中文摘要：

以Fe（NO3）3·9H2O，SnCl4·5H2O为原料，通过改变水热反应的条件合成了铁锡纳米复合氧化物。用X射线衍射仪和透射电镜对产物的结构和微观形貌进行了表征。结果表明：在水热制备铁锡复合氧化物的过程中，通过分步控制温度法和使用不同的沉淀剂可以控制产物的粒径大小和形貌。最终得到以棒状的α—Fe2O3晶体为核，附着有SnO2粒子的纳米复合氧化物。并对复合物形成机理进行了初步探讨。

英文摘要：

Iron- tin nanocomposite oxides were prepared by using Fe（ NO3 ）3 ·9H2O and SnCl4 · 5H2O as raw materials under hydrothermal conditions. The structure and morphology of the products were characterized by powder X - ray diffraction （XRD） and transmission electron microscopy （TEM）. And in the synthesis process of the iron - tin nanocomposite, the size of the products could be controlled through changing the hydrothermal temperature and the precipitant of reaction. And the iron - tin nanocomposite was obtained, in which the rod - like α - Fe2O3 act as ＂ core＂, while the SnO2 nanoparticles embedded on the α - Fe2O3 nanorods serve as the ＂ shell＂ of the composites. A plausible formation mechanism of the nanocomposites was also discussed in the paper.