LIN Hongtao, LI Hongling, CHEN Xiaoya, YANG Min, QI Yanxing

(1. National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P.R. China.)

(2. Graduate University of Chinese Academy of Sciences, Beijing, 100039, P.R. China.)

Abstract: In this paper, hexagonal MoO₃ nanorods with diameters of between 80-150 nm were synthesized in ionic liquids (1-butyl-3-methylimidazolium chloride, [BMIM]Cl/water solutions by ultrasonic method. The microstructure and morphology of the products were characterized by the techniques of X-ray powder diffraction (XRD), Fourier-transform spectrometer (FT-IR), field emission scanning electron microscope (FESEM), High-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED). The influences factors such as reaction duration, the amount of [BMIM]Cl and other imidazolium ionic liquids were investigated in detail. The reaction mechanism was also discussed. In addition, catalytic combustion of methane was investigated on α-MoO₃ nanorods prepared by calcining the as-prepared products at different temperatures.

Key words: Nanomaterials; Characterization; catalyst; MoO₃; Ultrasonic

E-mail: qiyx@lzb.ac.cn.

Journal of Molecular Catalysis, Vol. 24, Issue 2, 2010, 99-104