Rao, CNR and Rajumon, MK and Prabhakaran, K and Hegde, MS and Kamath, PV (1986) Precursor Species of Carbon Monoxide Before its Dissociation on Aluminium-Promoted Ni and Cu Surfaces. In: Chemical Physics Letters, 129 (2). pp. 130-134.
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Carbon monoxide adsorbed on Al-promoted Ni and Cu surfaces undergoes facile dissociation at 300 K or below. CO adsorbed on an Al-promoted Ni surface shows a larger separation (3.5 eV) between the 5\sigma and 4\sigma levels compared to that on a clean Ni surface (3.0 eV), besides exhibiting a low C-O stretching frequency. CO adsorbed on an Al-promoted Cu surface shows a similar large 5\sigma - 4\sigma separation; this is accompanied by the disappearance of the satellites in the valence band and O(ls) regions. These features of CO adsorbed on Al-promoted Ni and Cu surfaces characterize the precursor to dissociation. Molecular orbital calculations suggest that CO bonds parallel to the Al-promoted Cu surface.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier.|
|Department/Centre:||Division of Chemical Sciences > Solid State & Structural Chemistry Unit|
|Date Deposited:||04 Jul 2008|
|Last Modified:||19 Sep 2010 04:46|
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