本文简要综述了本课题组近年来在单晶氧化铁空心纳米结构制备与生长机理研究方面的相关工作.通过采用磷酸根与硫酸根的双阴离子调节,结合反应时间、反应温度等条件的改变,实现了对α-Fe2O3单晶空心纳米结构形貌、尺寸和表面结构的良好调控,并提出一种针对非层状结构纳米环/纳米管新颖生长机理,即“配位辅助的定向溶解机理”.以所制备的α-Fe2O3为前驱体,采用气相还原方法,成功制备得到了系列单晶Fe3O4和γ-Fe2O3管状及环状纳米结构,并对单个Fe3O4纳米环的磁学行为进行了考察. In this paper, the recent work on the preparation and growth mechanism of single-crystal iron oxide hollow nanostructures has been briefly reviewed.In this paper, by the double anion adjustment of phosphate and sulfate, combined with the change of reaction time and reaction temperature, The morphology, size and surface structure ofα-Fe2O3 single-crystal hollow nanostructures were well regulated and a novel mechanism of the growth of non-layered nanorings / nanotubes was proposed, that is, the “directional coordination mechanism” ".A series of single crystal Fe3O4 and γ-Fe2O3 tubular and cyclic nanostructures were successfully prepared by the gas phase reduction method using the prepared α-Fe2O3 as precursor, and the magnetic behavior of a single Fe3O4 nanowire Inspected