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Issue 20, 2005
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Mesoporous palladium—the surface electrochemistry of palladium in aqueous sodium hydroxide and the cathodic reduction of nitrite

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Abstract

The voltammetry of nanostructured palladium layers electrodeposited from a hexagonal liquid crystal phase onto platinum microdiscs show well defined peaks for the adsorption/desorption of hydrogen and surface oxidation/reduction in 2 M NaOH. These peaks are more clearly resolved than at smooth palladium and reveal the complications associated with hydrogen adsorption/desorption on palladium in aqueous alkaline solutions. The reduction of nitrite at the nanostructured palladium is also reported and it is shown that it occurs via a mechanism involving a chemical reaction between adsorbed hydrogen and adsorbed nitrite ion.

Graphical abstract: Mesoporous palladium—the surface electrochemistry of palladium in aqueous sodium hydroxide and the cathodic reduction of nitrite

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Article information


Submitted
21 Jun 2005
Accepted
15 Aug 2005
First published
02 Sep 2005

Phys. Chem. Chem. Phys., 2005,7, 3545-3551
Article type
Paper

Mesoporous palladium—the surface electrochemistry of palladium in aqueous sodium hydroxide and the cathodic reduction of nitrite

G. Denuault, C. Milhano and D. Pletcher, Phys. Chem. Chem. Phys., 2005, 7, 3545
DOI: 10.1039/B508835F

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