Measuring acidity by temperature-programmed desorption
โ Scribed by R.L. Mieville; B.L. Meyers
- Book ID
- 113176799
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 173 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0021-9517
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The acidity of H-form zeolites which include mordenite, ZSM-5, Y-faujasite, and those modified by cation exchange or deahrmination was measured by temperature-programmed desorption (TPD) of NHp. Ammonia was adsorbed at 373 K to eliminate the contribution of very weak acid sites and improve the spect
## Abstaact Mathematical models used to achieve the deconvolution of temperature-programmed desorption (TPD ) spectra from heterogeneous surfaces generally rely on assumptions about the pre-exponential factor or on the variation of the activation energy of desorption with coverage. In contrast, in