Ce_2O_3/WO_3 photocatalyst was prepared by microwave method and was characterized by X-ray diffraction(XRD),electron probe microanalysis(EPMA),ultraviolet-visible light spectrophotometer and BET.

Nano structured tungsten oxide films have been prepared using a sol-gel process with the starting tungsten powders together with the spin coating method in this paper.

Nano powder tungsten oxide is prepared by using a sol-gel process with oxalic acid and benzoic acid as coagulator.

The mesoporous WO_3 film was prepared by the solgel-pyrolysis method with the PEG-400 as the structure-directing agent.

A series of WO_3 catalysts were obtained through pyrolysis of ammonium paratungstate under different O_2/Ar at 700℃.

WO_3 nano-powder was prepared by CTAB/butarol/butane/H_2O microemulsion system with microemulsion method, and the structure, size and topography of WO_3 nano-powder were characterized with X-ray diffractometer, transmissive electron microscopy.

Under the optimal conditions that n ( cyclohexanol) ∶n ( hydrogen peroxide)∶n ( tungsten trioxide) was 100∶600∶4,the reaction temperature was 100℃ and the reaction time was 6 h,the isolated yield of adipic acid could reach 67.

when n(cyclohexanone)∶n(hydrogen peroxide)∶n(tungsten trioxide) was 100∶500∶2,and the reaction temperature was 120 ℃,the reaction time was 6 h,the isolated yield of .

The effect of the preparation process on particle size, specific surface area, crystal form and crystalline morphology of the tungsten trioxide was investigated by TEM and XRD etc.

Discolor treatment of chemical fiber wastewater was studied using WO 3 as catalyst in this paper.

WO 3-PEO electrochromic thin films are prepared by sol-gel method,and the method of orthod experiment design,and the effects o f dopping PEO on the electrochromic properties of WO 3 thin films have been st udied by using electrochemical cycling Voltampere.

WO 3 electrochromic thin films were grown by low voltage reactive ion plating on glass and plastic substrates.