【摘要】 提出了一种以氧化硅层柱磷酸锆（SiO₂-ZrP）的前驱体,氨丙基硅酸酯嵌入磷酸错（APS-ZrP）为载体制备负载氧化铁的氧化硅层柱磷酸锆的新方法.与传统方法相比,新方法制得的样品具有较大的比表面和孔容.X射线粉末衍射（XRD）和程序升温还原（TPR）的结果表明采用新方法有利于氧化铁在载体表面的高度分散,分散阈值为0.25gFe₂O₃/g（SiO₂-ZrP）,远超过直接以SiO₂-ZrP为载体浸渍草酸铁铵的传统方法得到样品.同时,用新方法制得的氧化铁催化剂表现了较高的乙苯脱氢活性,是一类值得研究的催化材料.更多还原

【Abstract】 A new method is proposed to prepare iron oxide supported on silica pillared phosphates with high surface areas by impregnating iron species on the precursor of silica pillared zirconium phosphates (APS - ZrP) . Compared with samples made by conventional method, samples prepared by the new method have much larger surface areas and pore volumes. The results of X - ray diffraction (XRD) and temperature programmed reduction (TPR) indicate that the samples obtained by this new method have better Fe2O3 dispersion than those obtained by conventional method and the dispersion threshold is 0.25g Fe2O3/g (SiO2 - ZrP). The pillared materials obtained by the new method show good activities in dehydrogenation of ethylbenzene.更多还原