CN109461557B - Ordered inorganic-organic hybrid nano material with room temperature ferrimagnetism and preparation - Google Patents
Ordered inorganic-organic hybrid nano material with room temperature ferrimagnetism and preparation Download PDFInfo
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- CN109461557B CN109461557B CN201710797132.5A CN201710797132A CN109461557B CN 109461557 B CN109461557 B CN 109461557B CN 201710797132 A CN201710797132 A CN 201710797132A CN 109461557 B CN109461557 B CN 109461557B
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Abstract
The invention aims to provide an ordered inorganic-organic hybrid nano material with room-temperature ferrimagnetism and a preparation method thereof, the ordered inorganic-organic hybrid nano material is prepared by a chemical liquid phase method, the inorganic-organic hybrid nano material has a two-dimensional nano sheet or nano granular microstructure, and an inorganic structural unit of the inorganic-organic hybrid nano material is β -Fe with a tetragonal crystal structure3‑ xMxSe4‑yQyWherein M ═ Cr, Co; q ═ S, Te; x is more than or equal to 0<3；0≤y<And 4, the organic structural unit is a metal organic amine complex. The obtained inorganic-organic hybrid nano material has the magnetic ordering temperature higher than room temperature and a periodic structure, the method has the advantages of simple preparation operation, easily obtained raw materials, short preparation period and low temperature, and can be used for synthesizing a flaky hybrid nano material with the size of 500-6 microns and the thickness of 100-300 nanometers or a granular hybrid nano material with the thickness of 50-500 nanometers.
Description
Technical Field
The invention belongs to the field of magnetic organic functional nano materials, and particularly relates to an inorganic-organic hybrid nano material with a magnetic ordered temperature higher than room temperature and periodic arrangement and a preparation method thereof.
Background
Unlike inorganic-organic nanocomposites, which are defined by the domain size, "hybrid inorganic-organic materials" are heterogeneous materials composed of an organic phase and an inorganic phase with a homogeneous chemical composition. According to different preparation methods, the inorganic-organic hybrid nano-materials can be divided into: (1) the organic phase is embedded in an inorganic network; (2) the inorganic phase is embedded in the organic network; (3) the organic phase and the inorganic phase form an interpenetrating network structure; (4) the cross-linked structure is formed by covalent bonds. For the magnetic inorganic-organic hybrid nano material, if the magnetic inorganic phase forms a nano structure, the hybrid material obtained by the above hybrid mode of the magnetic inorganic-organic hybrid nano material and the organic phase hardly has different magnetic properties from the inorganic nano material. By means of the preparation from bottom to top, metal ions or atoms are directly grown in a solution to form a magnetic alloy sub-nanometer structure (the thickness is several unit cells), and then organic molecules and inorganic structural units (one-dimensional chains, two-dimensional layers, three-dimensional segments and the like) are periodically arranged through the valence bond crosslinking effect, so that a novel hybrid material with periodic arrangement is formed, and the magnetic property (such as the change of Curie temperature) different from that of an inorganic phase can be possibly shown. The layered inorganic-organic hybrid nano material with periodic arrangement integrates the excellent characteristics of inorganic (sub) nano sheet materials, organic molecules and nano materials, not only greatly changes the physical properties of the material such as light, electricity, heat, magnetism and the like, but also has the advantages of low density, multiple functions and the like.
The group II-VI inorganic-organic hybrid semiconductor with periodic arrangement can conveniently regulate and control the size of the sub-nanometer structure of MQ (M ═ Mn, Zn, Cd; Q ═ S, Se, Te) in a narrow rangexWherein L is an organic amine or hydrazine [ x.y.huang, j.li, j.am.chem.soc.129(2007)3157.]. Inorganic-organic hybrid material GeOxThe sub-nano periodic structure in/en (en: ethylenediamine) results in strong quantum effects [ O.S.Gao, Y.Tang.Adv.Mater.20(2008)1837.]。[Fe(en)3]2[Fe16S20]enH2Layered hybrid semiconductors exhibit a special property of zero or near zero thermal expansion [ m.wu, j.li, chem.commun.46(2010) 1649) along the c-axis direction of the unit cell.]. Sun Yang et al found organometallic framework structures (MOF) [ (CH)3)2NH2]Fe(HCOO)3There is a phenomenon of magnetic quantum tunneling [ y.tians, et al.phys.rev.lett.112(2014)017202.]And [ (CH)3)2NH2]Cu(HCOO)3Multiferroic and magnetoelectric coupling phenomena [ y.tiana, et al. phys. status solid RRL 9(2015)62.]. Antiferromagnetic perovskite (C) prepared by Han et al2H5NH3)2[FeIICl4]Layered hybrid materials, undergo an evolution from tetragonal to orthorhombic to monoclinic structure in the 380K to 10K temperature range [ j.han, et al.]. In the metal-organic framework structure without magnetic ions, long-range ferromagnetic order [ l.shen, et al.j.am.chem.soc.134(2012) 17286) based on antiferromagnetic cu (ii) dimer building units and non-magnetic organic molecules was found.]. Preparing [ Fe ] by solvothermal method, Shushuhong, etc. by adopting mixed solvent of organic amine and water18S25](TETAH)14Nanobelt [ Z.A.Zang, et.chem.Mater.20 (2008)4749-4755.]And CoSe2Amine (programmed) nanoribbons [ m.r.gao, et.j.am.chem.soc.131 (2009)7486.]. The magnetic ordering temperature of the inorganic-organic hybrid material with periodic arrangement prepared previously is usually far lower than room temperature (below 200K), and how to increase the magnetic ordering temperature of the inorganic-organic hybrid material with periodic arrangement to above room temperature is a difficult problem.
The invention adopts a chemical liquid phase method, takes a metal organic amine complex as an organic structural unit, takes an iron-sulfur compound with a tetragonal crystal structure as an inorganic structural unit, and synthesizes the inorganic-organic hybrid nano material with room temperature magnetism and periodic arrangement for the first time. The method for preparing the inorganic-organic hybrid nano material with room temperature magnetism and periodic arrangement by using a chemical solution has not been reported.
Disclosure of Invention
The invention aims to provide an ordered inorganic-organic hybrid nano material with room temperature ferrimagnetism and a preparation method thereof, wherein a chemical liquid phase method is adopted to prepare the inorganic-organic hybrid nano material with a periodic structure and magnetic ordered temperature higher than room temperature, the method is simple in preparation operation, easy in raw material acquisition, short in preparation period and low in temperature, and can be used for synthesizing a flaky hybrid nano material with the size of 500-6 microns and the thickness of 100-300 nanometers or a granular hybrid nano material with the thickness of 50-500 nanometers.
The technical scheme of the invention is as follows:
the ordered inorganic-organic hybrid nano material with room temperature ferrimagnetism is characterized by being prepared by a chemical liquid phase method, wherein the inorganic-organic hybrid nano material has a two-dimensional nano flaky microstructure with the size of 500-6 micrometers and the thickness of 100-300 nanometers, or has a nano granular microstructure with the size of 50-500 nanometers, and the inorganic structural unit of the nano material is β -Fe with a tetragonal crystal structure3-xMxSe4-yQyWherein M ═ Cr, Co; q ═ S, Te; x is more than or equal to 0<3；0≤y<And 4, the organic structural unit is a metal organic amine complex.
The invention relates to an ordered inorganic-organic hybrid nano material with room temperature ferrimagnetism, which is characterized in that: the inorganic-organic hybrid nano material has room-temperature ferrimagnetic performance and a periodically arranged crystal structure.
The invention also provides a preparation method of the ordered inorganic-organic hybrid nano material with room temperature ferrimagnetism, which is characterized in that the ordered inorganic-organic hybrid nano material is prepared by a chemical liquid phase method, and the specific steps are as follows:
(1) mixing the raw materials with organic amine, and putting the mixture into a 250-2000 milliliter (ml) four-neck flask for dissolving to obtain a uniform precursor solution; removing air by using inert gas, heating to 120-200 ℃ under magnetic stirring, and preserving heat for 0-120 minutes; heating the precursor solution to the reaction temperature, keeping the temperature at the reaction temperature for 0.5 to 24 hours, and cooling the reaction system to room temperature after the reaction is finished;
(2) centrifugally separating the reaction product solution, and discarding the supernatant to obtain a precipitate;
(3) after washing with anhydrous ethanol (preferably 3 times), drying in vacuo gives the product as a powder.
Wherein, the raw material in the step (1) comprises a metal precursor capable of dissolving in organic amine and a precursor of selenium, sulfur or tellurium.
In the metal precursor, the raw material of iron is one of ferric acetylacetonate and ferrous acetylacetonate (preferably ferric acetylacetonate), and the raw material further comprises a precursor of cobalt, chromium, nickel and/or manganese which can be dissolved in an organic solvent, wherein the precursor of cobalt is cobalt acetylacetonate, the precursor of chromium is chromium acetylacetonate, the precursor of nickel is nickel acetylacetonate, and the precursor of manganese is manganese acetylacetonate.
The precursor of selenium, sulfur or tellurium (chalcogen raw material) is selenium powder and selenium dioxide powder (preferably selenium dioxide powder); one or more of sodium selenide, sodium sulfide, and sodium telluride.
The molar ratio of the metal atoms to the chalcogen atoms in the step (1) is 1: 1 to 1: 2.
The organic solvent in step (1) is an organic amine solvent with reducibility, preferably one or more of diethylenetriamine, triethylenetetramine (TETA), Tetraethylenepentamine (TEPA) and pentaethylenehexamine (most preferably tetraethylenepentamine).
The dosage of the raw materials in the step (1) is 0.05mmol-120mmol, and the dosage of the organic solvent is 20-1000 ml.
The reaction temperature in the step (1) is 180-300 ℃.
The invention adopts a chemical liquid phase method to prepare the ordered inorganic-organic hybrid nano material with room temperature ferrimagnetism, and has the advantages that: simple process, low cost, no need of expensive reagent and equipment with special requirements and obtaining the inorganic-organic hybrid nano material with room temperature ferrimagnetism.
Drawings
FIG. 1 shows an inorganic-organic hybrid material (β -Fe) having a periodic structure3Se4)4[Fe(TEPA)]X-ray diffraction patterns of (a);
FIG. 2 shows hybrid inorganic-organic material (β -Fe)3Se4)4[Fe(TEPA)]Scanning Electron Microscope (SEM) photograph of (a);
FIG. 3 shows hybrid inorganic-organic material (β -Fe)3Se4)4[Fe(TEPA)]Transmission Electron Microscope (TEM) photograph of (a);
FIG. 4 shows hybrid inorganic-organic material (β -Fe)3Se4)4[Fe(TEPA)]Thermogravimetric analysis curve of greater than 530K hybridizationThe material is thermally decomposed;
FIG. 5 shows hybrid inorganic-organic material (β -Fe)3Se4)4[Fe(TEPA)]A hysteresis loop at (a)300K and (b)5K of (a);
FIG. 6 shows an inorganic-organic hybrid material (β -Fe) heat-treated at 500K3Se4)4[Fe(TEPA)]A hysteresis loop at (a)300K and (b)5K of (a);
FIG. 7 shows an inorganic-organic hybrid material (β -Fe) having a periodic structure3Se4)4[Fe(TETA)4/3]X-ray diffraction patterns of (a);
FIG. 8 shows hybrid inorganic-organic material (β -Fe)3Se4)4[Fe(TETA)]The hysteresis loops of (a)300K and (b)5K of (a);
FIG. 9 shows hybrid inorganic-organic material (β -Fe)2.5Cr0.5Se4)4[Fe(TEPA)]X-ray diffraction pattern of (a).
Detailed Description
The following examples further illustrate the invention but are not intended to limit the invention thereto.
Example 1
Dissolving ferric acetylacetonate (5.25mmol) and selenium dioxide (6mmol) in tetraethylenepentamine (TEPA, 60ml), placing in a four-neck flask, introducing high-purity nitrogen gas to remove air, heating the mixed solution to 180 ℃ under magnetic stirring, preserving heat for 0.5 h, heating the mixed solution to 280 ℃ again, preserving heat for 3 h to obtain the inorganic-organic hybrid nano material (β -Fe)3Se4)4[Fe(TEPA)]Cooling to room temperature, and adding (β -Fe)3Se4)4[Fe(TEPA)]The nanomaterial was centrifuged and washed 3 times with absolute ethanol, dried in vacuum and stored in vacuum.
The crystal structure of the product was determined by x-ray diffraction to determine that the phase was tetragonal (β -Fe)3Se4)4[Fe(TEPA)]Scanning Electron Micrograph (SEM) of the alloy as shown in FIG. 1 shows (β -Fe)3Se4)4[Fe(TEPA)]The size of the nano-sheet is 500-5 microns, and the thickness is 100-300 nm, such asShown in FIG. 2(β -Fe)3Se4)[Fe(TEPA)]Transmission Electron Microscopy (TEM) photographs of the nanoplatelets are shown in FIG. 3 (β -Fe)3Se4)[Fe(TEPA)]Thermogravimetric analysis curve of the nanosheet, measurement shows that the hybrid material with the temperature higher than 530K is subjected to thermal decomposition, as shown in figure 4, the prepared inorganic-organic hybrid material (β -Fe)3Se4)4[Fe(TEPA)]300K (Kelvin) and low temperature (b)5K hysteresis loops of the nanoplatelets, as shown in FIG. 5 when the inorganic-organic hybrid material (β -Fe) is heat treated at 500K3Se4)4[Fe(TEPA)]The magnetic properties of the heat-treated hybrid material are significantly enhanced, as shown in FIG. 6, which shows the hysteresis loops at (a)300K and (b) 5K.
Example 2
Dissolving ferric acetylacetonate (5.25mmol) and selenium dioxide (6mmol) in triethylene tetramine (TETA, 60ml), placing in a four-neck flask, introducing high-purity nitrogen gas to remove air, heating the mixed solution to 180 ℃ under magnetic stirring, preserving heat for 0.5 h, heating the mixed solution to 250 ℃ and preserving heat for 3 h to obtain the inorganic-organic hybrid nano material (β -Fe)3Se4)4[Fe(TETA)4/3]Cooling to room temperature, and adding (β -Fe)3Se4)4[Fe(TETA)4/3]The nanomaterial was centrifuged and washed 3 times with absolute ethanol, dried in vacuum and stored in vacuum.
The product (β -Fe) was determined by x-ray diffraction3Se4)4[Fe(TETA)4/3]Crystal structure of (5), crystal structure thereof and (β -Fe) having tetragonal crystal structure3Se4)4[Fe(TEPA)]Same, as shown in FIG. 7. preparation state inorganic-organic hybrid material (β -Fe)3Se4)4[Fe(TETA)4/3]300K and low temperature (b)5K hysteresis loops for the nanoplatelets, as shown in fig. 8.
Example 3
Dissolving ferric acetylacetonate (4.375mmol), chromium acetylacetonate (0.875mmol) and selenium dioxide (6mmol) in triethylene tetramine (TETA, 60ml), placing in a four-neck flask, introducing high-purity nitrogen gas to remove air, heating the mixed solution to 180 ℃ under magnetic stirring, preserving heat and preserving heatHeating the mixed solution to 300 ℃ for 0.5 hour, preserving the temperature for 3 hours to obtain inorganic-organic hybrid nano material, cooling to room temperature, centrifugally separating the hybrid nano material, washing for 3 times by absolute ethyl alcohol, drying in vacuum, and preserving in vacuum (β -Fe)2.5Cr0.5Se4)4[Fe(TETA)]The x-ray diffraction pattern of (a) as shown in fig. 9.
Example 4
Dissolving ferric acetylacetonate (4.375mmol), chromium acetylacetonate (0.875mmol), selenium dioxide (3mmol) and sodium antimonide (3mmol) in triethylene tetramine (TETA, 60ml), placing in a four-neck flask, introducing high-purity nitrogen to remove air, heating the mixed solution to 180 ℃ under magnetic stirring, preserving heat for 0.5 hour, heating the mixed solution to 300 ℃ again, and preserving heat for 3 hours to obtain inorganic-organic hybrid (β -Fe)2.5Cr0.5Se2Te2)4[Fe(TETA)]And (3) nano materials. And cooling to room temperature, centrifugally separating the hybrid nano material, washing for 3 times by using absolute ethyl alcohol, drying in vacuum, and storing in vacuum.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The ordered inorganic-organic hybrid nano material with room temperature ferrimagnetism is characterized by being prepared by adopting a chemical liquid phase method, wherein the inorganic-organic hybrid nano material has a two-dimensional nano sheet or nano granular microstructure, and the inorganic structural unit of the inorganic-organic hybrid nano material is β -Fe with a tetragonal crystal structure3-xMxSe4-yQyWherein M ═ Cr, Co; q ═ S, Te; x is more than or equal to 0<3；0≤y<4, the organic structural unit is a metal organic amine complex, and the preparation method comprises the following steps:
mixing the raw materials with organic amine, and placing the mixture in a 250 ml-2000 ml four-neck flask for dissolving to obtain a uniform precursor solution; introducing inert gas to remove air, heating to 120-200 ℃ under magnetic stirring, and keeping the temperature for 0-120 minutes; heating the precursor solution to the reaction temperature, and keeping the temperature at the reaction temperature for 0.5-24 hours;
the raw materials comprise a metal precursor capable of dissolving in organic amine and a precursor of selenium, sulfur or tellurium; the metal precursor capable of dissolving in organic amine is one or a mixture of ferric acetylacetonate, ferrous acetylacetonate, chromium acetylacetonate and cobalt acetylacetonate, wherein ferric acetylacetonate and/or ferrous acetylacetonate must be contained; the precursor of selenium, sulfur or tellurium which can be dissolved in organic amine is one or more of selenium powder, selenium dioxide, sodium selenide, sodium sulfide and sodium telluride, wherein one or more of selenium powder, selenium dioxide and sodium selenide is necessary;
the organic amine solvent is one or more of diethylenetriamine, triethylene tetramine, tetraethylene pentamine and pentaethylene hexamine.
2. The ordered inorganic-organic hybrid nanomaterial with room-temperature ferrimagnetism according to claim 1, wherein: the inorganic-organic hybrid nanomaterial has a periodically arranged crystal structure.
3. The ordered inorganic-organic hybrid nanomaterial with room-temperature ferrimagnetism according to claim 1, wherein: the inorganic-organic hybrid nano material has room-temperature ferrimagnetism.
4. The preparation method of the ordered inorganic-organic hybrid nanomaterial with room-temperature ferrimagnetism according to claim 1, characterized by adopting a chemical liquid phase method for preparation, and comprising the following specific steps:
(1) mixing the raw materials with organic amine, and placing the mixture in a 250 ml-2000 ml four-neck flask for dissolving to obtain a uniform precursor solution; introducing inert gas to remove air, heating to 120-200 ℃ under magnetic stirring, and keeping the temperature for 0-120 minutes; heating the precursor solution to the reaction temperature, keeping the temperature at the reaction temperature for 0.5-24 hours, and cooling the reaction system to room temperature after the reaction is finished;
(2) centrifugally separating the reaction product solution, and discarding the supernatant to obtain a precipitate;
(3) after washing with absolute ethanol, drying in vacuo gave the product as a powder.
5. The method for preparing ordered inorganic-organic hybrid nanomaterial with room temperature ferrimagnetism according to claim 4, wherein the method comprises the following steps: the raw materials in step (1) include a metal precursor that is soluble in organic amine and a precursor of selenium, sulfur or tellurium.
6. The method for preparing ordered inorganic-organic hybrid nanomaterial with room temperature ferrimagnetism according to claim 5, wherein: the metal precursor capable of dissolving in organic amine is one or a mixture of ferric acetylacetonate, ferrous acetylacetonate, chromium acetylacetonate and cobalt acetylacetonate, wherein ferric acetylacetonate and/or ferrous acetylacetonate must be contained; the precursor of selenium, sulfur or tellurium which can be dissolved in organic amine is one or more of selenium powder, selenium dioxide, sodium selenide, sodium sulfide and sodium telluride, wherein one or more of selenium powder, selenium dioxide and sodium selenide must be contained.
7. The method for preparing ordered inorganic-organic hybrid nanomaterial with room temperature ferrimagnetism according to claim 4, wherein the method comprises the following steps: the molar ratio of metal atoms to chalcogen atoms in the raw material is 1: 1 to 1: 2.
8. The method for preparing ordered inorganic-organic hybrid nanomaterial with room temperature ferrimagnetism according to claim 4, wherein the method comprises the following steps: the organic amine solvent in the step (1) is one or more of diethylenetriamine, triethylenetetramine (TETA), Tetraethylenepentamine (TEPA) and pentaethylenehexamine.
9. The method for preparing ordered inorganic-organic hybrid nanomaterial with room temperature ferrimagnetism according to claim 4, wherein the method comprises the following steps: in the step (1), the consumption of the raw materials is 0.05-120 mmol, and the volume of the organic solvent is 20-1000 ml.
10. The method for preparing ordered inorganic-organic hybrid nanomaterial with room temperature ferrimagnetism according to claim 4, wherein the method comprises the following steps: the reaction temperature in the step (1) is 180-300 ℃.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759162A (en) * | 2010-01-11 | 2010-06-30 | 中山大学 | Low-temperature liquid phase synthesizing method of monodisperse square crystalline phase ferrous selenide square nanometer sheet |
| WO2017085741A1 (en) * | 2015-11-17 | 2017-05-26 | Council Of Scientific & Industrial Research | Room-temperature ferromagnetic-ferroelectric multiferroic material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759162A (en) * | 2010-01-11 | 2010-06-30 | 中山大学 | Low-temperature liquid phase synthesizing method of monodisperse square crystalline phase ferrous selenide square nanometer sheet |
| WO2017085741A1 (en) * | 2015-11-17 | 2017-05-26 | Council Of Scientific & Industrial Research | Room-temperature ferromagnetic-ferroelectric multiferroic material |
Non-Patent Citations (3)
| Title |
|---|
| Chemical Excision of Tetrahedral FeSe2 Chains from the Superconductor FeSe: Synthesis, Crystal Structure, and Magnetism of Fe3Se4(en)2;Chongin Pak，et al;《Journal of the American Chemical Society》;20131203;19111-19114 * |
| Control over connectivity and magnetism of tetrahedral FeSe2 chains through coordination Fe–amine complexes;Joshua T. Greenfield，et al;《Chem. Commun.》;20151231;5355-5358 * |
| Fe3Se4 Nanostructures with Giant Coercivity Synthesized by Solution Chemistry;Hongwang Zhang，et al;《Chemistry of Materials》;20110721;3769-3774 * |
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