摘要:
Magnéli相是通式为TinO2n-1(4≤n≤10)的一系列亚氧化物,具有优异的导电性,对于电池研究具有重要意义。目前,制备Magnéli相钛氧化物的主要办法是高温还原TiO2及其前驱体,此类方法制备过程长且繁冗。介绍了钛的Magnéli相系列化合物在用碳作为还原剂条件下的制备方法,并将微波加热技术引入制备过程。微波加热碳还原制备Magnéli相,不仅使制备时间大大缩短,而且制备的Magnéli相粒度更为细小,形状更加规则。最后对Magnéli相制备方法提出展望,为此类钛氧化物的研究及应用提供相关参考。
Abstract:
Magnéli phase is a series of titanium sub-oxides with the general formula of TinO2n-1（4≤n≤10）,which have excellent conductivity and great significance for battery research.At present,the main method for preparing Magnéli phase titanium oxides is high temperature reduction of TiO2 or its precursors.Such method is complicated and time-consuming. In this paper,the preparation methods for Magnéli phase titanium oxides using carbon as reductant were introduced,and the microwave heating technology was introduced into the preparation process.The method with carbon reduction and microwave heating not only shortens the preparation process,but also makes the Magnéli phase titanium oxides obtained have smaller particle size and more regular shape. Finally,the prospect for preparation methods of Magnéli phase is put forward,providing references for research and application of such titanium oxides.
点击查看大图
下载:
