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Phenylsulfonic Acid Functionalized Mesoporous Silica Catalyzed Transetherification of Alcohols with Dimethoxymethane.

✍ Scribed by Jian-Ming Yang; Jian Lue

Publisher
John Wiley and Sons
Year
2005
Weight
18 KB
Volume
36
Category
Article
ISSN
0931-7597

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πŸ“œ SIMILAR VOLUMES

Phenylsulfonic Acid Functionalized Mesop
Phenylsulfonic Acid Functionalized Mesoporous Silica Catalyzed Transetherification of Alcohols with Dimethoxymethane
✍ Yang Jian-Ming; LΓΌ Jian πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 78 KB

Phenylsulfonic acid functionalized mesoporous silica was synthesized by condensation of tetraethylorthosilicate with phenyltrimethoxysilane, and then sulfonation using 30% fuming sulfuric acid. The material was characterized using FT-IR, DSC, XPS, TEM and N 2 adsorption/desorption measurements. DSC

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## Abstract Heteropoly acids (HPA), such as tungstophosphoric acid (H~3~PW~12~O~40~ Β· __x__H~2~O) (HPW), molybdophosphoric acid (H~3~PMo~12~O~40~ Β· __x__H~2~O) (HPMo) and tungstosilicic acid (H~4~SiW~12~O~40~ Β· __x__H~2~O) (HSiW) were supported on mesoporous silica such as MCM‐41, FSM‐16 and SBA‐15

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In order to prepare functionalized mesoporous materials with sulfonic acid groups used as solid acid catalysts or as separation materials, a simple secondary modification method has been developed. Based on our previous work, SBA-15 materials with a high surface silanol density were prepared by simu