DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4061

Title: SMALL-PORE MOLECULAR-SIEVES SAPO-34 AND SAPO-44 WITH CHABAZITE STRUCTURE - A STUDY OF SILICON INCORPORATION
Authors: ASHTEKAR, S
CHILUKURI, SVV
CHAKRABARTY, DK
Keywords: crystalline inorganic solids
nuclear-magnetic-resonance
state nmr
si
silicoaluminophosphate
conversion
methanol
spectroscopy
hydrocarbons
catalysts
Issue Date: 1994
Publisher: AMER CHEMICAL SOC
Citation: JOURNAL OF PHYSICAL CHEMISTRY, 98(18), 4878-4883
Abstract: Two small-pore silicon-substituted molecular sieves SAPO-34 and SAPO-44 with varying amount of silicon have been synthesized and characterized by XRD, SEM, FT-IR spectroscopy, and thermal analyses. Their acidity has been measured quantitatively by temperature-programmed desorption of ammonia. The results of these studies along with solid-state MAS NMR results show that the major part of silicon substitutes isolated phosphorus atoms in the structure whereas some amount of it forms small silica patches. The extent of formation of such small patches is more noticeable in SAPO-34 than in SAPO-44.
URI: http://dx.doi.org/10.1021/j100069a018
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4061
http://hdl.handle.net/10054/4061
ISSN: 0022-3654
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback