Abstract
MnAPO-5 was prepared by a microwave-assisted vapor-phase transport method at 180 A?C in short times. The products were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectra, UVa??vis spectroscopic measurement, NH3-temperature-programmed desorption and esterification reaction. It was found that dry gels prepared with aluminum isopropoxide, phosphoric acid and manganese acetate could be transferred to MnAPO-5 in the vapors of triethylamine and water by the microwave-assisted vapor-phase transport method at 180 A?C for less than 30 min. The crystallization time was greatly reduced by the microwave heating compared with the conventional heating. The resulting MnAPO-5 exhibited much smaller particle sizes, higher surface areas and slightly higher catalytic activity in the esterification of acetic acid and butyl alcohol than those prepared by the conventional vapor-phase transport method and hydrothermal synthesis.
Original language | English |
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Pages (from-to) | 956 - 959 |
Number of pages | 4 |
Journal | Materials Research Bulletin |
Volume | 44 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2009 |
Externally published | Yes |