Activation Conditions Play a Key Role in the Activity of Zeolite CaY: NMR and Product Studies of Brønsted Acidity
✍ Scribed by Kao, Hsien-Ming; Grey, Clare P.; Pitchumani, Kasi; Lakshminarasimhan, P. H.; Ramamurthy, V.
- Book ID
- 121437591
- Publisher
- American Chemical Society
- Year
- 1998
- Tongue
- English
- Weight
- 325 KB
- Volume
- 102
- Category
- Article
- ISSN
- 1089-5639
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📜 SIMILAR VOLUMES
A zinc-modi®ed ZSM-5 catalyst was prepared by a solid-state reaction between zinc dust and H-ZSM-5. The resulting catalyst is as active for the aromatization of ethane as zinc-modi®ed ZSM-5 prepared by impregnation.
The Brønsted acidity of H-mordenite (H-MOR) and H-b with similar Si/Al ratios has been characterized by conventional multinuclear solid-state NMR. 1 H/ 27 Al TRAPDOR NMR showed the presence of at least two different types of Brønsted acid sites in H-b. On the other hand, only a single 1 H resonance