TY - JOUR
T1 - Microwave-assisted fast vapor-phase transport synthesis of MnAPO-5 molecular sieves
AU - Shao, Hui
AU - Yao, Jianfeng
AU - Ke, Xuebin
AU - Zhang, Lixiong
AU - Xu, Nanping
PY - 2009/4/2
Y1 - 2009/4/2
N2 - MnAPO-5 was prepared by a microwave-assisted vapor-phase transport method at 180 °C in short times. The products were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectra, UV-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 °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.
AB - MnAPO-5 was prepared by a microwave-assisted vapor-phase transport method at 180 °C in short times. The products were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectra, UV-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 °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.
KW - A. Inorganic compounds
KW - B. Chemical synthesis
KW - B. Crystal growth
KW - D. Catalytic properties
UR - http://www.scopus.com/inward/record.url?scp=59849091189&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2008.08.006
DO - 10.1016/j.materresbull.2008.08.006
M3 - 文章
AN - SCOPUS:59849091189
SN - 0025-5408
VL - 44
SP - 956
EP - 959
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 4
ER -