Cobalt material doping with ferrous acid bismuth multi-iron and preparation method thereof
A technology of multiferroic materials and bismuth ferrite, which is applied in the direction of magnetism of inorganic materials, can solve the problems of no major improvement, difficult saturation polarization of ferroelectricity, and limited application, and achieve low cost, stable crystal quality, and equipment simple effect
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Embodiment 1
[0019] 1) According to the chemical formula BiCo of the cobalt-doped bismuth ferrite to be synthesized x Fe 1-x o 3 , x=0.05, measure and weigh bismuth nitrate, iron nitrate and cobalt nitrate, be dissolved in dilute nitric acid aqueous solution together, form the aqueous solution that contains bismuth nitrate, iron nitrate and cobalt nitrate, and the concentration of metal ion in the adjustment solution is 0.05mol / L ;
[0020] 2) Under stirring, add excess potassium hydroxide aqueous solution to the aqueous solution containing bismuth nitrate, iron nitrate and cobalt nitrate prepared in step 1), filter and wash the precipitate obtained to obtain the oxyhydroxide of bismuth, iron and cobalt precipitation;
[0021] 3) Add the oxyhydroxide precipitation of bismuth, iron and cobalt and potassium hydroxide into the inner tank of the reactor with an inner tank volume of 60mL, and adjust the volume of the reaction materials in the inner tank of the reactor with deionized water to...
Embodiment 2
[0024] 1) According to the chemical formula BiCo of the cobalt-doped bismuth ferrite to be synthesized x Fe 1-x o 3 , x=0.03, measure and weigh bismuth nitrate, iron nitrate and cobalt nitrate, be dissolved in dilute nitric acid aqueous solution together, form the aqueous solution that contains bismuth nitrate, iron nitrate and cobalt nitrate, and the concentration of metal ion in the adjustment solution is 0.3mol / L ;
[0025] 2) Under stirring, add excess potassium hydroxide aqueous solution to the aqueous solution containing bismuth nitrate, iron nitrate and cobalt nitrate prepared in step 1), filter and wash the precipitate obtained to obtain the oxyhydroxide of bismuth, iron and cobalt precipitation;
[0026] 3) Add the oxyhydroxide precipitation of bismuth, iron and cobalt and potassium hydroxide into the inner tank of the reactor with an inner tank volume of 60mL, and adjust the volume of the reaction materials in the inner tank of the reactor with deionized water to ...
Embodiment 3
[0029] 1) According to the chemical formula BiCo of the cobalt-doped bismuth ferrite to be synthesized x Fe 1-x o 3 , x=0.07, measure and weigh bismuth nitrate, iron nitrate and cobalt nitrate, be dissolved in dilute nitric acid aqueous solution together, form the aqueous solution that contains bismuth nitrate, iron nitrate and cobalt nitrate, and the concentration of metal ion in the adjustment solution is 0.40mol / L ;
[0030] 2) Under stirring, add excess potassium hydroxide aqueous solution to the aqueous solution containing bismuth nitrate, iron nitrate and cobalt nitrate prepared in step 1), filter and wash the precipitate obtained to obtain the oxyhydroxide of bismuth, iron and cobalt precipitation;
[0031] 3) Add the oxyhydroxide precipitation of bismuth, iron and cobalt and potassium hydroxide into the inner tank of the reactor with an inner tank volume of 60mL, and adjust the volume of the reaction materials in the inner tank of the reactor with deionized water to...
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Application Information
- IPC
- H01F1/10; C04B35/26
- Inventors
- 韩高荣; 王永刚