Electrolytic coatings (layers) deposited from palladium(II) salts

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Title:Electrolytic coatings (layers) deposited from palladium(II) salts
Creators:
Hlavatý, Jaromír
Volke, Jiří
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 56, 1, pp. 167-177

Abstract

In contrast to a number of investigations concerning preparation of layers and coatings of palladium(II) oxides this communication describes a reproducible electrolytic preparation from activation baths containing Pd(II) ions of coatings with hydrated palladium oxides, in particular on platinum supports. The voltammetric curves of coatings formed in such a way are reproducible over the whole pH range and exhibit an irreversible cathodic-anodic couple of peaks. For the voltammetric curve on an active layer deposited on a platinum support from a solution of Pd(NO<sub>3</sub>)<sub>2</sub> at pH 7.03 <i>E</i><sup>k</sup><sub>p</sub> is + 0.02 V and <i>E</i><sup>a</sup><sub>p</sub> +0.33 V (vs SCE). The observed character of the pH dependences for the peak potentials and current densities with a similar, mostly linear, behaviour has been also observed with layers deposited on glassy carbon or nickel. The deposited layers containing hydrated palladium oxides exhibit oxidative activity as follows from voltammograms in slightly acidic to neutral and strongly alkaline region. These curves point to the ability to oxidize not only ethanol but also toluene used as a with difficulty oxidizable model substrate.

Title:Electrolytic coatings (layers) deposited from palladium(II) salts
Creators:
Hlavatý, Jaromír
Volke, Jiří
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:56
Number:1
Page Range:pp. 167-177
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19910167UNSPECIFIED
ID Code:4935
Item Type:Article
Deposited On:22 Feb 2010 11:26
Last Modified:22 Feb 2010 10:27

Citation

Hlavatý, Jaromír; Volke, Jiří (1991) Electrolytic coatings (layers) deposited from palladium(II) salts. Collection of Czechoslovak Chemical Communications, 56 (1). pp. 167-177. ISSN 0010-0765

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