Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 16, Issue 29, Pages S2981-S2994Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/16/29/012
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In this paper we will present recent results obtained for hydrogen adsorbed on metal oxide surfaces using helium-atom scattering (HAS). The hydrogen adlayers were prepared by exposing clean and well defined metal oxide surfaces to either molecular or atomic hydrogen. The HAS measurements were complemented by LEED and x-ray photoelectron spectroscopy. The results reveal the formation of ordered H(1 x 1) overlayers on rutile TiO2(110), the polar Zn-ZnO surface and ZnO(10 (1) over bar0). On Al2O3(11 (2) over bar0) exposure to atomic hydrogen did not lead to the formation of an ordered hydrogen adlayer, whereas on the polar O-ZnO surface the hydrogen lifted the (1 x 3) reconstruction seen for the clean surface.
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