Special Forms Tungsten Oxide Producing Methods
Nano tungsten oxide has strong organizational ability to grow and in a stable reaction conditions the interactions between molecular are fairly obvious. Molecular can epitaxial growth which is in accordance with lattice arrangement strictly and to form the formation ratio complete and single component structure. With the improvement of nano technology, now there have been some special forms tungsten oxide , including arborescent, clitheriform, nanorods, nanowires and other special forms. There are many producing methods for special form nano tungsten oxide which can be divided into three types: high-temperature synthesis, hydrothermal synthesis method, and solution low temperature synthesis method. Although high-temperature synthesis method is most common, but it has high requirements in equipment so this method is difficult wildly be used. The hydrothermal synthesis method is acidification W (CO) 6 and ammonium tungstate, the reaction is from 2 to 100 hours...