A carbon cloth-loaded layered hexagonal phase tungsten trioxide supercapacitor electrode material and preparation method thereof

The invention discloses a carbon cloth-loaded layered hexagonal phase tungsten trioxide supercapacitor electrode material and a preparation method thereof. First, the carbon cloth is pretreated with a nitric acid solution; the Na 2 WO 4 2H 2 O was dissolved in deionized water, and the pH was adjusted to a predetermined value to obtain solution A; secondly, the pretreated carbon cloth was immersed in the polytetrafluoroethylene lining with solution A for homogeneous hydrothermal reaction. After the reaction was completed, The product is washed and dried to obtain a precursor; finally, the precursor is calcined to obtain a carbon cloth-supported layered hexagonal phase tungsten trioxide supercapacitor electrode material. The carbon cloth-supported layered hexagonal phase tungsten trioxide electrode material prepared by the present invention has excellent capacitance performance, at 8mA cm ‑2 The specific capacity can reach 2918mF cm under the current density ‑2 , 50mA cm ‑2 Under the high current density, after 5000 cycles, the capacity retention rate is 99.3%, and the synthesis process of the invention is simple, non-toxic and pollution-free, and it is a supercapacitor electrode material with potential advantages.