Effect of Pore Structure on the Nitridation of Mesoporous Silica with Ammonia
β Scribed by Fumitaka Hayashi; Ken-ichi Ishizu; Masakazu Iwamoto
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 757 KB
- Volume
- 2010
- Category
- Article
- ISSN
- 1434-1948
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Mesoporous materials were synthesized without and with the addition of salts such as NaCl and NH 4 Cl and were characterized using dierent analytical techniques. The hydrothermal stability was investigated by water treating these mesoporous materials at 373 K for various times in closed bottles. Add
Pore diameter of mesoporous materials has been tailored by adding fluorocarbons as organic auxiliaries. Characterization results show that perfluoroheptane and perfluorodecalin (PFD) can be effectively used as expander. The pore size is increased from 4.0 to 6.8 nm. However a transition from a well