Iron oxide nanotube material and preparation method thereof

The invention relates to the field of nano composite material preparation, and particularly discloses an iron oxide nanotube material and a preparation method thereof. The iron oxide nanotube materialis characterized in that beta-FeOOH nanorods are used as a raw material, beta-FeOOH nanotubes are obtained through polyacid etching, then the beta-FeOOH nanotubes are heated and converted to obtain iron oxide nanotubes with stable morphology, and the surfaces of the iron oxide nanotubes are in a hollow tubular shape. The iron oxide nanotube material is a nanoscale tubular material and has the characteristics of high capacity and good cycle performance, and the preparation method has the characteristics of low cost, simple process flow, mild reaction conditions and utilization of large-scale production. 本发明涉及纳米复合材料制备领域，特别公开了一种氧化铁纳米管材料及其制备方法。该氧化铁纳米管材料，其特征在于：以β-FeOOH纳米棒为原料，通过多酸刻蚀得到β-FeOOH纳米管，β-FeOOH纳米管再经加热转化得到形貌稳定的氧化铁纳米管，该氧化铁纳米管表面呈中空管状。本发明的氧化铁纳米管材料是纳米级管状材料，具有容量高、循环性能良好的特地，其制备方法具有成本低、工艺流程简单、反应条件温和以及利用大规模生产的特点。