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.
Original language | English (US) |
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Pages (from-to) | 94-96 |
Number of pages | 3 |
Journal | Chemical Physics Letters |
Volume | 703 |
DOIs | |
State | Published - Jul 2018 |
Keywords
- Ag
- Dimer
- EPR
- Propylene
- Simulation
- Trimer
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry