Pregled bibliografske jedinice broj: 865647
Composition dependent selectivity in the coadsorption of H2O and CO on pure and binary silver–gold clusters
Composition dependent selectivity in the coadsorption of H2O and CO on pure and binary silver–gold clusters // Chemical physics letters, 565 (2013), 74-79 doi:10.1016/j.cplett.2013.02.013 (međunarodna recenzija, članak, znanstveni)
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Naslov
Composition dependent selectivity in the coadsorption of H2O and CO on pure and binary silver–gold clusters
Autori
Fleischer, Irene ; Popolan, Denisia M. ; Krstić, Marjan ; Bonačić-Koutecký, Vlasta ; Bernhardt, Thorsten M.
Izvornik
Chemical physics letters (0009-2614) 565
(2013);
74-79
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
experiment, DFT, reactivity, CO, H2O, mixed silver and gold three-atomic cation clusters
Sažetak
Small cationic gold clusters exhibit a strong affinity toward carbon monoxide. This prevents the coadsorption of water which would be the first step of a catalytic water gas shift chemistry on these clusters. In a gas phase ion trap experiment with mass selected AgnAum+ it was however possible to demonstrate that the replacement of gold by silver atoms in triatomic cluster ions liberates sites for H2O adsorption. The resulting observed coadsorption effect occurs at a cross-over in the molecular binding energies of carbon monoxide and water to these clusters determined by reaction kinetics measurements and first principles calculations.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
