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A new family of porous mixed oxides with pores largely in the 8–20Å range have been prepared. TEOS acts as a solvent and as a source of silica to which aluminum butoxide and transition metal acetates are added. Neutral amines are added as templates and to effect hydrolysis. This paper describes the ZnO–Al 2 O 5 –SiO 2 system but similar results have been obtained with other...
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