Variable-Temperature Electron Paramagnetic Resonance Studies of Copper-Exchanged Zeolites
β Scribed by Patrick J. Carl; Sarah C. Larsen
- Book ID
- 112255562
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 175 KB
- Volume
- 182
- Category
- Article
- ISSN
- 0021-9517
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π SIMILAR VOLUMES
Cu(I)-NO complexes, one of the essential intermediates in the NO decomposition reaction, were formed over copper exchanged and autoreduced Cu-ZSM-5, Cu-MCM-58, Cu-ZSM-12, and Cu-L zeolites, and studied by electron spin resonance spectroscopy at X-, Q-, and W-band frequencies. The spin Hamiltonian pa
## Addition of trimethylphosphine to a rapidly dehydrated copper Y zeolite resulted in the immediate reduction of the copper to the univalent oxidation state. After a brief evacuation, addition of oxygen caused the instantaneous oxidation of the &(I) ions and the complexing ligands. It is proposed t