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TinO2n-1是钛的一系列亚化学计量氧化物,具有导电性好、可见光响应能力强、电化学性能优异、环保无毒等诸多优良特性。其中,Ti4O7单晶的电导率达1500 S·cm-1,和石墨相当。TinO2n-1的相结构、电磁学以及电化学方面的研究已有很多进展。目前,科研人员已开发出了一系列制备TinO2n-1的方法,最主要的方法是高温还原Ti O2及其前驱体,已成功制备出纳米球、纳米管及纳米线等不同形貌的材料。由于其特性优良,TinO2n-1在惰性电极、催化剂载体、锂电池、热电及光电材料、光催化降解等方面的应用引起了研究人员的关注,并得到一些商业化应用,例如Ti4O7已开发为商业电极等,具有广阔的应用前景。本文对TinO2n-1的结构及物化特性进行了总结,并概括归纳了该系列亚氧化物的制备方法,最后介绍了TinO2n-1目前的应用情况并对今后的发展作出展望,以期为TinO2n-1系列化合物的研究发展提供相关的参考和依据。
TinO2n-1 is a series of titanium sub-stoichiometric oxides, with good conductivity, visible light response, excellent electrochemical performance, environmental protection and many other non-toxic properties. Among them, Ti4O7 single crystal conductivity of 1500 S · cm-1, and graphite quite. TinO2n-1 phase structure, electromagnetism and electrochemical research has made a lot of progress. At present, researchers have developed a series of methods for preparing TinO2n-1. The most important method is to reduce TiO2 and its precursors at high temperature. Nanoparticles, nanotubes and nanowires have been successfully prepared. Due to its excellent properties, the application of TinO2n-1 in inert electrode, catalyst support, lithium battery, thermoelectric and optoelectronic materials, photocatalytic degradation has drawn the attention of researchers and obtained some commercial applications. For example, Ti4O7 has been developed into commercial Electrodes, etc., has a broad application prospects. This paper summarizes the structure and physico-chemical properties of TinO2n-1, and summarizes the preparation methods of this series of sub-oxides. Finally, the current application of TinO2n-1 is introduced and the future development is prospected in order to provide a new method for the determination of TinO2n-1 Series of compounds research and development provide relevant reference and basis.