A three-dimensional multilevel structure antimony-doped monoclinic wo 3 Preparation and detection of no 2 Methods
A antimony-doped, three-dimensional technology, applied in measuring devices, tungsten oxide/tungsten hydroxide, instruments, etc., to achieve the effect of easy operation of the synthesis process and green process
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Embodiment 1
[0046] Dissolve tungsten hexachloride in an ethanol solution at room temperature to prepare an ethanol solution with a concentration of 0.007mol / L, stir thoroughly to fully dissolve the tungsten source, without adding antimony trichloride, add the above reaction solution to a volume of 100mL In a stainless steel autoclave lined with PTFE, heated at 200°C for 10 hours and cooled to room temperature naturally. Wash the blue product several times with ethanol and dry the product.
[0047] Take 0.04 g of the blue powder prepared above, dissolve it in 20 mL of deionized water, and stir for 0.5 h at room temperature. Subsequently, the solution was transferred to a stainless steel autoclave with a polytetrafluoroethylene lining capacity of 50 mL, and heated for 48 hours while maintaining the temperature at 200°C, and then naturally cooled to room temperature after completion. The obtained sample is centrifuged, washed with deionized water, and dried to obtain an undoped antimony monocl...
Embodiment 2
[0050] Dissolve tungsten hexachloride in an ethanol solution at room temperature to prepare an ethanol solution with a concentration of 0.012mol / L, stir thoroughly to fully dissolve the tungsten source, and then add antimony trichloride (SbCl 3 , Sb / W=3wt% (mass ratio) ethanol solution was added to the reaction solution. The above reaction solution was added to a stainless steel autoclave lined with polytetrafluoroethylene with a capacity of 100 mL, heated at 170° C. for 10 hours, and naturally cooled to room temperature. Wash the blue product several times with ethanol and dry the product.
[0051] Take 0.03 g of the blue powder prepared above, dissolve it in 30 mL of deionized water, and stir at room temperature for 1 hour. Subsequently, the solution was transferred to a stainless steel autoclave with a polytetrafluoroethylene lining capacity of 50 mL, and heated for 36 hours while maintaining the temperature at 180°C, and then naturally cooled to room temperature after complet...
Embodiment 3
[0054] Dissolve tungsten hexachloride in an ethanol solution at room temperature to prepare an ethanol solution with a concentration of 0.015mol / L, stir thoroughly to fully dissolve the tungsten source, and then add antimony trichloride (SbCl 3 , Sb / W=5wt% (mass ratio) ethanol solution was added to the reaction solution. The above reaction solution was added to a stainless steel autoclave lined with polytetrafluoroethylene with a capacity of 100 mL, heated at 180° C. for 15 hours, and naturally cooled to room temperature. Wash the blue product several times with ethanol and dry the product.
[0055] Take 0.035 g of the blue powder prepared above, dissolve it in 30 mL of deionized water, and stir at room temperature for 1 hour. Subsequently, the solution was transferred to a stainless steel autoclave with a polytetrafluoroethylene lining capacity of 50 mL, and heated for 36 hours while maintaining the temperature at 180°C, and then naturally cooled to room temperature after comple...
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