Infrared spectroscopic study of the acid properties of dealuminated BEA zeolites
✍ Scribed by J.P Marques; I Gener; P Ayrault; J.C Bordado; J.M Lopes; F Ramôa Ribeiro; M Guisnet
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 598 KB
- Volume
- 60
- Category
- Article
- ISSN
- 1387-1811
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The dealumination of zeolite L was attempted by steaming, treatment with ammonium hexa¯uorosilicate, and with silicon tetrachloride. The zeolite framework can be dealuminated most eectively through ion exchange into the sodium form followed by treatment with silicon tetrachloride. The crystalline st
Deuteration of Bronsted acidic sites in zeolites gives observable infrared in-plane O-D bending modes. For zeolite Y and ZK-5, a maximum near 870 cm-' with a shoulder near 890 cm-' is observed. These signals arc related to, respectively, the highfrequency and the low-frequency stretching modes. Mord