Acidic functional groups incorporated in ordered mesoporous materials: a comparison among different host matrices

被引：0
|
作者：
Onida, Barbara [1 ]
Fiorilli, Sonia [1 ]
Camarota, Beatrice [1 ]
Perrachon, Daniela [1 ]
Bruzzoniti, Maria Concetta
机构：
[1] Politecn Torino, Dipartimento Sci Mat & Ingn Chim, Cso Duca Abruzzi 24, I-10129 Turin, Italy
来源：
ZEOLITES AND RELATED MATERIALS: TRENDS, TARGETS AND CHALLENGES, PROCEEDINGS OF THE 4TH INTERNATIONAL FEZA CONFERENCE | 2008年 / 174卷
关键词：
ordered mesoporous materials; functionalization; IR; acidic groups; potentiometric titration;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Bronsted acidity of carboxylic groups on the surface of SBA-15 and periodic mesoporous organosilicas (phenylene-bridged and ethylene-bridged PMOs), incorporated by co-condensation route, is measured as equilibrium constant of the reversible proton-transfer reaction with ammonia from gas phase and in aqueous solution by potentiometric titration. The former approach reveals the effect of the surface nature, discussed in terms of polarity.
引用
收藏
页码：67 / 72
页数：6
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