| abstract |
The invention discloses a preparation method and application of a self-thinned porous tungsten trioxide nano sheet material, wherein the method comprises the following steps of: cutting a tungsten net, and ultrasonically washing the tungsten net for 15min by using acetone, ethanol and deionized water respectively; adding 50mL of deionized water and 2.66mL of concentrated sulfuric acid into a 50mL beaker, stirring, anodizing for 4 hours under the voltage of 25V, and changing the tungsten net from black to light yellow; calcining at 500 deg.C in muffle furnace at 2 deg.C/min for 4 hr, and naturally cooling to room temperature to obtain WO 3 (ii) a Step two, first reduction: under the voltage of 3V, taking 0.5mol/L sodium sulfate solution as electrolyte, carrying out cathodic reduction for 9h, washing and drying to obtain 1R-WO 3 (ii) a Step three, second reduction: under the voltage of 3V, taking 0.5mol/L sodium sulfate solution as electrolyte, carrying out cathodic reduction for 9h, washing and drying to obtain 2R-WO 3 (ii) a The method has the advantages of simple process, environmental protection and quick operation. |