# Adsorption of carbon monoxide on Ni/Ti and Ni/$TiO_2$ surfaces prepared in situ in the electron spectrometer: A combined UPS-XPS study

Rajumon, MK and Hegde, MS and Rao, CNR (1988) Adsorption of carbon monoxide on Ni/Ti and Ni/$TiO_2$ surfaces prepared in situ in the electron spectrometer: A combined UPS-XPS study. In: Catalysis Letters, 1 (11). pp. 351-359.

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## Abstract

Adsorption of CO on a clean Ti surface is partly associative at 80 K with a 1\pi-4\sigma separation of 4.2 eV, becoming dissociative at 130 K. On Ni- covered Ti surfaces, however, associative adsorption (4\sigma-1\pi, 3.3 eV) occurs at 80 K and partial dissociation, around 200 K. $TiO_2$ is reduced more effectively on annealing, when it is covered with Ni. On the surfaces of Ni deposited on $TiO_2$, there is only dissociative adsorption, unlike on $Ni/Al_20_3$ and $Ni/TiO_2$ (non-annealed) surfaces.

Item Type: Journal Article Copyright of this article belongs to Springer. Division of Chemical Sciences > Solid State & Structural Chemistry Unit 29 Feb 2008 19 Sep 2010 04:42 http://eprints.iisc.ernet.in/id/eprint/13122