Picosecond study of the population lifetime of CO(v=1) chemisorbed on SiO2-supported rhodium particles
- 15 October 1988
- journal article
- letter
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 89 (8), 5342-5343
- https://doi.org/10.1063/1.455626
Abstract
Infrared pump–probe characterization of the excited state lifetimes reveals that CO bound to isolated metal sites (T1=140±20 ps) persists longer than the signal observed for CO bound to ≈35 Å diameter metal particles (≤18 ps), suggesting paticipation of electron–hole excitations in the larger metal particles.Keywords
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