中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 20 No. 1 January 2010 |
aluminum substrate electrode
（Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology,
Kunming 650093, China）
Abstract:Alpha-lead dioxide was deposited by anodization of alkaline solution containing HPbO2− anions. Scanning electron microscopy (SEM) results show that the morphology is remarkably affected by the current density, concentration of HPbO2− anions, bath temperature and electroplating time. Compact and well adherent layers are possibly obtained under conditions of current densities ≤3 mA/cm2, electrolyte containing 4 mol/L NaOH and 0.12−0.14 mol/L lead (Ⅱ), bath temperature of 40 ℃, and electroplating time of 2 h. EDS analyses show that the PbO2 deposited in alkaline condition is highly non-stoichiometric at high current density.
Key words: alpha-lead dioxide; morphology; electrodeposition; composition; aluminum substrate
