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Weak molecular chemisorption of  N2/Pt(111)

L W Bruch1, R P Nabar2 and M Mavrikakis2

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The ordering in a higher-order-commensurate monolayer solid of Pt(111)- (3 × 3)-4  N2, which has coexisting physisorbed and weakly chemisorbed N2 species, is analyzed with model calculations. Density functional theory calculations are also used to evaluate properties of chemisorbed N2 in a (2 × 2) unit cell on Pt(111). The relation of these results to the orientational ordering of N2 on other metal surfaces is discussed.


PACS

68.43.Mn Adsorption kinetics

68.47.De Metallic surfaces

Subjects

Surfaces, interfaces and thin films

Dates

Issue 26 (1 July 2009)

Received 24 October 2008, in final form 26 November 2008

Published 11 June 2009



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