中文摘要：

为了制备高比表面积的多孔γ-Al2O3，采用醇-水热法合成了虫孔状介孔面心立方晶体结构的γ-Al2O3片状粒子，并利用X-射线衍射、N2吸附-脱附、扫描电镜、透射电镜和选区电子衍射等技术表征了所得氧化铝粒子的物理性质．实验结果表明，以异丁醇铝为铝源，正丙醇水溶液作溶剂，月桂酸作模板剂（异丁醇铝与月桂酸的质量比为4：1）的醇-水热合成法可制备出具有较好结晶度和虫孔状介孔γ-Al2O3粒子，经600℃灼烧后所得样品的比表面积高达306m^2／g，其平均孔径为5nm。

英文摘要：

To obtain high-surface-area porous γ-Al2O3, the alco-hydrothermal method was adopted to synthesize plate-shaped wormhole-like mesoporous γ-Al2O3 particles with a face-centered cubic crystal structure, and characterized the physical properties of these materials by means of the X-ray diffraction, N2 adsorption-desorption, scanning electron microscopy, transmission electron microscopy, and selected area electron diffraction techniques. It has been shown that mesoporous γ-Al2O3 particles with the wormhole-like morphology and good crystalinity can be fabricated with aluminum tri-sec-butoxide as the aluminum source, 1- propanol aqueous solution as the solvent, and lauric acid as the template （the mass ratio of aluminum tri-secbutoxide to lauric acid = 4 ： 1）. The surface area of the Al2O3 sample obtained at 600℃ calcination was up to 306 m^2/g and its average pore diameter was ca. 5 nm.