Title of article
Synthesis and characterization of new catalysts formed by direct incorporation of heteropolyacids into organized mesoporous silica
Author/Authors
Toufaily، نويسنده , , J. and Soulard، نويسنده , , M. and Guth، نويسنده , , J.-L. and Patarin، نويسنده , , J. and Delmote، نويسنده , , L. and Hamieh، نويسنده , , T. and Kodeih، نويسنده , , M. and Naoufal، نويسنده , , D. and Hamad، نويسنده , , H.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
7
From page
285
To page
291
Abstract
The direct incorporation of Keggin-type heteropolyacid H3PW12O40 (PW) in a mesoporous organized silica molecular sieve during the synthesis was studied. The synthesis of silica-organized materials containing heteropolyacid was carried out in acidic media either by associating a non-ionic/cationic surfactants or just a non-ionic surfactant. The decomposition temperature of solids containing PW and prepared with TX100/CTMA, Tergitol 15-S-12 and Tween 60 starts at 130, 115 and 135 °C, respectively. The BET surface area of these solids is measured to be 892, 735 and 787 m2/g, respectively. Their pore diameters are equal to 31, 24 and 34 إ, respectively.
Keywords
silica , Direct incorporation , Heteropolyacid , Acidic media , Mesoporous molecular sieve
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year
2008
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Record number
1796167
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