Temperature Influencing on Preparation and Electrochemical Performance of Titanium Phosphate Mesoporous Materials

Titanium phosphate mesoporous materials were prepared by use of the sol-gel template method combined with the calcination method. We studied on calcination temperature which has an influence on mesoporous structure and electrochemical performance of the titanium phosphate mesoporous materials. The samples were characterized by large and small angle X-ray diffraction methods, N2 adsorption/desorption technique, high resolution transmission electron microscope(HRTEM) and element analysis instrument. It was shown that too high temperature was bad for the mesoporous materials. Titanium phosphate mesoporous materials showed a better electrochemical performance at 500℃, the first discharge capacity of 94mAh/g under the current density of 150mA/g. And on the other hand, titanium phosphate mesoporous materials at 650℃ with a low capacity of 64mAh/g at the same charge-discharge condition.