二氧化钛纳米管的制备和应用

Preparation and application of titanium dioxide nanotubes

二氧化钛纳米管属于一维纳米材料,既具有纳米材料普遍具有的量子尺寸效应,还具有独特的机械性、热稳定性和光学性质,因此其具有特殊的研究意义。采用简单易操作的阳极氧化法可在钛基底上制备出结构致密、形貌可控、与钛基底结合紧密的纳米管阵列。相比二氧化钛的纳米颗粒和纳米薄膜等材料,高度有序且表面积大的TiO纳米管可以为电子和离子提供更快速的运输通道。基于阳极氧化法和磁控溅射及电化学沉积法,探究了TiO纳米管在锂电池、电催化、光催化以及钛合金紧固件等领域的相关应用。

Titanium dioxide nanotubes belong to one-dimensional nanomaterials, which not only have the quantum size effect common to nanomaterials, but also have unique mechanical properties, thermal stability and optical properties, so it has special research significance. Nanotube arrays with compact structure, controllable morphology and close bonding with titanium substrate can be prepared by anodic oxidation method. Highly ordered TiOnanotubes with large surface area can provide faster transport channels for electrons and ions than TiOnanoparticles and nanofilms. Based on anodic oxidation, magnetron sputtering and electrochemical deposition methods, this research group studied the related applications of TiOnanotubes in the fields of lithium battery, electrocatalysis, photocatalysis and titanium alloy fastener.