CN104551004A - Chemical preparation method of cobalt-iron alloy nanopowder - Google Patents
Chemical preparation method of cobalt-iron alloy nanopowder Download PDFInfo
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- CN104551004A CN104551004A CN201410842870.3A CN201410842870A CN104551004A CN 104551004 A CN104551004 A CN 104551004A CN 201410842870 A CN201410842870 A CN 201410842870A CN 104551004 A CN104551004 A CN 104551004A
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Abstract
The invention relates to chemical preparation of nanopowder materials, in particular to a chemical preparation method of cobalt-iron alloy nanopowder. The method includes: with hydrazine hydrate and potassium borohydride as reductant, using the hydrazine hydrate to reduce metallic cobalt and iron ions in specific solvent into light pink sticky cobalt-iron precursor; using potassium borohydride solution dissolved with the specific solvent, to reduce the light pink sticky cobalt-iron precursor into metallic cobalt and iron atoms, and allowing the atoms to re-gather and grow into cobalt-iron alloy nanoparticles. The method has the advantages the cobalt-iron alloy nanopowder can be prepared by the method, particle morphology is under control, the prepared cobalt-iron alloy nanoparticles are spherical with the particle size of 50 to 800 nm, evenly distributed, and conditions are created for the actual application of the cobalt-iron alloy nanopowder.
Description
Technical field
The present invention relates to chemical method and prepare nano-powder material, particularly relate to the preparation of nanometer ferro-cobalt (CoFe) alloy powder.
Background technology
Nano material, because of the physics and chemistry character of the uniqueness such as small-size effect, skin effect, has a wide range of applications in fields such as energy and material, ecological environment material nd, functional coating material, high-performance electronic materials.CoFe alloy is a kind of metal soft magnetic material, is widely used in the function element manufactures such as magnetic recording, sensor, ferrofluid.Meanwhile, the magnetic property of ferro-cobalt nano-alloy powder, catalytic performance and Microwave Absorption Properties etc. with particle chemical composition and grain size difference and change.Select certain preparation method, diameter of particle and the controlled alloy powder of chemical composition can be obtained, and then the magnetic of adjustment and design alloy powder, catalytic performance and Microwave Absorption Properties, there is very important meaning for ferro-cobalt nano-alloy powder at the application and development in the fields such as thermotherapy, catalysis material and microwave absorbing material.
Liquid phase reduction prepares nano material, is to select suitable dissolution with solvents slaine, and adds a certain amount of reducing agent, and slaine is reduced in liquid phase solvent, and through nucleation and growth two processes, finally forms nano material.Appropriate surfactant is added during Liquid preparation methods nano particle, the surfactant being adsorbed on particle surface can the organic coating layer of formative dynamics, slow down collision and the reunion of particle, strengthen the stability of particle, make nano particle keep stable monodisperse status and control its growth.
According to " Powder Technology " 28(2011) 623-627 report, prepare Fe-Co nano particle by the method for the reaction of self-propagating high-temperature in the process of ball milling, first the first stage loads cobalt chloride, iron chloride and a certain amount of sodium salt ion with 8000M steel ball and be connected with in the high energy ball mill of protective gas argon gas carries out ball milling; Second stage will add different bright sodium chloride in presoma good for first stage ball milling, carry out ball milling and probe into the impact of sodium chloride on iron cobalt nano-particle pattern and magnetic property.The method can prepare the iron cobalt Nanoalloy powder of different proportion, and productive rate is also high, but the nano particle shape prepared is even not, is difficult to prepare spherical nanoparticle.
Report according to " Journal of Applied Physics " 111,07B533 (2012), with Fe (CO)
5and Co
2(CO)
8for presoma, prepare CoFe alloy nanoparticle by the method for thermal decomposition, concrete steps are solvent with oleamide, and be heated to 160 ° of C, by Co
2(CO)
8, Fe (CO)
5be dissolved in back flow reaction in oleamide after mixing with a certain amount of kerosene and within one hour, prepare Fe – Co nano particle.In order to improve the saturation magnetization energy of Fe – Co nano particle, the Fe – Co nano powder prepared is carried out process annealing in a vacuum furnace.The method can prepare the Fe – Co nano powder of higher saturation magnetization energy, but the domain size distribution of Fe – Co nano powder is uneven, and equipment fraud valency is high.
Report according to " Materials Research Bulletin " 48 (2013) 3157 – 3163, prepare CoFe alloy nanoparticle in the method being thermal decomposition in solvent with 1-18 (carbon) alkene and oleic acid, first utilize Iron trichloride hexahydrate (FeC
l36H
2o) and enuatrol preparation tap a blast furnace and the complex compound of oleic acid, complex compound through being separated, cleaning, after vacuum drying treatment, by iron oleate (Fe (C
18h
33o
2)
3) and CoCL2 6H2O (CoC
l26H
2o) be that solvent heats the regular hour at 120 ° of C and 317 ° C respectively under the condition of logical nitrogen with a certain amount of 1-18 (carbon) alkene and oleic acid, thus obtained CoFe alloy nanoparticle.This method can the CoFe alloy nanoparticle of different mol ratio of a step, but experimentation is complicated, and the reaction time is long, limits its suitability for industrialized production.
According to " Vacuum " 101(2014) 371-376 report; plasma sputtering legal system is for Fe – Co nano powder; first with oxidized silicon for matrix; pass into protective gas argon gas in a vacuum furnace; and pressurize, it is the film of 4nm to 10nm that a certain proportion of iron and cobalt powder body are formed thickness in matrix sputtering precipitation.Carrying out pretreatment under the environment of 700 ° of C that now Fe – Co film exists at ask the visitor in plasma, is that film forming core grows up into nanometer Fe – Co alloy particle.But the techniques such as the region supersaturation ratio that tiny nucleus is formed, air pressure, gaseous species and cooling condition are the principal elements affecting nanometer performance, and equipment requirement is higher.
Report according to Yu Hongying, identical apply for a patent " a kind of chemical preparation process of cobalt nickel nano-alloy powder " of Lu ten thousand, using the one in hydrazine hydrate or sodium borohydride as reducing agent, the salting liquid of reduction cobalt nickel, prepare in spherical, particle diameter is 50 ~ 700nm, the cobalt nickel hybrid alloys powder be evenly distributed.This invented technology is easy, low raw-material cost, and can realize economic preparation in macroscopic quantity, but being only difficult to reduction by the one in hydrazine hydrate or sodium borohydride as reducing agent prepares ferro-cobalt (CoFe) alloy powder.Prepare ferro-cobalt (CoFe) alloy powder to need to find suitable reducing agent, and adjust reducing agent addition and sequentially successfully could prepare ferro-cobalt (CoFe) alloy powder, and control ferrocobalt powder pattern and particle diameter.
Summary of the invention
The object of the present invention is to provide a kind of method adopting liquid-phase reduction to prepare ferro-cobalt Nanoalloy, using hydrazine hydrate, potassium borohydride jointly as reducing agent, metallic cobalt, iron ion in specific solvent are first reduced into the thick ferro-cobalt precursor of lightpink with hydrazine hydrate by the first step, ferro-cobalt precursor thick for lightpink is reduced to metallic cobalt, iron atom by the solution of potassium borohydride that second step specific solvent dissolves, and metallic atom reassociates, final acquisition ferro-cobalt Nanoalloy particle of growing up.This technique can not only prepare the cobalt Nanoalloy powder that taps a blast furnace, and can realize the control of granule-morphology, for the practical application of ferro-cobalt nano-alloy powder provides condition.
Implementation process of the present invention is as follows:
The preparation of step 1. reaction solution:
1.1) preparing metal salting liquid: with ethylene glycol, deionized water for solvent, by metal salt solution 0.01 ~ 3.00 mol/L, surfactant 0.10 ~ 25.00 g/L proportions; Temperature is between 20 ~ 30 DEG C, and stir 20 ~ 30 minutes, wherein in metal salt solution, the stoichiometric proportion of Co/Fe is between 0.10 ~ 16.00;
1.2) reductant solution is prepared 1.: with ethylene glycol, deionized water for solvent, potassium hydroxide 0.20 ~ 6.00mol/L dissolves, and adds hydrazine hydrate 2.00 ~ 32.00 mL, and temperature is between 20 ~ 30 DEG C, stirs 20 ~ 30 minutes;
1.3) prepare reductant solution 2.: with ethylene glycol, deionized water for solvent, potassium hydroxide dissolves, and adds potassium borohydride or sodium borohydride; Temperature is between 20 ~ 30 DEG C, stirs 20 ~ 30 minutes; Potassium hydroxide addition is 0.20 ~ 6.00mol/L; Potassium borohydride or sodium borohydride addition are 0.67g ~ 5.40g/L.
The preparation of step 2. nanometer cobalt iron alloy powder:
1., 2. metal salt solution step 1 prepared and reductant solution distinguish heating water bath to 60 ~ 100 DEG C, then first 1. join in the metal salt solution of metallic cobalt, iron ion with reductant solution, react 20 ~ 30 minutes, until metallic cobalt, iron ion are reduced into the thick ferro-cobalt precursor of lightpink; 2. join in the thick ferro-cobalt precursor of lightpink with reductant solution again, react 20 ~ 30 minutes, until react complete, then centrifugation solution and ferro-cobalt nano-alloy powder, use deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 2 ~ 3 times more successively, collect after dry.
Slaine used is CoCl
2/ FeCl
2, CoSO
4/ FeSO
4or Co (NO
3)
2/ Fe (NO
3)
3among any one.
Described surfactant is any one among polyvinylpyrrolidone (PVP K30), polyvinylpyrrolidone (PVP K15) dodecyl sodium sulfate (SDS), cetab (CTAB).
Feature of the present invention is the particle size that can be adjusted product by the change technological factor such as adding of the kind of metal salt concentrations, reducing agent addition, reducing agent addition sequence, solvent, reaction temperature, reaction time, surfactant; The Co/Fe stoichiometric proportion of product is controlled, i.e. the composition of control CoFe nano-alloy powder by the Co/Fe stoichiometric proportion in initial salt.
Compared with prior art, present invention process process is simple, and reaction condition is gentle, preparation cost is cheap, therefore, it is possible to realize preparation in macroscopic quantity.Particularly by the change of process conditions, as the interpolation etc. of metal salt concentrations, reducing agent addition, surfactant, the controlling and adjustment to ferro-cobalt nano-alloy powder particle size can be realized; Meanwhile, also by adjustment reactant in ferro-cobalt metal ingredient than the controlling and adjustment realized product component.Adopt ferro-cobalt Nanoalloy particle prepared by the present invention, in spherical, particle diameter is 50 ~ 800 nm, is evenly distributed, and its pattern is shown in Fig. 1 ~ Fig. 8.The powder prepared is ferro-cobalt hybrid alloys powder, and its material phase analysis is as Fig. 9.
Accompanying drawing explanation
Fig. 1 is ferro-cobalt nano-alloy powder FESEM photo prepared by embodiment 1;
Fig. 2 is ferro-cobalt nano-alloy powder FESEM photo prepared by embodiment 2;
Fig. 3 is ferro-cobalt nano-alloy powder FESEM photo prepared by embodiment 3;
Fig. 4 is ferro-cobalt nano-alloy powder FESEM photo prepared by embodiment 4;
Fig. 5 is ferro-cobalt nano-alloy powder FESEM photo prepared by embodiment 5;
Fig. 6 is ferro-cobalt nano-alloy powder FESEM photo prepared by embodiment 6;
Fig. 7 is ferro-cobalt nano-alloy powder FESEM photo prepared by embodiment 7;
Fig. 8 is ferro-cobalt nano-alloy powder FESEM photo prepared by embodiment 8;
Fig. 9 is ferro-cobalt nano-alloy powder XRD collection of illustrative plates prepared by embodiment 8.
Detailed description of the invention
Embodiment 1
:
1, the preparation of reaction solution:
1) preparation of metal salt solution:
Be that solvent is by following proportions solution with ethylene glycol.
CoSO
40.04mol/L
FeSO
40.01mol/L
Temperature 25 DEG C
CTAB 0.70g/L
Mixing time 20 min
2) reductant solution preparation 1.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20mol/L
Hydrazine hydrate 2.00 mL
Temperature 25 DEG C
Mixing time 20 min
3) reductant solution preparation 2.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20mol/L
KBH
4 0.67g/L
Temperature 25 DEG C
Mixing time 20 min
2, the preparation of ferro-cobalt nano particle:
(1) the solution heating water bath to 60 DEG C respectively will prepared as stated above;
(2) 1. reductant solution is added dropwise in metal salt solution;
(3) react 20 ~ 30 minutes, until lightpink sticky mass occurs;
(4) 2. reductant solution is added dropwise in the thick precursor of lightpink;
(5) react 20 ~ 30 minutes, until react completely;
(6) centrifugation solution and ferro-cobalt nano-alloy powder;
(7) deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 3 times is used successively;
(8) dry collection.
Acquisition powder is spherical in shape, is evenly distributed, and average grain diameter is 74 nm.Its pattern as shown in Figure 1.
Embodiment 2
:
1, the preparation of reaction solution:
1) preparation of metal salt solution:
Be that solvent is by following proportions solution with ethylene glycol.
CoSO
40.08mol/L
FeSO
40.01mol/L
Temperature 25 DEG C
PVP K30 0.70g/L
Mixing time 20 min
2) reductant solution preparation 1.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.80mol/L
Hydrazine hydrate 16.00mL
Temperature 25 DEG C
Mixing time 20 min
3) reductant solution preparation 2.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.80mol/L
KBH
4 0.67g/L
Temperature 25 DEG C
Mixing time 20 min
2, the preparation of ferro-cobalt nano particle:
(1) the solution heating water bath to 90 DEG C respectively will prepared as stated above;
(2) 1. reductant solution is added dropwise in metal salt solution;
(3) react 20 ~ 30 minutes, until lightpink sticky mass occurs;
(4) 2. reductant solution is added dropwise in the thick precursor of lightpink;
(5) react 20 ~ 30 minutes, until react completely;
(6) centrifugation solution and ferro-cobalt nano-alloy powder;
(7) deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 3 times is used successively;
(8) dry collection.
Acquisition powder is spherical in shape, is evenly distributed, and average grain diameter is 187 nm.Its pattern as shown in Figure 2.
Embodiment 3
:
1, the preparation of reaction solution:
1) preparation of metal salt solution:
Be that solvent is by following proportions solution with water.
Co(NO
3)
2 0.04mol/L
Fe (NO
3)
30.01mol/L
Temperature 25 DEG C
PVP K30 0.70g/L
Mixing time 25 min
2) reductant solution preparation 1.:
Be that solvent is by following proportions solution with water.
KOH 1.00mol/L
Hydrazine hydrate 2.00 mL
Temperature 25 DEG C
Mixing time 25 min
2) reductant solution preparation 2.:
Be that solvent is by following proportions solution with water.
KOH 1.00mol/L
KBH
4 0.67g/L
Temperature 25 DEG C
Mixing time 25 min
2, the preparation of ferro-cobalt nano particle:
(1) solution prepared as stated above is heated to 70 DEG C respectively;
(2) 1. reductant solution is added dropwise in metal salt solution;
(3) react 20 ~ 30 minutes, until lightpink sticky mass occurs;
(4) 2. reductant solution is added dropwise in the thick precursor of lightpink;
(5) react 20 ~ 30 minutes, until react completely;
(6) centrifugation solution and ferro-cobalt nano-alloy powder;
(7) deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 3 times is used successively;
(8) dry collection.
Acquisition powder is spherical in shape, is evenly distributed, and average grain diameter is 173nm.Its pattern as shown in Figure 3.
Embodiment 4
:
1, the preparation of reaction solution:
1) preparation of metal salt solution:
Be that solvent is by following proportions solution with ethylene glycol.
CoSO4 0.04mol/L
FeSO
40.01mol/L
Temperature 25 DEG C
PVP K30 1.40g/L
Mixing time 30 min
2) reductant solution preparation 1.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20mol/L
Hydrazine hydrate 8.00 mL
Temperature 25 DEG C
Mixing time 30 min
3) reductant solution preparation 2.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20mol/L
NaBH
4 5.40g/L
Temperature 25 DEG C
Mixing time 30 min
2, the preparation of ferro-cobalt nano particle:
(1) solution prepared as stated above is heated to 80 DEG C respectively;
(2) 1. reductant solution is added dropwise in metal salt solution;
(3) react 20 ~ 30 minutes, until lightpink sticky mass occurs;
(4) 2. reductant solution is added dropwise in the thick precursor of lightpink;
(5) react 20 ~ 30 minutes, until react completely;
(6) centrifugation solution and ferro-cobalt nano-alloy powder;
(7) deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 3 times is used successively;
(8) dry collection.
Acquisition powder is spherical in shape, is evenly distributed, and average grain diameter is 62 nm.Its pattern as shown in Figure 4.
Embodiment 5
:
1, the preparation of reaction solution:
1) preparation of metal salt solution:
Be that solvent is by following proportions solution with ethylene glycol.
CoCl
20.04mol/L
FeCl
20.01mol/L
Temperature 30 DEG C
SDS 0.70g/L
Mixing time 20 min
2) reductant solution preparation 1.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20mol/L
Hydrazine hydrate 16.00 mL
Temperature 30 DEG C
Mixing time 20 min
3) reductant solution preparation 2.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20mol/L
KBH
4 3.35g/L
Temperature 30 DEG C
Mixing time 20 min
2, the preparation of ferro-cobalt nano particle:
(1) solution prepared as stated above is heated to 80 DEG C respectively;
(2) 1. reductant solution is added dropwise in metal salt solution;
(3) react 20 ~ 30 minutes, until lightpink sticky mass occurs;
(4) 2. reductant solution is added dropwise in the thick precursor of lightpink;
(5) react 20 ~ 30 minutes, until react completely;
(6) centrifugation solution and ferro-cobalt nano-alloy powder;
(7) deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 3 times is used successively;
(8) dry collection.
Acquisition powder is spherical in shape, is evenly distributed, and average grain diameter is 371 nm.Its pattern as shown in Figure 5.
Embodiment 6
:
1, the preparation of reaction solution:
1) preparation of metal salt solution:
Be that solvent is by following proportions solution with ethylene glycol.
CoSO
40.04mol/L
FeSO
40.01mol/L
Temperature 20 DEG C
PVP K30 0.70g/L
Mixing time 20 min
2) reductant solution preparation 1.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20mol/L
Hydrazine hydrate 5.00mL
Temperature 20 DEG C
Mixing time 20 min
3) reductant solution preparation 2.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20mol/L
KBH
4 0.67g/L
Temperature 20 DEG C
Mixing time 20 min
2, the preparation of ferro-cobalt nano particle:
(1) solution prepared as stated above is heated to 100 DEG C respectively;
(2) 1. reductant solution is added dropwise in metal salt solution;
(3) react 20 ~ 30 minutes, until lightpink sticky mass occurs;
(4) 2. reductant solution is added dropwise in the thick precursor of lightpink;
(5) react 20 ~ 30 minutes, until react completely;
(6) centrifugation solution and ferro-cobalt nano-alloy powder;
(7) deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 3 times is used successively;
(8) dry collection.
Acquisition powder is spherical in shape, is evenly distributed, and average grain diameter is 645 nm.Its pattern as shown in Figure 6.
Embodiment 7
:
1, the preparation of reaction solution:
1) preparation of metal salt solution:
Be that solvent is by following proportions solution with ethylene glycol.
CoSO
40.18mol/L
FeSO
40.02mol/L
Temperature 25 DEG C
PVP K15 0.70g/L
Mixing time 30 min
2) reductant solution preparation 1.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20 mol/L
Hydrazine hydrate 5.00 mL
Temperature 25 DEG C
Mixing time 30 min
3) reductant solution preparation 2.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 0.20 mol/L
NaBH
4 3.35g/L
Temperature 25 DEG C
Mixing time 30 min
2, the preparation of ferro-cobalt nano particle:
(1) solution prepared as stated above is heated to 95 DEG C respectively;
(2) 1. reductant solution is added dropwise in metal salt solution;
(3) react 20 ~ 30 minutes, until lightpink sticky mass occurs;
(4) 2. reductant solution is added dropwise in the thick precursor of lightpink;
(5) react 20 ~ 30 minutes, until react completely;
(6) centrifugation solution and ferro-cobalt nano-alloy powder;
(7) deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 3 times is used successively;
(8) dry collection.
Acquisition powder is spherical in shape, is evenly distributed, and average grain diameter is 736nm.Its pattern as shown in Figure 7.
Embodiment 8
:
1, the preparation of reaction solution:
1) preparation of metal salt solution:
Be that solvent is by following proportions solution with ethylene glycol.
CoSO
40.03mol/L
FeSO
40.02 mol/L
Temperature 20 DEG C
PVP K30 0.70g/L
Mixing time 20 min
2) reductant solution preparation 1.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 1.00mol/L
Hydrazine hydrate 8.00mL
Temperature 20 DEG C
Mixing time 20 min
3) reductant solution preparation 2.:
Be that solvent is by following proportions solution with ethylene glycol.
KOH 1.00mol/L
KBH
4 2.68g/L
Temperature 20 DEG C
Mixing time 20 min
2, the preparation of ferro-cobalt nano particle:
(1) solution prepared as stated above is heated to 90 DEG C respectively;
(2) 1. reductant solution is added dropwise in metal salt solution;
(3) react 20 ~ 30 minutes, until lightpink sticky mass occurs;
(4) 2. reductant solution is added dropwise in the thick precursor of lightpink;
(5) react 20 ~ 30 minutes, until react completely;
(6) centrifugation solution and ferro-cobalt nano-alloy powder;
(7) deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 3 times is used successively;
(8) dry collection.
Acquisition powder is spherical in shape, is evenly distributed, and average grain diameter is 897 nm.Its pattern as shown in Figure 8.Its XRD collection of illustrative plates as shown in Figure 9.
Claims (3)
1. a chemical preparation process for ferro-cobalt nano-alloy powder, is characterized in that, concrete steps are as follows:
1) preparation of reaction solution
A) preparing metal salting liquid: with ethylene glycol, deionized water for solvent, by metal salt solution 0.01 ~ 3.00 mol/L, surfactant 0.10 ~ 25.00 g/L proportions; Temperature is between 20 ~ 30 DEG C, and stir 20 ~ 30 minutes, wherein in metal salt solution, the stoichiometric proportion of Co/Fe is between 0.10 ~ 16;
B) reductant solution is prepared 1.: with ethylene glycol, deionized water for solvent, potassium hydroxide 0.20 ~ 6.00mol/L dissolves, and adds hydrazine hydrate 2.00 ~ 32.00 mL, and temperature is between 20 ~ 30 DEG C, stirs 20 ~ 30 minutes;
C) reductant solution is prepared 2.: with ethylene glycol, deionized water for solvent, potassium hydroxide 0.20 ~ 6.00mol/L dissolves, and adds potassium borohydride or sodium borohydride 0.67g ~ 5.40g/L; Temperature is between 20 ~ 30 DEG C, stirs 20 ~ 30 minutes;
2) preparation of nanometer cobalt iron alloy powder
1., 2. metal salt solution step 1 prepared and reductant solution distinguish heating water bath to 60 ~ 100 DEG C, then first 1. join in the metal salt solution of metallic cobalt, iron ion with reductant solution, react 20 ~ 30 minutes, until metallic cobalt, iron ion are reduced into the thick ferro-cobalt precursor of lightpink; 2. join in the thick ferro-cobalt precursor of lightpink with reductant solution again, react 20 ~ 30 minutes, until react complete, then centrifugation solution and ferro-cobalt nano-alloy powder, use deionized water, acetone, absolute ethanol washing ferro-cobalt nano-alloy powder 2 ~ 3 times more successively, collect after dry.
2. the chemical preparation process of ferro-cobalt nano-alloy powder as claimed in claim 1, it is characterized in that, described slaine is CoCl
2/ FeCl
2, CoSO
4/ FeSO
4with Co (NO
3)
2/ Fe (NO
3)
3among any one.
3. the chemical preparation process of ferro-cobalt nano-alloy powder as claimed in claim 1, it is characterized in that, described surfactant is any one among polyvinylpyrrolidone PVP K30, polyvinylpyrrolidone PVP K15 dodecyl sodium sulfate SDS, cetab CTAB.
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| CN108977827A (en) * | 2018-08-01 | 2018-12-11 | 兰州大学 | Include FeSe2-Co3O4Composite material and preparation method and catalyst and application |
| CN110899719A (en) * | 2018-09-14 | 2020-03-24 | 上海铁路通信有限公司 | Preparation method of lamellar structure cobalt particle material |
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| CN106890644A (en) * | 2017-01-13 | 2017-06-27 | 安徽师范大学 | A kind of ferrocobalt microstructure catalyst material, preparation method and application |
| CN106890644B (en) * | 2017-01-13 | 2019-10-11 | 安徽师范大学 | A kind of ferrocobalt microstructure catalyst material, preparation method and application |
| CN108977827A (en) * | 2018-08-01 | 2018-12-11 | 兰州大学 | Include FeSe2-Co3O4Composite material and preparation method and catalyst and application |
| CN108977827B (en) * | 2018-08-01 | 2020-08-28 | 兰州大学 | Comprising FeSe2-Co3O4Composite material and preparation method thereof, catalyst and application |
| CN110899719A (en) * | 2018-09-14 | 2020-03-24 | 上海铁路通信有限公司 | Preparation method of lamellar structure cobalt particle material |
| CN110899719B (en) * | 2018-09-14 | 2022-11-15 | 上海铁路通信有限公司 | Preparation method of lamellar structure cobalt particle material |
| CN113579229A (en) * | 2021-06-18 | 2021-11-02 | 西湖未来智造(杭州)科技发展有限公司 | Nano metal 3D printing ink and application thereof |
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