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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/7738

Title: Surface characterisation of anodic films of Pb-Sn alloy electrodes: the effect of Sn on the photoelectrochemical properties
Authors: MUKHOPADHYAY, I
SELVAM, P
SHARON, M
VELUCHAMY, P
MINOURA, H
Keywords: sulfuric-acid
alkaline-solutions
lead corrosion
oxidation
mechanism
Issue Date: 1997
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.
URI: http://dx.doi.org/10.1016/S0254-0584(97)01884-1
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7738
http://hdl.handle.net/10054/7738
ISSN: 0254-0584
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