三氧化钼的性能及应用

Properties and applications of molybdenum trioxide

三氧化钼(MoO3)具有特殊的结构——由金属原子Mo在中心、氧原子在角边的[MoO6]八面体为基本结构单元,共角、形成链连接,每两个相似的链共边连接形成层状的MoO3化学计量结构,层与层之间靠范德华力作用而交错堆积排列,非常适合其他小分子或离子的嵌入。这种特殊的层状结构使得三氧化钼具有良好的电致变色、光致变色、催化和气敏等性能。介绍了三氧化钼的常用制备方法及其在光电、抑烟/阻燃、催化、气敏材料等方面的应用。综述了国内外学者在这些领域的研究进展和今后的发展方向。

Molybdenum trioxide（MoO3） has a special structure,which is made up of the octahedral basic structural unit,in which the Mo atom is in the center and oxygen atoms in the corner.Basic units are connected in a chain through sharing angles and every two similar chains are connected through sharing the sides to form layered MoO3 stoichiometric structure.Layers are accumulated and arranged in a crisscross pattern under the action of the van der Waals force.This particular structure is very suitable for the embedment of other small molecules or ions and makes MoO3 has good electrochromic,photochromic,catalytic,and gas sensing properties.Some common preparation methods of MoO3 and applications thereof in optoelectronics,smoke suppression/flame retarding,catalysis,gas sensing materials and so on were introduced.In addition,the research progress in those areas by domestic and foreign scholars and the future development direction were also summarized.