Pyrochlore Type Tungsten Oxide Application (B)

Pyrochlore type oxide, tungsten mostly A bit deletion type of layered perovskite tissue, wherein a water molecule is formed directly in contact with the two-dimensional layer structure of tungsten by hydrogen bonding interactions between the layers. Chinese name is pyrochlore type oxide, tungsten foreign names Pyrochlore-typeH2W2O7, formula H2W2O7WO3 • 0.5H2O it for layered composites, sensing field, tungsten oxide calcined preparation.

Sodium ion exchange treatment pyrochlore type tungsten oxide were prepared containing H +, Ag +, NH + 4, Li + coke green
Stone type mixture, comparison found, [H-H2W2O7] has the lowest resistivity, and [Li-H2W2O7 relative humidity and resistivity between the number has the best linear law, and the sensor has a good durability and repeated sex. Focusing Greenstone type conducted research found that tungsten oxide Li insertion elements will cause changes in the lattice parameters, and could easily lead to a shift in the original amorphous crystal to generate a cavity structure and function with a certain sense.

In pyrochlore type tungsten oxide thin films as the cathode and lithium foil anode, 1mol / L of LiClO4 do electrolyte solution will power Li evenly embedded tungsten oxide pyrochlore type. The resulting products showed good electrochromic properties, and determines the chemical diffusion coefficient of lithium ions is 1.1 × 10-7cm2 / s, which is the highest value of the correlation coefficient can be achieved in the study.

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