Manganese tetraoxide nanotube and preparation method thereof

The invention discloses a manganous-manganic oxide nanotube and a preparation method thereof. The inner diameter of the manganous-manganic oxide nanotube is 4-10 nm, the outer diameter of the manganous-manganic oxide nanotube is 20-50 nm, and the length of the manganous-manganic oxide nanotube is 200 nm-5 mu m. The preparation method comprises the following steps: firstly, synthesizing a magnesium hydroxide nanotube template by adopting a hydrothermal method, and mildly preparing the manganous-manganic oxide nanotube by adopting an ion exchange method without a calcining process. The ion exchange method adopted in the invention well maintains the tubular morphology of the original template, and the method is mild, simple and convenient, and has industrial application prospects. 本发明公开了一种四氧化三锰纳米管及其制备方法，四氧化三锰纳米管内径在4～10nm之间，外径为20～50nm,管长在200nm～5μm之间。制备方法先采用水热法合成氢氧化镁纳米管模板，采用离子交换的方法温和制备了四氧化三锰纳米管，无需煅烧过程。本发明采用的离子交换法很好地保持了原模板的管状形貌，并且该方法温和、简便，具有工业化应用前景。