Preparation of silylated {alpha}-zirconium phosphate and its thermal behavior

Porous zirconium phosphate was prepared by silylation with organic silanes. Octylamine was intercalated into {alpha}-Zr(HPO{sub 4}){sub 2}.H{sub 2}O for expanding interlayer spacing and 1,2-bis(dimethylchlorosilyl)ethane (BMCE) was used for silylation of inorganic layers in toluene. The number of oc...

Full description

Saved in:
Bibliographic Details
Published in:Materials research bulletin 2008-01, Vol.43 (1)
Main Authors: Takei, Takahiro, Kumada, Nobuhiro, Kinomura, Nobukazu, Nakayama, Hirokazu, Tsuhako, Mitsutomo
Format: Article
Language:English
Subjects:
HEAT TREATMENTS
LAYERS
MATERIALS SCIENCE
NUCLEAR MAGNETIC RESONANCE
POROUS MATERIALS
SILANES
SPECIFIC SURFACE AREA
TEMPERATURE RANGE 0400-1000 K
X-RAY DIFFRACTION
ZIRCONIUM PHOSPHATES
ZIRCONIUM-ALPHA
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Porous zirconium phosphate was prepared by silylation with organic silanes. Octylamine was intercalated into {alpha}-Zr(HPO{sub 4}){sub 2}.H{sub 2}O for expanding interlayer spacing and 1,2-bis(dimethylchlorosilyl)ethane (BMCE) was used for silylation of inorganic layers in toluene. The number of octhylamine molecules intercalated was similar to the number of phosphorus in the inorganic layers. On the other hand, that of BMCE molecule after silylating treatment was much smaller than that of phosphorus. The interlayer spacing of silylated compound was confirmed to expand via high-temperature XRD patterns and was preserved on thermal treatment up to around 500 deg. C. The maximum specific surface area of the silylated compound heated at 300 deg. C was around 70 m{sup 2}/g, though that was smaller for silylated compounds heated at higher and lower temperature.
ISSN:0025-5408
1873-4227
DOI:10.1016/j.materresbull.2007.02.021