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Interaction of acetylacetone with HZSM-5: Visualization of “n.m.r. invisible” aluminum

✍ Scribed by Sharelle M. Alexander; David M. Bibby; Russell F. Howe; Richard H. Meinhold


Book ID
107894549
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
490 KB
Volume
13
Category
Article
ISSN
0144-2449

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✍ V.M. Mastikhin; I.L. Mudrakovsky; S.V. Filimonova 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 378 KB

The Lewis acidity of H-Y and HZSM-5 zeolites has been studied using lSN n.m.r, of adsorbed N20. It follows from lSN n.m.r, data that in H-Y zeolites a variety of Lewis acidic sites having different strengths of acidity is present. The number of the strongest Lewis sites is about 20-30 i~mole/g, i.e.