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Synthesis, characterization, and catalytic activity of sulfonic acid-functionalized periodic mesoporous organosilicas
Yang, QH; Liu, J; Yang, J; Kapoor, MP; Inagaki, S; Li, C
关键词Sulfonic Acid Mesoporous Bifunctional Organosilica Ethane Bridged Phenylene Bridged Bisphenol a
刊名JOURNAL OF CATALYSIS
2004-12-10
DOI10.1016/j.jcat.2004.09.007
228期:2页:265-272
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]MCM-41-TYPE SILICA ; ORGANIC GROUPS ; COMBINED ALKYL ; CHANNEL WALLS ; FRAMEWORKS
英文摘要Sulfonic acid-functionalized periodic mesoporous organosilicas were synthesized directly by cocondensation of (R'O)(3)Si-R-Si(OR')(3) (R = CH2CH2 and C6H4; R' = CH3 and C2H5) with 3-mercaptopropyltrimethoxysilane (MeO)(3)SiCH2CH2CH2SH in the presence of H2O2 using nonionic oligomeric polymer surfactant C18H37(OCH2CH2)(10)OH in acidic medium. The sulfonic acid functionalities (-SO3H) were generated in situ by oxidation of the propylthiol using H2O2 as oxidant during the synthesis process. Powder X-ray diffraction patterns and nitrogen sorption indicate the formation of well-ordered mesoporous material with uniform porosity. The highest acid-exchange capacity (acid-base titration methods) was 1.72 H+ mmol/g. Complete oxidation of -SH to -SO3H was observed as evidenced by X-ray photoelectron spectroscopy. For comparison, the sulfonic acid-functionalized mesoporous organosilicas were also prepared by a grafting method. The catalytic properties of the materials were investigated in liquid-phase condensation of phenol with acetone to form Bisphenol A. All sulfonic acid-functionalized mesoporous organosilicas show high catalytic activity. The highest TOF obtained for the mesoporous organosilica is 17.2. (C) 2004 Elsevier Inc. All rights reserved.
语种英语
WOS记录号WOS:000225661200001
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139547
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan
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Yang, QH,Liu, J,Yang, J,et al. Synthesis, characterization, and catalytic activity of sulfonic acid-functionalized periodic mesoporous organosilicas[J]. JOURNAL OF CATALYSIS,2004,228(2):265-272.
APA Yang, QH,Liu, J,Yang, J,Kapoor, MP,Inagaki, S,&Li, C.(2004).Synthesis, characterization, and catalytic activity of sulfonic acid-functionalized periodic mesoporous organosilicas.JOURNAL OF CATALYSIS,228(2),265-272.
MLA Yang, QH,et al."Synthesis, characterization, and catalytic activity of sulfonic acid-functionalized periodic mesoporous organosilicas".JOURNAL OF CATALYSIS 228.2(2004):265-272.
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