Infrared spectra of CO adsorbed at low temperatures on Ni |
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| Authors: | Harry J. Levinson R.G. Tobin P.L. Richards |
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| Affiliation: | Department of Physics, University of California at Berkeley, and Materials and Molecular Research Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 U.S.A. |
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| Abstract: | At low temperatures (1.5K–40K), CO has been found to chemisorb into terminal, bridge, and three-fold sites on evaporated Ni films. The chemisorption takes place directly, rather than through a precursor state. At least two distinct terminal sites are occupied at high coverages. After the sample is warmed from 1.5K to 40K the infrared spectra change dramatically, showing substantial surface diffusion even at these low temperatures. |
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