Method for preparing nano tungsten disulfide with fullerene structure
A technology of fullerene structure and tungsten disulfide, applied in chemical instruments and methods, tungsten compounds, inorganic chemistry, etc., can solve the problems of long reaction time, complex process and high preparation cost, and achieve short reaction time and high reaction efficiency. , The effect of low preparation cost
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Embodiment 1
[0031] Sodium tungstate is dissolved in deionized water at room temperature, the concentration range is 10g / 100ml, and the above solution is ion-exchanged with a cationic ion exchange resin to obtain a yellow transparent tungstic acid sol; add the formed tungstic acid sol After adding 2% polyethylene glycol dispersant, it was dried at a temperature of 100° C. to obtain a xerogel.
[0032] The tungstic acid xerogel was reduced with hydrogen at 580°C for 1 hour to obtain low-priced tungsten oxide powder mainly composed of purple-black tungsten dioxide. Mix 10 grams of low-priced tungsten oxide powder with elemental sulfur at a molar ratio of 1:20, and place it in a stainless steel container for high-temperature self-pressurization reaction. The heating temperature of the stainless steel container is 800°C, keep it warm for 1 hour, and then cool it down to room temperature Open the stainless steel reaction vessel to obtain tungsten disulfide powder. XRD detection shows that the ...
Embodiment 2
[0034] Sodium tungstate was dissolved in deionized water at room temperature, the concentration range was 10g / 100ml, and the above solution was ion exchanged with cationic ion exchange resin to obtain yellow transparent tungstic acid sol; the formed tungstic acid sol was added to 5 % dimethyl sulfoxide dispersion stabilizer, dried at a temperature of 100 ° C to obtain a xerogel.
[0035] The tungstic acid xerogel was reduced with hydrogen at 600°C for 1 hour to obtain low-priced tungsten oxide powder mainly composed of purple-black tungsten dioxide. Mix 10 grams of low-priced tungsten oxide powder with elemental sulfur at a molar ratio of 1:30, and place it in a stainless steel container for high-temperature self-pressurization reaction. The heating temperature of the stainless steel container is 750°C, keep it warm for 1 hour, and then cool it down to room temperature Open the stainless steel reaction vessel to obtain tungsten disulfide powder with a particle size of about 10...
Embodiment 3
[0037] Sodium tungstate is dissolved in deionized water at room temperature, the concentration range is 5g / 100ml, and the above solution is ion exchanged with cationic ion exchange resin to obtain yellow transparent tungstic acid sol; the formed tungstic acid sol is added to After adding 1% polyethylene glycol dispersant and 5% dimethyl sulfoxide stabilizer, it was dried at a temperature of 100° C. to obtain a xerogel.
[0038] The tungstic acid xerogel was reduced with hydrogen at 590°C for 1 hour to obtain low-priced tungsten oxide powder mainly composed of black tungsten dioxide. Mix 8 grams of low-priced tungsten oxide powder with elemental sulfur at a molar ratio of 1:20, and place it in a stainless steel container for high-temperature self-pressurization reaction. The heating temperature of the stainless steel container is 850°C, keep it warm for 1 hour, and then cool it down to room temperature Open the stainless steel reaction vessel to obtain tungsten disulfide powder...
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