A kind of hydrothermal solvent method prepares bazro 3 : (ce, pr) nano powder method
A technology of nano-powder and solvent method, which is applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of unsuitability for industrial production, high equipment requirements, low output, etc., and achieve short cycle, low raw material cost, The effect of low crystallization temperature
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Embodiment 1
[0020] Ba(NO 3 ) 2 , ZrOCl 2 ·8H 2 O was mixed and dissolved in alcohol-water solution (the ratio of ethanol and water was 3:1) to make a 0.2 mol / L metal salt solution. Dilute KOH to a concentration of 3mol / L mineralizer. Then drop the mineralizer into the prepared metal salt solution until pH = 14, and stir it with a magnetic stirrer. After the titration, put it into the reaction kettle, and then put the reaction kettle into the microwave oven. (temperature, time, pH, etc.) After the reaction, after aging, the resulting precipitate was washed three times with distilled water, and the filtrate was detected with silver nitrate until no chloride ions existed, then washed twice with absolute ethanol, and dried in a drying oven at a temperature of 80°C for 24 hours. Grinding to obtain BaZrO with good dispersion and nearly spherical shape 3 Powder.
Embodiment 2
[0022] Ba(NO 3 ) 2 , ZrOCl 2 ·8H 2 O and different amounts of Ce(NO 3 ) 3 Mix and dissolve in alcohol-water solution (the ratio of ethanol and water is 3:1) to make 0.2 mol / L metal salt solution. Dilute KOH to a concentration of 3mol / L mineralizer. Then drop the mineralizer into the prepared metal salt solution until pH = 14, and stir it with a magnetic stirrer. After the titration, put it into the reaction kettle, and then put the reaction kettle into the microwave oven. (temperature, time, pH, etc.) After the reaction, after aging, the resulting precipitate was washed three times with distilled water, and the filtrate was detected with silver nitrate until no chloride ions existed, then washed twice with absolute ethanol, and dried in a drying oven at a temperature of 80°C for 24 hours. Grinding to obtain BaZrO with good dispersion and nearly spherical shape 3 : Ce powder.
Embodiment 3
[0024] Put Ba(NO 3 ) 2 , ZrOCl 2 ·8H 2 O and different amounts of Pr(NO 3 ) 3 , Ce(NO 3 ) 3 And dissolved in alcohol-water solution (the ratio of ethanol and water is 3:1), dubbed 0.2 mol / L metal salt solution. Dilute KOH to a concentration of 3mol / L mineralizer. Then drop the mineralizer into the prepared metal salt solution until PH = 14, and stir it with a magnetic stirrer. After the titration, put it into the reaction kettle, and then put the reaction kettle into a microwave oven. Conditions (temperature, time, pH, etc.) After the reaction and aging, the obtained precipitate was washed three times with distilled water, and the filtrate was detected with silver nitrate until no chloride ions existed, then washed twice with absolute ethanol, and dried in a drying oven at a temperature of 80°C for 24 hours. Grinding to obtain BaZrO with good dispersion and nearly spherical shape 3 : (Ce, Pr) powder.
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