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Small crystal zeolite Beta with SiO 2 /Al 2 O 3 ratios ranging from 30 to 400 has been synthesized in a biphasic H 2 O–CTAB–Alcohol system using colloidal precursor which contains secondary building units of zeolite Beta as the silica and aluminum sources. The experimental results evidenced that the synthesis system employed here resulted in readily the formation of...
The SrTiO 3 powders were synthesized from TiO 2 .H 2 O gel under moderate hydrothermal conditions. The influence of TiO 2 .H 2 O gel on the properties of SrTiO 3 powders was studied in detail by transition electron microscopy (TEM) and X-ray diffraction (XRD). The results showed that the crystallization of TiO 2 .H 2 O had an important...
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