Nearly spherical La<3+> doped Ce1-xLaxO2 nano polishing powder and preparation method thereof
A near-spherical, polishing powder technology, applied in the field of near-spherical La3+-doped Ce1-xLaxO2 nano-polishing powder and its preparation, can solve the problems of high cost of LiCl salt and unsuitable for mass production of powder, and reduce polishing time, size and shape. The effect of good appearance and simple preparation process
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Embodiment 1
[0027] 1) Take 0.9mmol of Ce(NO 3 ) 3 ·6H 2 O, 0.1 mmol La(NO 3 ) 3 ·6H 2 0, the sodium nitrate of 5mmol, the sodium chloride of 5mmol mixes and grinds in crucible to obtain mixture evenly;
[0028] 2) Pour the mixture into absolute ethanol and magnetically stir it evenly at a speed of 600r / min, then pour it into a crucible and dry it in a drying oven at 60°C to obtain a mixed salt;
[0029] 3) Place the dried mixed salt together with the crucible in a muffle furnace at a heating rate of 5°C / min from room temperature to 750°C and roast for 3 hours, then cool down to 500°C at a cooling rate of 5°C / min and then cool naturally ;
[0030] 4) Wash the calcined product with magnetic stirring of 80°C deionized water to remove impurities and salt ions to obtain a white precipitate;
[0031] 5) Pour the white precipitated product into a centrifuge tube, centrifuge and wash it with deionized water 3 times in a centrifuge at a speed of 6000r / min, each time for 2min, then put it in...
Embodiment 2
[0034] 1) Take 0.9mmol of Ce(NO 3 ) 3 ·6H 2 O, 0.1 mmol La(NO 3 ) 3 ·6H2 0, the sodium nitrate of 5mmol, the sodium chloride of 5mmol mixes and grinds in crucible to obtain mixture evenly;
[0035] 2) Pour the mixture into absolute ethanol and magnetically stir it evenly at a speed of 500r / min, then pour it into a crucible and dry it in a drying oven at 60°C to obtain a mixed salt;
[0036] 3) Place the dried mixed salt together with the crucible in a muffle furnace at a heating rate of 5°C / min from room temperature to 800°C and roast for 2 hours, then cool down to 500°C at a cooling rate of 5°C / min and then cool naturally ;
[0037] 4) Wash the calcined product with deionized water at 60°C with magnetic stirring to remove impurities and salt ions to obtain a white precipitate;
[0038] 5) Pour the white precipitated product into a centrifuge tube, centrifuge and wash it with deionized water 3 times in a centrifuge at a speed of 7000r / min, each time for 2min, then put it...
Embodiment 3
[0041] 1) Take 0.9mmol of Ce(NO 3 ) 3 ·6H 2 O, 0.1 mmol La(NO 3 ) 3 ·6H 2 0, the Repone Potassium of 5mmol, the NaCl of 5mmol is mixed and ground in a crucible to obtain a mixture;
[0042] 2) Pour the mixture into absolute ethanol and magnetically stir it evenly at a speed of 500r / min, then pour it into a crucible and dry it in a drying oven at 70°C to obtain a mixed salt;
[0043] 3) Place the dried mixed salt together with the crucible in a muffle furnace at a heating rate of 5°C / min from room temperature to 800°C and roast for 3 hours, then cool down to 500°C at a cooling rate of 5°C / min and then cool naturally ;
[0044] 4) Wash the calcined product with 70°C deionized water with magnetic stirring to remove impurities and salt ions to obtain a white precipitate;
[0045] 5) Pour the white precipitated product into a centrifuge tube, centrifuge and wash it with deionized water 3 times in a centrifuge at a speed of 6000r / min, each time for 2min, then put it into a dr...
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