Incorporation of iodine into the channels of AlPO4-5 crystals
β Scribed by F.Y. Jiang; R.C. Liu
- Book ID
- 108191361
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 279 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0022-3697
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π SIMILAR VOLUMES
Large, perfect hexagonally shaped AlPO 4 -5 crystals with maximum length up to 1.4 mm have been crystallized in hydrothermal syntheses carried out at 453 K with a crystallization period of 20 h. The improved length growth is attributed to the replacement of triethylamine (TEA) with tripropylamine (T
Optical properties are studied for Se species accommodated in channels of an AlPO 4 -5 single crystal. Polarized Raman spectra show that the Se species is of helical chain structure with D 3 symmetry. The optical phonon modes of the Se chains are shifted towards higher frequencies from that of the t
Large crystals of the molecular sieve AIP04-5 up to 920 pm in !en th have been rown during hydrothermal synthesis by using trtethylamine as a templating agent. The yieldlof the AIP04-5 $as, is within a range of 50 -60%.