Thiourea adsorption at the polycrystalline silver electrode in methanolic KF solutions
✍ Scribed by Magdalena Miłkowska
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 483 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0013-4686
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📜 SIMILAR VOLUMES
Differential capacity of polycrystalline silver electrode in aqueous KF solutions containing thiourea (TU) of concentrations from 0.001 to 0.25 mol drnm3 has been measured by the previously described potentiostatic method CM. Brzostowska-Smolska et al., J. electroanal. Chem. 89, 389 (1978)]. The TU
alkaline solutions, when the potential of the silver electrode is more positive than -450 mV vs see, thiourea undergoes decomposition and a sparingly soluble silver sulfide film forms as a product of the accompanying anodic reaction. These processes are controlled by convective diffusion and depend
Using the potentiostatic pulse method, the differential capacity on goid for 0.1 M KF met~no~c soh$tion and for the solutions containing hexanol-1 of several concentrations has been measured. Surface fractional coverage 8 = r/r,, with hexanol-i molecules for potentials near to the potentiat of maxim