Dependence of the strength of interaction of carbon monoxide with transition metal clusters on the cluster size

Santra, AK and Ghosh, S and Rao, CNR (1994) Dependence of the strength of interaction of carbon monoxide with transition metal clusters on the cluster size. In: Langmuir, 10 (11). 3937 -3939 .

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Abstract

The interaction of CO with Cu, Pd, and Ni at different coverages of the metals on solid substrates has been investigated by He II and core-level spectroscopies, after the nature of variation of the metal core-level binding energies with the coverage or the cluster size is established. The separation between the (1 pi + 5 sigma) and 4 sigma levels of CO increases with a decrease in the size of the metal clusters, accompanied by an increase in the desorption temperature. In the case of Cu, the intramolecular shakeup satellite of CO disappears on small clusters. More importantly, CO dissociates on small Ni clusters, clearly confirming that metal-CO interaction strength increases with a decrease in the cluster size.

Item Type:	Editorials/Short Communications
Publication:	Langmuir
Publisher:	American Chemical Society
Additional Information:	Copyright of this article belongs to American Chemical Society.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	02 Jun 2011 07:29
Last Modified:	02 Jun 2011 07:29
URI:	http://eprints.iisc.ac.in/id/eprint/36397

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