Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 60, Issue -, Pages 144-147Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2015.08.026
Keywords
Oxygen evolution; Porosity; Electrodeposition; Methanesulfonic acid
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The oxygen bubble-templated deposition of porous PbO2 was realized by anodizing Pb(II) solutions (in nitrate-acetate, sulfamate or methanesulfonate media) at large current density. This process is the anodic analogue of the more common hydrogen bubble-templated electrodeposition of porous metals. The porous PbO2 layers consisted of a mixture of alpha- and beta-phases, in contrast to compact layers deposited at low current density (pure alpha-PbO2). The void volume fraction and surface roughness factor of porous PbO2 were estimated. (C) 2015 Elsevier B.V. All rights reserved.
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