Journal
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
Volume 50, Issue 3, Pages 430-436Publisher
SPRINGER
DOI: 10.1007/s10971-009-1961-y
Keywords
Silica-metalloporphyrins hybrid material; Sol-gel method; Catalysis; Hydroxylation; Cyclohexane
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Funding
- Guangzhou Municipality Science & Technology Bureau of China
- National Natural Science Foundation of China
- National Key Foundation [2007 CB815306]
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Three types of novel silica-metalloporphyrins hybrid materials, Si-S-APTCPPFe, Si-S-APTCPPMn and Si-S-APTCPPCo, were prepared at room temperature by sol-gel method involving a thiol-ene polymerization reaction of 5-(4-allyloxy)phenyl-10,15,20-tri(4-chlorophenyl)porphyrin (APTCPP) with 3-mercaptopropyltrimethoxysilane (MPS). The hybrid materials were characterized by XRD, SEM, FT-IR, UV-Vis and TG, and were investigated as catalysts for the aerobic oxidation of cyclohexane. It is found that these hybrid materials are more efficient catalysts than the analogous non-supported metalloporphyrins for cyclohexane hydroxylation in metalloporphyrin-O-2-ascrobate system and the metal ion in the porphyrins significantly affected the catalytic efficiencies of these hybrid materials.
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