Highly efficient synthesis of Fe-containing mesoporous materials by using semi-fluorinated surfactant and their high activities in Friedel–Crafts alkylations
✍ Scribed by Yunchen Du; Sen Liu; Yanyan Ji; Yonglai Zhang; Fujian Liu; Qian Gao; Feng-Shou Xiao
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 632 KB
- Volume
- 131
- Category
- Article
- ISSN
- 0920-5861
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✦ Synopsis
Fe-containing mesoporous materials (Fe-JLU-15) with various Si/Fe ratios (47-112) have been successfully synthesized by using semifluorinated surfactant of FSO-100 as a template. XRD, N 2 isotherm, and TEM techniques indicate that these samples have worm-like mesostructure with uniform pore size. UV-vis and ESR spectra suggest that Fe species in Fe-JLU-15 are mainly tetrahedrally coordinated. Interestingly, compared with Fe-SBA-15, the efficiency of incorporation of Fe species into Fe-JLU-15 is relatively high. Very importantly, catalytic data in benzylation of aromatic compounds such as benzene, toluene, and ethylbenzene with benzyl chloride shows that Fe-JLU-15 samples are very active and recycle catalysts.