Thermal expansion properties of stannosilicate molecular sieve with MFI type structure

TitleThermal expansion properties of stannosilicate molecular sieve with MFI type structure
Publication TypeJournal Article
Year of Publication2012
AuthorsNiphadkar, PS, Bhange, DS, Selvaraj, K, Joshi, PN
JournalChemical Physics Letters
Volume548
Pagination51-54
Date PublishedOCT
ISSN0009-2614
Abstract

An in situ high temperature X-ray diffraction study was carried out for investigating the thermal expansion properties of Si-MFI and SnSi-MFI molecular sieves. The thermal stability up to 973 K and a negative lattice thermal expansion in anisotropic manner was exhibited by both the phases in the temperature range of 373-973 K. The trend observed in contraction along the axes was as: a > c > b. The substitution of Sn4+ in MFI framework resulted in an expansion of unit cell volume and in an increase in the lattice thermal expansion coefficient in the temperature range 423-973 K. (C) 2012 Elsevier B. V. All rights reserved.

DOI10.1016/j.cplett.2012.08.023
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)2.145
Divison category: 
Catalysis and Inorganic Chemistry