Non equivalency of oxygen nuclei in 17O−2 adsorbed on oxides |
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| Authors: | M. Che A.J. Tench |
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| Affiliation: | Chemistry Division, A.E.R.E. Harwell UK |
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| Abstract: | Oxygen enriched with 17O has been used to investigate the nature of oxygen species adsorbed on oxides. The variations in the hyperfine constants of O?2, small (<3%) for MgO and ZnO, are due to different adsorption sites. They become large (>15%) for supported molybdenum due to the different spin densities on the two nuclei showing that O?2 probably adsorbed at an angle to the surface. |
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