# Studies of Molecular Oxygen Adsorbed on Cu Surfaces

Prabhakaran, K and Sen, P and Rao, CNR (1986) Studies of Molecular Oxygen Adsorbed on Cu Surfaces. In: Surface Science, 177 (2). L971-L977.

 PDF surface.pdf Restricted to Registered users only Download (378Kb) | Request a copy

## Abstract

Molecular oxygen adsorbed on (110) and polycrystalline Cu surfaces has been investigated by UPS, XPS, AES, HREELS and LEED. Molecularly adsorbed $O_2$ on the (110) surface shows the characteristic three-peak HeII spectrum due to $\pi_g$, $\pi_u$ and $\sigma_g$ orbitals, accompanied by an O-O stretching frequency at 660 $cm^{-1}$. On the polycrystalline Cu surface, adsorbed $O_2$ shows the three peak HeII spectra with a considerably smaller separation between the $\pi_u$ and $\sigma_g$ band and two O-O stretching bands at 610 and 880 $cm^{-1}$. $O_2$ adsorbed on the Cu(110) surface gives rise to a (1 × 1) LEED pattern and characteristic K $\pi^*\pi^*$ transition in the Auger spectrum.

Item Type: Journal Article Copyright of this article belongs to Elsevier Science B.V. Division of Chemical Sciences > Solid State & Structural Chemistry Unit 14 Mar 2008 19 Sep 2010 04:43 http://eprints.iisc.ernet.in/id/eprint/13392