Preparation method of perovskite structure lead titanate single crystal nanoparticles

[0017] 1) Dissolve titanium dioxide in 6 mol / L potassium hydroxide aqueous solution to adjust Ti 4+ The concentration is 0.01mol / L;

[0018] 2) Under stirring, add Pb dropwise to the titanium dioxide alkaline solution prepared in step 1) 2+ An aqueous lead nitrate solution with an ion concentration of 0.01 mol / L was stirred for 2 hours to obtain an oxyhydroxide suspension of titanium and lead;

[0019] 3) Add the suspended liquid prepared in step 2) into the inner tank of the reactor, use deionized water to adjust the volume of the reaction material in the inner tank of the reactor to 80% of the volume of the inner tank of the reactor, stir for 5 minutes, and titanium The oxyhydroxide molar concentration is 0.1mol / L, the potassium hydroxide molar concentration is 6mol / L, the molar ratio of lead and titanium is 1.0, and the volume basis of the molar concentration is the total volume of the precursor slurry;

[0020] 4) Put the reactor liner equipped with reaction mater

[0023] 1) Dissolve titanium dioxide in 6 mol / L potassium hydroxide aqueous solution to adjust Ti 4+ The concentration is 0.05mol / L;

[0024] 2) Under stirring, add Pb dropwise to the titanium dioxide alkaline solution prepared in step 1) 2+ An aqueous lead nitrate solution with an ion concentration of 0.0625 mol / L was stirred for 2 hours to obtain an oxyhydroxide suspension of titanium and lead;

[0025] 3) Add the suspended liquid prepared in step 2) into the inner tank of the reactor, use deionized water to adjust the volume of the reaction material in the inner tank of the reactor to 80% of the volume of the inner tank of the reactor, stir for 5 minutes, and titanium The oxyhydroxide molar concentration is 0.1mol / L, the potassium hydroxide molar concentration is 6mol / L, the molar ratio of lead and titanium is 1.25, and the volume base of the molar concentration is the total volume of the precursor slurry;

[0026] 4) Place the reactor liner equipped with reaction m

[0029] 1) Dissolve titanium dioxide in 6 mol / L potassium hydroxide aqueous solution to adjust Ti 4+ The concentration is 0.2mol / L;

[0030] 2) Under stirring, add Pb dropwise to the titanium dioxide alkaline solution prepared in step 1) 2+ An aqueous lead nitrate solution with an ion concentration of 0.2 mol / L was stirred for 2 hours to obtain an oxyhydroxide suspension of titanium and lead;

[0031] 3) Add the suspended liquid prepared in step 2) into the inner tank of the reactor, use deionized water to adjust the volume of the reaction material in the inner tank of the reactor to 80% of the volume of the inner tank of the reactor, stir for 5 minutes, and titanium The oxyhydroxide molar concentration is 0.2mol / L, the potassium hydroxide molar concentration is 6mol / L, the molar ratio of lead and titanium is 1.0, and the volume basis of the molar concentration is the total volume of the precursor slurry;

[0032] 4) Put the reactor liner equipped with reaction materia