Ultrahigh vacuum chamber for Raman studies of gases adsorbed on metals
- 1 August 1978
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 49 (8) , 1163-1165
- https://doi.org/10.1063/1.1135562
Abstract
An ultrahigh vacuum chamber is described which is being used to study laser Raman spectra associated with gas adsorption on clean metal surfaces. The system enables sample temperatures from -85° to 600°C to be obtained, and besides surface cleaning capabilities associated with high-temperature oxidation or reduction, it incorporates an Ar+ sputter gun for surface cleaning. Initial experiments of CO+H2 adsorption on crystalline Ni surfaces are described and the effects of H2 and O2 exposure shown for the 80 cm−1 band which results from CO+H2 adsorption.Keywords
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