Chemisorption sites of CO on small gold clusters and transitions from chemisorption to physisorption
- 18 January 2005
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 122 (5), 051101
- https://doi.org/10.1063/1.1850091
Abstract
Gold clusters adsorbed with CO, Aum(CO)n− (m=2–5; n=0–7), were studied by photoelectron spectroscopy (PES). The first few CO adsorptions were observed to induce significant redshifts to the PES spectra relative to pure gold clusters. For each Au cluster, a critical CO number (nc) was observed, beyond which the PES spectra of Aum(CO)n− change very little with increasing n. nc was shown to correspond exactly to the available low coordination apex sites in each Au cluster. CO first chemisorbs to these sites and additional CO then only physisorbs to the chemisorption-sautrated Aum(CO)n− complexes.This publication has 35 references indexed in Scilit:
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