Formation of AlVO 4 Solid Solution from Alkoxides
1987; Wiley; Volume: 70; Issue: 8 Linguagem: Inglês
10.1111/j.1151-2916.1987.tb05725.x
ISSN1551-2916
AutoresOsamu Yamaguchi, Tatsuji Uegaki, Yutaka Miyata, Kiyoshí Shimizu,
Tópico(s)Industrial Gas Emission Control
ResumoSolid solutions of AlVO 4 crystallize at lower temperatures than amorphous materials between 50 and 70 mol% Al 2 O 3 prepared by the simultaneous hydrolysis of aluminum and vanadyl alkoxides. They decompose into α‐Al 2 O 3 , and V 2 O 5 , at 775° to 800°C. The compound AlVO 4 prepared from 50 mol% Al 2 O 3 has a triclinic unit cell with a = 0.6471 nm, b = 0.7742 nm, c = 0.9084 nm, α= 96.848°, β= 105.825°, and γ= 101.399°. The volume of the unit cell increases continuously with increases in Al 2 O 3 content. The structure contains tetrahedral AlO 4 , octahedral AlO 6 , and tetrahedral VO 4 groups.
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