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|Title:||EPR simulation to confirm the formation of Ag6O5 complex on the surface of 10% Ag/CeO2 catalyst after the propylene oxidation reaction||Authors:||Hany, Sara
Abi Aad, Edmond
|Affiliations:||Department of Chemistry||Keywords:||Ag2+
|Issue Date:||2018||Part of:||Journal of chemical physics letters||Volume:||703||Start page:||94||End page:||96||Abstract:||
Ag2+(b) species were detected by electron paramagnetic resonance (EPR) on silver loaded over ceria by impregnation in a previous work. Contrasting the EPR simulation with the experimental measurements evidenced that, upon propene oxidation, the Ag2+(b) species transform into two clusters each containing 2 Ag2+ and 1 Ag+ species. This cluster is composed of two parallel electron spins (dimer) and three nuclear spins (trimer). Such a result led us to suggest that initially, Ag2+(b) species clusters were formed by three parallel electron spins. The ferromagnetic character of Ag2+(b) species may explain their catalytic performance towards total oxidation of propylene.
|URI:||https://scholarhub.balamand.edu.lb/handle/uob/1962||DOI:||10.1016/j.cplett.2018.05.019||Ezproxy URL:||Link to full text||Type:||Journal Article|
|Appears in Collections:||Department of Chemistry|
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