A method for preparing manganese zinc ferrite nanoparticles
A technology of manganese-zinc ferrite and nano-particles, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., to achieve the effects of high saturation magnetization, suppression of component segregation, and high particle uniformity
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Examples
Embodiment 1
[0027] Step 1. According to MnZn ferrite (Mn 0.6 Zn 0.4 Fe 2 o 4 ) stoichiometric ratio of manganese nitrate (Mn(NO 3 ) 2 4H 2 O) 0.006mol, zinc nitrate (Zn(NO 3 ) 2 ·6H 2 O) 0.004mol, iron nitrate (Fe(NO 3 ) 3 9H 2 (0) 0.02mol, add 100ml deionized water to dissolve, stir at room temperature for 30 minutes to form a clear and transparent solution;
[0028] Step 2. Weigh 0.03 mol of ethylenediaminetetraacetic acid (EDTA) (the same amount of substance as the total molar amount of metal ions), add it to the above metal ion solution, stir and dissolve at 60-80°C (an appropriate amount of ammonia water can be added Accelerate its dissolving), form the sol that comprises EDTA metal ion chelate after 6~8 hours;
[0029] Step 3. Put the sol into a ventilated drying oven, heat and dehydrate at 100° C. for 5 to 6 hours to obtain a xerogel. Take out the dry gel and grind it thoroughly to obtain the precursor powder;
[0030] Step 4. Put the precursor powder into the muffle ...
Embodiment 2
[0033] Step 1. According to MnZn ferrite (Mn 0.6 Zn 0.4 Fe 2 o 4 ) stoichiometric ratio of manganese nitrate (Mn(NO 3 ) 2 4H 2O) 0.006mol, zinc nitrate (Zn(NO 3 ) 2 ·6H 2 O) 0.004mol, iron nitrate (Fe(NO 3 ) 3 9H 2 (0) 0.02mol, add 100ml deionized water to dissolve, stir at room temperature for 30 minutes to form a clear and transparent solution;
[0034] Step 2. Weigh 0.03 mol of ethylenediaminetetraacetic acid (EDTA) (the same amount of substance as the total molar amount of metal ions), add it to the above metal ion solution, stir and dissolve at 60-80°C (an appropriate amount of ammonia water can be added Accelerate its dissolving), form the sol that comprises EDTA metal ion chelate after 6~8 hours;
[0035] Step 3. Put the sol into a ventilated drying oven, heat and dehydrate at 100° C. for 5 to 6 hours to obtain a xerogel. Take out the dry gel and grind it thoroughly to obtain the precursor powder;
[0036] Step 4. Put the precursor powder into the muffle f...
Embodiment 3
[0039] Step 1. According to MnZn ferrite (Mn 0.6 Zn 0.4 Fe 2 o 4 ) stoichiometric ratio of manganese nitrate (Mn(NO 3 ) 2 4H 2 O) 0.006mol, zinc nitrate (Zn(NO 3 ) 2 ·6H 2 O) 0.004mol, iron nitrate (Fe(NO 3 ) 3 9H 2 (0) 0.02mol, add 100ml deionized water to dissolve, stir at room temperature for 30 minutes to form a clear and transparent solution;
[0040] Step 2. Weigh 0.03 mol of ethylenediaminetetraacetic acid (EDTA) (the same amount of substance as the total molar amount of metal ions), add it to the above metal ion solution, stir and dissolve at 60-80°C (an appropriate amount of ammonia water can be added Accelerate its dissolving), form the sol that comprises EDTA metal ion chelate after 6~8 hours;
[0041] Step 3. Put the sol into a ventilated drying oven, heat and dehydrate at 100° C. for 5 to 6 hours to obtain a xerogel. Take out the dry gel and grind it thoroughly to obtain the precursor powder;
[0042] Step 4. Put the precursor powder into the muffle ...
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Application Information
- IPC
- C01G49/00; B82Y30/00
- Inventors
- 成林; 卢江平