CN102219490A - Spinel type multiferroics and synthesizing method thereof - Google Patents
Spinel type multiferroics and synthesizing method thereof Download PDFInfo
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- CN102219490A CN102219490A CN201110171338XA CN201110171338A CN102219490A CN 102219490 A CN102219490 A CN 102219490A CN 201110171338X A CN201110171338X A CN 201110171338XA CN 201110171338 A CN201110171338 A CN 201110171338A CN 102219490 A CN102219490 A CN 102219490A
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Abstract
The invention relates to spinel type multiferroics and a synthesizing method thereof, belonging to the field of multiferroics and preparation of the multiferroics. The general formula is MxZn1-xFe2O4, ZnMxFe2-xO4 or ZnMxM'yFe2-x-yO4. Soluble metal ion salt reacts in the mixed system of alkali metal salt, surfactant and organic polar solvent to obtain the spinel type multiferroics. The spinel type multiferroics can present multi-ferrum performance at normal temperature, is relatively rare single-phase multiferroics, and has wide application prospect in the technical fields of transducers, sensors, information memories and the like. The method is simple and convenient and safe, the raw materials are cheap and easy to obtain, the technical repeatability is good, the productivity is high, the cost is low, the applicability is wide, no toxic or polluting substances are produced, and the product is solid powder and has stable property, thus being convenient for industrial production.
Description
Technical field
The invention belongs to multi-ferroic material and preparation field thereof, particularly single-phase magnetoelectric material of a class and preparation method thereof is specifically related to a class and at room temperature can shows spinel type materials of multi-ferrum property and preparation method thereof.
Background technology
Ferroic material (as ferroelectric, ferromagnetic material) is the very important advanced function material of a big class, is widely used in electron devices such as transverter, transmitter, sensor, occupies an leading position in high-tech sectors such as sensing, driving, storage and intelligence systems.In the modern production life of device miniatureization, the diversification of demand, need to possess multiple materials with function simultaneously more and more urgently, multi-ferroic material is exactly quasi-representative representative wherein.
The same fundamental property that comprises two kinds and two or more iron in mutually that multi-ferroic material is meant material, the fundamental property of these iron comprises ferroelectricity (anti-ferroelectricity), ferromegnetism (antiferromagnetism, ferrimagnetism) and ferroelasticity.This class material exists spontaneous polarization preface and spin preface at a certain temperature simultaneously, just they the time exist the magneto-electric coupled effect cause to make many ferroics have some special physical properties, caused some new, significant physical phenomenons, as: under the effect in magnetic field, produce electropolarization or induce ferroelectric phase transition; Under electric field action, produce magnetic field or induce ferroelectric phase transition; Near Curie temperature ferromagnetic phase transition point, produce the sudden change of specific inductivity etc.Multi-ferroic material has become a current focus of research in the world.
Multi-ferroic material can be divided into compound magnetoelectric material and single-phase magnetoelectric material.Compound multi-ferroic material is a kind of Multifunction material, ferroelectric phase and ferromagnetic phase material are compounded to form through certain method, not only have the former piezoelectric effect and the latter's magnetostrictive effect, and can also produce new magnetoelectricity transition effects, this effect is ferroelectric phase and ferromagnetic product effect mutually.Single-phase multi-ferroic material is meant and shows ferroelectricity and ferromagnetic single-phase compound simultaneously, this multi-ferroic material not only has ferroelectricity and ferromegnetism, and have magneto-electric coupled effect between ferroelectricity and the ferromegnetism, thereby may realize ferroelectricity and ferromagnetic mutual regulation and control.The single-phase magnetoelectric material that wherein at room temperature can show ferroelectric properties is rarer, the BiFeO of perovskite typed
3Be wherein a kind of.Therefore seek new single-phase magnetoelectric material and be fit to industrial preparation method and need to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide new multi-ferroic material of a class and synthetic method thereof, to satisfy the constantly requirement of development of information technology.This method is utilized raw material cheap and easy to get, adopts solvent-thermal method, high yield synthesizing series multi-ferroic material.The synthetic route of this method is simple, be easy to amplify, cost is low, resulting multi-ferroic material just can show multi-ferrum property at normal temperatures, be a rarer class single phase multi-iron material,, possess wide application prospect in technical fields such as transverter, transmitter, message memorys.
The general formula of spinel type multi-ferroic material provided by the present invention is:
M
xZn
1-xFe
2O
4, wherein M is a kind of in beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, iron, the cobalt ion, x=0.02,0.05,0.1,0.15,0.2---1;
M
xM '
yZn
1-x-yFe
2O
4, M is a kind of in beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, iron, the cobalt ion, x=0.02,0.05,0.1,0.15,0.2---1, M ' is a kind of in beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, iron, the cobalt ion, y=0.02,0.05, and 0.1,0.15,0.2---1; X+y≤1;
ZnM
xFe
2-xO
4, M is a kind of in aluminium, gallium, indium, antimony, bismuth, titanium, the chromium ion, x=0.02,0.05,0.1,0.15,0.2---1;
ZnM
xM '
yFe
2-x-yO
4, M is a kind of in aluminium, gallium, indium, antimony, bismuth, titanium, the chromium ion, M ' is a kind of in aluminium, gallium, indium, antimony, bismuth, titanium, the chromium ion etc., x=0.02,0.05,0.1,0.15,0.2---1; Y=0.02,0.05,0.1,0.15,0.2---1; X+y≤1.
M
xZn
1-xM '
yFe
2-yO
4, wherein M is a kind of in beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, iron, the cobalt ion, x=0.02,0.05,0.1,0.15,0.2---1 M ' is a kind of in aluminium, gallium, indium, antimony, bismuth, titanium, the chromium ion etc., x=1.0,1.05----1.7,1.75,1.8,1.85,1.9,1.95,2; Y=0.02,0.05,0.1,0.15,0.2---1; X+y≤3;
The method of synthetic spinel type multi-ferroic material provided by the present invention, carry out according to following step:
Earlier metal-salt is joined in the organic polar solvent, behind the mixed dissolution, add solid alkali metal salt and tensio-active agent again, the back that stirs obtains the method for described spinel type multi-ferroic material 160 ℃-260 ℃ reactions down.
The mass ratio of wherein said tensio-active agent and organic polar solvent is 0.02-0.2:; The concentration of metal ion is 0.025-0.45mol/L, and the mol ratio of an alkali metal salt and metal ion is 2-10:1.
Wherein said metal-salt is two kinds or several above soluble salt in iron, beryllium, magnesium, calcium, strontium, barium, germanium, tin, lead, zinc, cadmium, manganese, cobalt, aluminium, gallium, indium, antimony, bismuth, titanium, vanadium and the chromium ion etc., as nitrate, hydrochloride, vitriol or acetate.
Wherein said an alkali metal salt is sodium-acetate, Potassium ethanoate, Trisodium Citrate, Tripotassium Citrate, sodium tartrate, soluble tartrate, sodium oleate, potassium oleate, sodium stearate, potassium stearate, sodium lauryl sulphate, dodecyl sulphate potassium etc.
Wherein said organic solvent is methyl alcohol, ethanol, propyl alcohol, ethylene glycol, Diethylene Glycol, triethylene glycol, TEG, propylene glycol or glycerol etc.
Wherein said tensio-active agent is sapn (Span) series, as Span20, Span40, Span60, Span65, Span80, Span85 etc.; Polyoxyethylene glycol series is as cetomacrogol 1000, polyethylene glycol 6000, cetomacrogol 1000 0, Macrogol 2000 0 etc.; Tween series is as polysorbas20 (TWEEN-20), tween 21 (TWEEN-21), polysorbate40 (TWEEN-40), polysorbate60 (TWEEN-60), tween 61 (TWEEN-61), tween 80 (TWEEN-80), sorbimacrogol oleate100 (TWEEN-81), polysorbate85 (TWEEN-85) etc.; Polyoxyethylene-type series (molecular weight is between 1000-20000) is as fatty alcohol-polyoxyethylene ether, polyoxyethylene alkylphenol ether, polyoxyethylene carboxylate, polyoxy olefin block copolymers etc.
The present invention is system with the organic polar solvent, is raw material with soluble metallic salt and an alkali metal salt, prepares multi-ferroic material.The inventive method is easy, safety, cost is low, suitability is wide, and reaction raw materials is nontoxic and be easy to get, and product is pressed powder and stable in properties, is convenient to industrial production.The multi-ferroic material that is obtained just can show multi-ferrum property at normal temperatures, is a rarer class single phase multi-iron material, in technical fields such as transverter, transmitter, message memorys, possesses wide application prospect.
Description of drawings
Fig. 1: Cd
0.7Zn
0.3Fe
2O
4The powder X-ray RD diffraction spectrogram of sample.
Fig. 2: Cd
0.7Zn
0.3Fe
2O
4The scanning electron microscope of sample.
Fig. 3: Cd
0.7Zn
0.3Fe
2O
4The ferroelectric analysis chart of sample under the different voltages of 500Hz
Fig. 4: Cd
0.7Zn
0.3Fe
2O
4The magnetic hysteresis loop of sample.
Fig. 5: Pb
0.4Zn
0.6Fe
2O
4The powder X-ray RD diffraction spectrogram of sample.
Fig. 6: Pb
0.2Zn
0.8Fe
2O
4Sample is at 3000V, the ferroelectric analysis chart under the 500Hz.
Fig. 7: ZnAl
0.25Fe
1.75O
4The powder X-ray RD diffraction spectrogram of sample.
Fig. 8: ZnAl
0.25Fe
1.75O
4The scanning electron microscope of sample.
Fig. 9: ZnAl
0.25Fe
1.75O
4Sample is at 3000V, the ferroelectric analysis chart under the 100Hz.
Embodiment
The present invention will be further elaborated below in conjunction with embodiment.
Below for adopting the synthetic multi-ferroic material M of the inventive method
xZn
1-xFe
2O
4(a kind of in M=beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, the cobalt ion etc., x=0.02,0.05,0.1,0.15, example 0.2---1).
Embodiment 1:
With 0.675gFeCl
3.6H2O be dissolved in fully among the 20ml EG, add the 1.8g sodium-acetate, 0.017g ZnCl
2, 0.2569g CdCl
2(mol ratio Zn
2+: Cd
2+=0.1:0.9), add 0.5g cetomacrogol 1000 0, stir 30min, put into autoclave, 200 ℃ down reaction 6h. gained black product by carrying out precipitate and separate under centrifugation or the external magnetic field, after use deionized water and absolute ethanol washing respectively 3 times, thereby some ions on surface, unnecessary polymkeric substance and other impurity are removed, and, promptly obtain the adulterated spinel type Compound C d of Cd with multi-ferrum property with resulting solid dry 6h under 60 ℃
0.9Zn
0.1Fe
2O
4
Embodiment 2:
Experimental technique is with embodiment 1, and reaction ratio difference just changes the quality of zinc chloride into 0.034g, and the quality of Cadmium chloride fine powder changes 0.2283g into, promptly obtains the adulterated spinel type Compound C d with multi-ferrum property of Cd
0.8Zn
0.2Fe
2O
4
Embodiment 3:
Experimental technique is with embodiment 1, and reaction ratio difference just changes the quality of zinc chloride into 0.0511g, and the quality of Cadmium chloride fine powder changes 0.1998g into, promptly obtains the adulterated spinel type Compound C d with multi-ferrum property of Cd
0.7Zn
0.3Fe
2O
4(the powder X-ray RD diffraction spectrogram of sample is seen Fig. 1, and sem photograph is seen Fig. 2, and ferroelectric analysis chart is seen Fig. 3, and magnetic hysteresis loop is seen Fig. 4, interpret sample Cd
0.7Zn
0.3Fe
2O
4Be the compound with spinel type, the particle outward appearance is spherical in shape, and has ferroelectricity and magnetic property).
Embodiment 4:
Experimental technique is with embodiment 1, and reaction ratio difference just changes the quality of zinc chloride into 0.0681g, and the quality of Cadmium chloride fine powder changes 0.1713g into, promptly obtains the adulterated spinel type Compound C d with multi-ferrum property of Cd
0.6Zn
0.4Fe
2O
4
Embodiment 5:
Experimental technique is with embodiment 1, and reaction ratio difference just changes the quality of zinc chloride into 0.0852g, and the quality of Cadmium chloride fine powder changes 0.1427g into, promptly obtains the adulterated spinel type Compound C d with multi-ferrum property of Cd
0.5Zn
0.5Fe
2O
4
Embodiment 6:
Experimental technique is with embodiment 1, and reaction ratio difference just changes the quality of zinc chloride into 0.1022g, and the quality of Cadmium chloride fine powder changes 0.1142g into, promptly obtains the adulterated spinel type Compound C d with multi-ferrum property of Cd
0.4Zn
0.6Fe
2O
4
Embodiment 7:
Experimental technique is with embodiment 1, and reaction ratio difference just changes the quality of zinc chloride into 0.1193g, and the quality of Cadmium chloride fine powder changes 0.0856g into, promptly obtains the adulterated spinel type Compound C d with multi-ferrum property of Cd
0.3Zn
0.7Fe
2O
4
Embodiment 8:
Experimental technique is with embodiment 1, and reaction ratio difference just changes the quality of zinc chloride into 0.1363g, and the quality of Cadmium chloride fine powder changes 0.0571g into, promptly obtains the adulterated spinel type Compound C d with multi-ferrum property of Cd
0.2Zn
0.8Fe
2O
4
Embodiment 9:
Experimental technique is with embodiment 1, and reaction ratio difference just changes the quality of zinc chloride into 0.1533g, and the quality of Cadmium chloride fine powder changes 0.0285g into, promptly obtains the adulterated spinel type Compound C d with multi-ferrum property of Cd
0.1Zn
0.9Fe
2O
4
Embodiment 10:
With 0.675gFeCl
3.6H
2O is dissolved among the 20ml EG fully, adds 1.8gNaAc and 0.17g ZnCl
2The back adds 0.5g cetomacrogol 1000 0, stir 30min, put into autoclave, 200 ℃ are reacted 6h. gained black product down by after carrying out precipitate and separate under centrifugation or the external magnetic field, use deionized water and absolute ethanol washing 3 times respectively, thereby some ions on surface, unnecessary polymkeric substance and other impurity are removed, and, promptly obtain spinel type compound ZnFe with resulting solid dry 6h under 60 ℃
2O
4Microballoon.
Embodiment 11:
With 0.675gFeCl
3.6H2O be dissolved in fully among the 20ml EG, add the 1.8g sodium-acetate, 0.017g ZnCl
2, 0.3129g PbCl
2(mol ratio Zn
2+: Pb
2+=0.1:0.9), add 0.5g cetomacrogol 1000 0, stir 30min, put into autoclave, 200C down reaction 6h. gained black product by carrying out precipitate and separate under centrifugation or the external magnetic field, after use deionized water and absolute ethanol washing respectively 3 times, thereby some ions on surface, unnecessary polymkeric substance and other impurity are removed, and, promptly obtain the adulterated spinel type compound Pb of Pb with multi-ferrum property with resulting solid dry 6h under 60 ℃
0.9Zn
0.1Fe
2O
4
Embodiment 12:
Experimental technique is with embodiment 10, and reaction ratio difference just changes the quality of zinc chloride into 0.034g, and the quality of lead chloride changes 0.2781g into, promptly obtains the adulterated spinel type compound Pb with multi-ferrum property of Pb
0.8Zn
0.2Fe
2O
4
Embodiment 13:
Experimental technique is with embodiment 10, and reaction ratio difference just changes the quality of zinc chloride into 0.0511g, and the quality of lead chloride changes 0.2433g into, promptly obtains the adulterated spinel type compound Pb with multi-ferrum property of Pb
0.7Zn
0.3Fe
2O
4
Embodiment 14:
Experimental technique is with embodiment 10, and reaction ratio difference just changes the quality of zinc chloride into 0.0681g, and the quality of lead chloride changes 0.2086g into, promptly obtains the adulterated spinel type compound Pb with multi-ferrum property of Pb
0.6Zn
0.4Fe
2O
4
Embodiment 15:
Experimental technique is with embodiment 10, and reaction ratio difference just changes the quality of zinc chloride into 0.0852g, and the quality of lead chloride changes 0.1738g into, promptly obtains the adulterated spinel type compound Pb with multi-ferrum property of Pb
0.5Zn
0.5Fe
2O
4
Embodiment 16:
Experimental technique is with embodiment 10, and reaction ratio difference just changes the quality of zinc chloride into 0.1022g, and the quality of lead chloride changes 0.1391g into, promptly obtains the adulterated spinel type compound Pb with multi-ferrum property of Pb
0.4Zn
0.6Fe
2O
4(the powder X-ray RD diffraction spectrogram of sample is seen Fig. 5, interpret sample Pb
0.4Zn
0.6Fe
2O
4Be compound) with spinel structure.
Embodiment 17:
Experimental technique is with embodiment 10, and reaction ratio difference just changes the quality of zinc chloride into 0.1193g, and the quality of lead chloride changes 0.1043g into, promptly obtains the adulterated spinel type compound Pb with multi-ferrum property of Pb
0.3Zn
0.7Fe
2O
4
Embodiment 18:
Experimental technique is with embodiment 10, and reaction ratio difference just changes the quality of zinc chloride into 0.1363g, and the quality of lead chloride changes 0.0695g into, promptly obtains the adulterated spinel type compound Pb with multi-ferrum property of Pb
0.2Zn
0.8Fe
2O
4(the ferroelectric analysis chart of sample is seen Fig. 6, interpret sample Pb
0.2Zn
0.8Fe
2O
4Has ferroelectric properties).
Embodiment 19:
Experimental technique is with embodiment 10, and reaction ratio difference just changes the quality of zinc chloride into 0.1533g, and the quality of lead chloride changes 0.0348g into, promptly obtains the adulterated spinel type compound Pb with multi-ferrum property of Pb
0.1Zn
0.9Fe
2O
4
Below for adopting the synthetic multi-ferroic material ZnM of the inventive method
xFe
2-xO
4(in M=aluminium, gallium, indium, antimony, bismuth, the chromium ion a kind of, x=1.0,1.05----1.7,1.75,1.8,1.85,1.9,1.95,2).Example.
Embodiment 20:
With 0.6588gFeCl
3.6H2O be dissolved in fully among the 20ml EG, add the 1.8g sodium-acetate, 0.17g ZnCl
2, 0.0083g AlCl
3(mol ratio Fe
3+: Al
3+=1.95:0.05), add 0.5g cetomacrogol 1000 0, stir 30min, put into autoclave, 200C down reaction 6h. gained black product by carrying out precipitate and separate under centrifugation or the external magnetic field, after use deionized water and absolute ethanol washing respectively 3 times, thereby some ions on surface, unnecessary polymkeric substance and other impurity are removed, and, promptly obtain the adulterated spinel type compound ZnAl of Al with multi-ferrum property with resulting solid dry 6h under 60 ℃
0.05Fe
1.95O
4
Embodiment 21:
Experimental technique is with embodiment 19, and reaction ratio difference just changes the quality of iron(ic) chloride into 0.6420g, and the quality of aluminum chloride changes 0.0167g into, promptly obtains the adulterated spinel type compound ZnAl with multi-ferrum property of Al
0.1Fe
1.9O
4
Embodiment 22:
Experimental technique is with embodiment 19, and reaction ratio difference just changes the quality of iron(ic) chloride into 0.6250g, and the quality of aluminum chloride changes 0.0250g into, promptly obtains the adulterated spinel type compound ZnAl with multi-ferrum property of Al
0.15Fe
1.85O
4
Embodiment 23:
Experimental technique is with embodiment 19, and reaction ratio difference just changes the quality of iron(ic) chloride into 0.6080g, and the quality of aluminum chloride changes 0.033g into, promptly obtains the adulterated spinel type compound ZnAl with multi-ferrum property of Al
0.2Fe
1.8O
4
Embodiment 24:
Experimental technique is with embodiment 19, and reaction ratio difference just changes the quality of iron(ic) chloride into 0.5913g, and the quality of aluminum chloride changes 0.0417g into, promptly obtains the adulterated spinel type compound ZnAl with multi-ferrum property of Al
0.25Fe
1.75O
4(the powder X-ray RD diffraction spectrogram of sample is seen Fig. 7, and sem photograph is seen Fig. 8, and ferroelectric analysis chart is seen Fig. 9, interpret sample ZnAl
0.25Fe
1.75O
4Be the compound with spinel type, the particle outward appearance is irregularly shaped, and has ferroelectric properties).
Embodiment 25:
Experimental technique is with embodiment 19, and reaction ratio difference just changes the quality of iron(ic) chloride into 0.5740g, and the quality of aluminum chloride changes 0.0500g into, promptly obtains the adulterated spinel type compound ZnAl with multi-ferrum property of Al
0.3Fe
1.7O
4
Claims (9)
1. spinel type multi-ferroic material is characterized in that it forms general formula and be:
M
xZn
1-xFe
2O
4, wherein M is a kind of in beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, iron, the cobalt ion, x=0.02,0.05,0.1,0.15,0.2---1;
M
xM '
yZn
1-x-yFe
2O
4, M is a kind of in beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, iron, the cobalt ion, x=0.02,0.05,0.1,0.15,0.2---1, M ' is a kind of in beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, iron, the cobalt ion, y=0.02,0.05, and 0.1,0.15,0.2---1; X+y≤1;
ZnM
xFe
2-xO
4, M is a kind of in aluminium, gallium, indium, antimony, bismuth, titanium, the chromium ion, x=0.02,0.05,0.1,0.15,0.2---1;
ZnM
xM '
yFe
2-x-yO
4, M is a kind of in aluminium, gallium, indium, antimony, bismuth, titanium, the chromium ion, M ' is a kind of in aluminium, gallium, indium, antimony, bismuth, titanium, the chromium ion etc., x=0.02,0.05,0.1,0.15,0.2---1; Y=0.02,0.05,0.1,0.15,0.2---1; X+y≤1.
2.M
xZn
1-xM '
yFe
2-yO
4, wherein M is a kind of in beryllium, magnesium, calcium, strontium, barium, tin, lead, cadmium, manganese, iron, the cobalt ion, x=0.02,0.05,0.1,0.15,0.2---1 M ' is a kind of in aluminium, gallium, indium, antimony, bismuth, titanium, the chromium ion etc., x=1.0,1.05----1.7,1.75,1.8,1.85,1.9,1.95,2; Y=0.02,0.05,0.1,0.15,0.2---1; X+y≤3;
The synthetic method of the described spinel type multi-ferroic material of claim 1 is characterized in that carrying out according to following step:
Earlier metal-salt is joined in the organic polar solvent, behind the mixed dissolution, add solid alkali metal salt and tensio-active agent again, the back that stirs obtains the method for described spinel type multi-ferroic material 160 ℃-260 ℃ reactions down.
3. the synthetic method of spinel type multi-ferroic material according to claim 2, the mass ratio that it is characterized in that wherein said tensio-active agent and organic polar solvent is 0.02-0.2; The concentration of metal ion is 0.025-0.45mol/L, and the mol ratio of an alkali metal salt and metal ion is 2-10:1.
4. the synthetic method of spinel type multi-ferroic material according to claim 2 is characterized in that wherein said metal-salt is two kinds or several above soluble salt in iron, beryllium, magnesium, calcium, strontium, barium, germanium, tin, lead, zinc, cadmium, manganese, cobalt, aluminium, gallium, indium, antimony, bismuth, titanium, vanadium and the chromium ion.
5. the synthetic method of spinel type multi-ferroic material according to claim 4 is characterized in that wherein said soluble salt is nitrate, hydrochloride, vitriol or acetate.
6. the synthetic method of spinel type multi-ferroic material according to claim 2 is characterized in that wherein said an alkali metal salt is sodium-acetate, Potassium ethanoate, Trisodium Citrate, Tripotassium Citrate, sodium tartrate, soluble tartrate, sodium oleate, potassium oleate, sodium stearate, potassium stearate, sodium lauryl sulphate or dodecyl sulphate potassium.
7. the synthetic method of spinel type multi-ferroic material according to claim 2 is characterized in that wherein said organic solvent is methyl alcohol, ethanol, propyl alcohol, ethylene glycol, Diethylene Glycol, triethylene glycol, TEG, propylene glycol or glycerol.
8. the synthetic method of spinel type multi-ferroic material according to claim 2, it is characterized in that wherein said tensio-active agent is sapn (Span) series, polyoxyethylene glycol series, tween series, the polyoxyethylene-type series of molecular weight between 1000-20000.
9. the synthetic method of spinel type multi-ferroic material according to claim 8 is characterized in that wherein said tensio-active agent is Span20, Span40, Span60, Span65, Span80, Span85; Cetomacrogol 1000, polyethylene glycol 6000, cetomacrogol 1000 0, Macrogol 2000 0, polysorbas20 (TWEEN-20), tween 21, polysorbate40, polysorbate60, tween 61, tween 80, sorbimacrogol oleate100, polysorbate85; Fatty alcohol-polyoxyethylene ether, polyoxyethylene alkylphenol ether, polyoxyethylene carboxylate, polyoxy olefin block copolymers.
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| CN105016396A (en) * | 2015-07-20 | 2015-11-04 | 重庆科技学院 | Multiferroic liquid and preparation method thereof |
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| CN107304069A (en) * | 2016-04-18 | 2017-10-31 | 中国科学院上海硅酸盐研究所 | A kind of new multi-ferroic material and preparation method thereof |
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| CN103818971A (en) * | 2014-03-12 | 2014-05-28 | 厦门大学 | Preparation method for superparamagnetism ferrite nano particles |
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| CN104177076B (en) * | 2014-08-14 | 2016-04-13 | 华中科技大学 | A kind of Al 3+doping Bi 2fe 4o 9multiferroic stupalith and preparation method thereof |
| CN105541315B (en) * | 2014-09-30 | 2021-03-26 | 天工方案公司 | Z-type hexagonal ferrite material with enhanced resonant frequency improvement |
| CN105541315A (en) * | 2014-09-30 | 2016-05-04 | 天工方案公司 | Modified Z-type hexagonal ferrite materials with enhanced resonant frequency |
| CN105016396A (en) * | 2015-07-20 | 2015-11-04 | 重庆科技学院 | Multiferroic liquid and preparation method thereof |
| CN107304069A (en) * | 2016-04-18 | 2017-10-31 | 中国科学院上海硅酸盐研究所 | A kind of new multi-ferroic material and preparation method thereof |
| CN107304069B (en) * | 2016-04-18 | 2019-01-29 | 中国科学院上海硅酸盐研究所 | A kind of novel multi-ferroic material and preparation method thereof |
| CN107512738A (en) * | 2016-06-18 | 2017-12-26 | 合肥杰事杰新材料股份有限公司 | A kind of porous MnFe2O4 nano materials and preparation method thereof |
| CN107512738B (en) * | 2016-06-18 | 2021-09-03 | 合肥杰事杰新材料股份有限公司 | Porous MnFe2O4Nano material and preparation method thereof |
| CN109806876A (en) * | 2018-12-18 | 2019-05-28 | 浙江工业大学 | A kind of magnetism ZnFe2O4/ graphene nano composite photo-catalyst and the preparation method and application thereof |
| CN109806876B (en) * | 2018-12-18 | 2022-01-25 | 浙江工业大学 | Magnetic ZnFe2O4Graphene nano composite photocatalyst and preparation method and application thereof |
| CN116239155A (en) * | 2023-03-21 | 2023-06-09 | 清华大学 | Manganese ion doped ferrite nanoparticle, preparation method and application thereof |
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