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|Title:||Surface characterisation of anodic films of Pb-Sn alloy electrodes: the effect of Sn on the photoelectrochemical properties|
|Publisher:||ELSEVIER SCIENCE SA LAUSANNE|
|Citation:||MATERIALS CHEMISTRY AND PHYSICS, 49(2), 169-173|
|Abstract:||Oxide thin films of Pb-Sn alloy electrodes were synthesised by potentiodynamic anodisation in hot alkaline solution of sodium sulfate. Films were characterised by various analytical techniques: XRD, SEM, Raman spectroscopy and XPS. The XRD and Raman investigations reveal that the increase in concentration of Sn in the alloy suppresses the formation of the photoactive phase alpha-PbO but it increases the formation of the conducting phase, alpha-PbO2. XPS results indicate the presence of both divalent and tetravalent Pb as well as tetravalent Sn on these films. It also gives evidence for the decrease in alpha-PbO content upon anodisation of the alloy Pb-Sn electrodes.|
|Appears in Collections:||Article|
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