson; J.B. Lakeman
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 767 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0378-7753
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โฆ Synopsis
The electrochemical oxidation of porous lead electrodes is compared and contrasted with that of solid lead. Significant differences between the behaviours of the two electrode types are observed and interpreted in terms of the major component of the oxidation of the porous electrode arising from the "inner" porous electrode structure. This "inner" contribution is not affected by the geometry of the electrode hydrodynamic layer.
๐ SIMILAR VOLUMES
Cyclic voltammetry has been used to study the electrochemical redox behaviour of the Pb/PbO,&PbSO, system on the lead electrode in aqueous H,SO, solutions. The ancdic and the cathodic polarization behaviour has been investigated under the'various conditions by changing the potential region, sweeping
There are wide discrepancies in the reported current density values (ti p and i0,~) obtained from potentiodynamic studies on lead in sulphuric acid solutions . Furthermore, it is well known that preparative procedures exert a marked influence on the data obtained for planar electrodes. The present i
When a fully charged lead negative electrode stood for one month in 1.0 M H,SO, solution at a temperature of 298.15K, it was passivated through so-called "sulfation" as indicated by a decrease in the redox peak currents on cyclic voltammograms. As a method of reactivating the passivated lead negati