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1H MAS studies of acid sites in ZSM-5 ty

1H MAS studies of acid sites in ZSM-5 type zeolites

✍ M. Hunger; D. Freude; H. Pfeifer 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 335 KB

Proton magic-angle-spinning nuclear magnetic resonance <lH MAS NMR) spectroscopy may yield quantitative information about Brbnsted acid sites, the extent of structural defects and non-framework species in the intra-zeolitic channels. We show that the extremely high concentration of silanol groups in

Properties of iron-containing ZSM-5 zeol

Properties of iron-containing ZSM-5 zeolite: A theoretical study based on quantum chemical calculations

✍ R. Vetrivel; S. Pal; S. Krishnan 📂 Article 📅 1991 🏛 Elsevier Science ⚖ 754 KB

On the nature of superactive centers in

On the nature of superactive centers in H-ZSM-5 zeolites: Quantum chemical calculations

✍ M.J. Filatov; A.G. Pelmenschikov; G.M. Zhidomirov 📂 Article 📅 1993 🏛 Elsevier Science ⚖ 575 KB

Hydroxyl groups and acid sites in NaZSM

Hydroxyl groups and acid sites in NaZSM-5 zeolites studied by i.r. spectroscopy

✍ J. Datka; E. Tużnik 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 275 KB

The effect of sodium poisoning on acid s

The effect of sodium poisoning on acid sites in ZSM-22 zeolites

✍ R.B. Borade; A. Adnot; S. Kaliaguine 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 492 KB

Hierarchical ZSM-5 Zeolites in Shape-Sel

Hierarchical ZSM-5 Zeolites in Shape-Selective Xylene Isomerization: Role of Mesoporosity and Acid Site Speciation

✍ Christian Fernandez; Irina Stan; Jean-Pierre Gilson; Karine Thomas; Aurélie Vice 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 825 KB

Quantum chemical studies of acid sites in zeolite ZSM-5