X-Ray Phase Analysis of Cu and Pb Anodic Oxidation Products

Abstract

Studies on the process of anode oxidation for production of copper and lead oxides have been reported in a number of papers^1,2,3,4. A major drawback of these methods is a lack of possibility of direct monitoring of the changes in the phase composition during the process of formation of the oxide layers. When removed from the electrolyte and subjected to a treatment such as rinsing and drying, the layer of oxidation products may also undergo structural changes. This situation prompted a decision to study the phase composition of the oxidation products of copper and lead directly during the anode electrocrystallization process. For this purpose a TURM-62 X-ray diffractometer was used with a special attachment as described in ref. 5. The use of this attachment makes it possible to obtain X-ray diffraction pattern during electrocrystallization of the oxide layer.