Preparation method of multi-morphologynano-sized zinc ferrite
A technology of nano-zinc ferrite and morphology, which is applied in the direction of nanotechnology, chemical instruments and methods, iron compounds, etc., can solve the problems of limiting industrial application and production efficiency, inconvenient operation, and inability to effectively control the change of morphology, etc., to achieve Wide application market and prospect, increase production efficiency and reduce production cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] Weigh 2.2g of zinc acetate dihydrate, 8.08g of ferric nitrate nonahydrate and 13g of polyvinyl alcohol (model 1750±50, Sinopharm Chemical Reagent Co., Ltd.), add them to 105ml of deionized water, stir well, and obtain a mixed solution;
[0031] The mixed solution was electrostatically sprayed to obtain a precursor with a spherical shape, wherein the electrostatic voltage was 10 kV, and the spraying distance was 8 cm;
[0032] The precursor with spherical shape was heated up to 350°C at a pre-calcination rate of 5°C / min and kept for 2 hours, and then heated to 1000°C at a rate of 5°C / min for calcination and kept for 1 hour, then naturally cooled to obtain material 1 .
[0033] Adopt X-ray diffraction analyzer (XRD, Model X'TRAX) to carry out phase composition analysis, the result is as follows figure 1 As shown, it can be seen that material 1 is pure phase zinc ferrite (ZnFe 2 o 4 ). A cold field emission scanning electron microscope (FESEM, S-4800) was use...
Embodiment 2
[0035] Weigh 1.36g of zinc chloride, 7.06g of iron acetylacetonate and 18g of polyvinylpyrrolidone K-30 (Sinopharm Chemical Reagent Co., Ltd.) into 100ml of ethanol solution, stir well to obtain a mixed solution;
[0036] The mixed solution was electrostatically sprayed to obtain a precursor with a fibrous shape, wherein the electrostatic voltage was 15 kV, and the spraying distance was 13 cm;
[0037] The precursor of the fibrous morphology was raised to 500°C at a pre-calcination heating rate of 1°C / min and kept for 4 hours, and then heated to 700°C at a calcination heating rate of 1°C / min and kept for 5 hours, and naturally cooled to obtain the material 2 4 .
[0038] Adopt X-ray diffraction analyzer (XRD, Model X'TRAX) to carry out phase composition analysis, the result is as follows image 3 As shown, it can be seen that material 2 is pure phase zinc ferrite (ZnFe 2 o 4 ). A cold field emission scanning electron microscope (FESEM, S-4800) was used to test t...
Embodiment 3
[0040] Weigh 2.2 g of zinc acetate dihydrate, 5.41 g of ferric chloride hexahydrate and 10 g of polyethylene oxide (molecular weight 1,000,000, Shanghai Liansheng Chemical Co., Ltd.), add them to 35 ml of N,N-dimethylformamide solution, stir well, get a mixed solution;
[0041] The mixed solution was electrostatically sprayed to obtain a precursor with a bead-shaped morphology, wherein the electrostatic voltage was 20 kV, and the spraying distance was 20 cm;
[0042] The rod-shaped precursor was heated up to 400°C at a pre-calcination rate of 3°C / min and kept for 3 hours, and then heated to 900°C at a calcination rate of 3°C / min and kept for 3 hours, and cooled naturally to obtain material 3 .
[0043] Adopt X-ray diffraction analyzer (XRD, Model X'TRAX) to carry out phase composition analysis, the result is as follows Figure 5 As shown, it can be seen that material 3 is pure phase zinc ferrite (ZnFe 2 o 4 ). A cold field emission scanning electron microscope (FES...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More