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- Title
Structural Features of Grafted Phosphates in Mesopores of Si-MCM-41 and Ti,Si-MCM-41 Molecular Sieves.
- Authors
Kovalenko, A. S.; Koval'chuk, T. V.; Zaitsev, V. N.; Il'in, V. G.
- Abstract
We have used 31P NMR (MAS) and IR spectroscopy and also chemical analysis to show that when Si- and Ti,Si-MCM-41 mesoporous molecular sieves are treated with phosphorus oxychloride, surface-anchored silicophosphate and titanophosphate compounds are formed of the type ≡(Si—O)x—{PO(OH)3-x} and ≡(Ti—O)x—{PO(OH)3-x} (x = 1, 2), and also compounds with the structure of titanium hydrophosphate and pyrophosphate.
- Subjects
SIEVES; IMPLEMENTS, utensils, etc.; DRYING agents; CHEMICAL engineering; SPECTRUM analysis; ANALYTICAL chemistry
- Publication
Theoretical & Experimental Chemistry, 2003, Vol 39, Issue 3, p195
- ISSN
0040-5760
- Publication type
Article
- DOI
10.1023/A:1024945426509