Interaction of thiourea (THU) with Pd electrodes (geometrical surface area 1.5 cm', roughness factor& = 3400) has been studied at 20Β°C. The roughness factor was measured by krypton adsorption. The interaction occurs by the following steps: (1) reversible adsorption of THU molecules on the surface of
Interaction of thiourea with silver electrodes
β Scribed by Marek Szklarczyk; Nguyen Nhu Hoa; Piotr Zelenay
- Publisher
- Elsevier
- Year
- 1996
- Tongue
- English
- Weight
- 516 KB
- Volume
- 405
- Category
- Article
- ISSN
- 1572-6657
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π SIMILAR VOLUMES
Thiourea (TU) adsorbed at Ag electrodes both in neutral and acidic solutions has been studied using surface enhanced Raman (SER) spectroscopy and differential capacitance measurements. The coadsorption of TU with anions may be through the NH, group in neutral solutions, and the NH: group in acidic s
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