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Abstract：
The reaction of MCM-41 with tetramethyl tin was studied under high vacuum condition, and the composition, structure and properties of the resulted solid were characterized by element analysis, gas volumetry analysis, ICP, XRD, FTIR, DRS(diffuse reflectance spectroscopy), C-13 and Sn-119 MAS NMR, XPS, BET, TPD, TPR, adsorption of nitrogen etc., respectively. The results showed that the reaction occurred on the surface without destroying the framework structure of the zeolite, leading to the formation of the monografted species (drop Si-O) SnMe3 for MCM-41 at 773 K. Grafting methyltin species on the surface resulted in decrease of the pore size and the mesoporous volume of MCM-41. The reaction temperature of MCM-41 with tetramethyl tin was 343 K which is higher than that of HY zeolite with tetramethyl tin(193 K) and SnMe3/MCM-41 is thermal stable under 673 K and its thermal stability is higher than that of SnMe3/HY.
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ACTA PHYSICO-CHIMICA SINICA
ISSN： 1000-6818
CN： 11-1892/O6
Year： 2005
Issue： 2
Volume： 21
Page： 146-150
0 . 4 2 7
JCR@2005
1 0 . 8 0 0
JCR@2023
ESI Discipline： CHEMISTRY;
JCR Journal Grade：4
Cited Count：
WoS CC Cited Count： 6
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 3
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