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The electrodeposition of highly reflective lead dioxide coatings

Low, C.T.J., Pletcher, D. and Walsh, F.C. (2009) The electrodeposition of highly reflective lead dioxide coatings Electrochemistry Communications, 11, (6), pp. 1301-1304. (doi:10.1016/j.elecom.2009.04.032).

Record type: Article


In the presence of a suitable surfactant, such as hexadecyltrimethylammonium chloride or bromide, highly reflective and hard lead dioxide coatings with a black appearance can be electrodeposited from methanesulfonic acid media at room temperature (295 K). The reflective PbO2 coatings are compact, adherent to the (vitreous carbon or carbon-polymer) substrate and can be formed at current densities of 10 to 100 mA cm?2 at a thickness up to several hundred microns. The coatings were characterised by measurement of surface optical reflectance, surface roughness, surface microstructure, phase composition and crystallite size. The reflective PbO2 films were found to mainly consist of the alpha (orthorhombic) phase with feather-like and orientated microstructures. The crystallite size and surface roughness were in the order of tens of nanometres and their optical reflectance was several orders of magnitude higher than matte coatings produced in the absence of additives.

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Published date: June 2009
Keywords: electrodeposition, reflective, lead dioxide, methanesulfonic acid
Organisations: Electrochemistry


Local EPrints ID: 344848
ISSN: 1388-2481
PURE UUID: 139e7284-928d-4653-ba21-b3b28beaf7de

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Date deposited: 06 Nov 2012 11:26
Last modified: 18 Jul 2017 05:13

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Author: C.T.J. Low
Author: D. Pletcher
Author: F.C. Walsh

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