CN103588175A - Method for making nano-powder through ultrasonic atomization-microwave pyrolysis - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000011858 nanopowder Substances 0.000 title claims abstract description 41
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 150000003839 salts Chemical class 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000002243 precursor Substances 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 14
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 14
- 238000000889 atomisation Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002078 nanoshell Substances 0.000 claims description 12
- 239000012159 carrier gas Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical group CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 239000000243 solution Substances 0.000 abstract description 25
- 239000007788 liquid Substances 0.000 abstract description 5
- 210000003934 vacuole Anatomy 0.000 abstract description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 239000002086 nanomaterial Substances 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000002105 nanoparticle Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 238000005118 spray pyrolysis Methods 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical group [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 2
- 229910021617 Indium monochloride Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical group [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical group [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- APHGZSBLRQFRCA-UHFFFAOYSA-M indium(1+);chloride Chemical compound [In]Cl APHGZSBLRQFRCA-UHFFFAOYSA-M 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
Abstract
The invention relates to a method for making nano-powder through ultrasonic atomization-microwave pyrolysis, and belongs to the technical field of inorganic nano-materials. The method comprises the following steps: processing a soluble labile metal salt with a water-ethanol mixed solution to prepare a precursor solution, and carrying out ultrasonic atomization of the obtained precursor solution to obtain droplets; and carrying the droplets to microwaves under the action of a carrying gas or a fan for rapid drying pyrolysis to prepare the nano-powder which is a nanometer shell metal oxide or composite oxide powder. The method utilizes the combination of respective advantages of ultrasonic waves and the microwaves, the ultrasonic waves make a large amount of tiny bubbles generated because of cavitation in a liquid to form the droplets on the surface of the liquid, each of the droplets has a spherical hollow small vacuole structure, and the microwave heating has the advantages of uniform outward heating, selective heating, fast heating speed and easy control.
Description
Technical field
The present invention relates to a kind of ultrasonic atomization-microwave-heating and prepare the method for nano-powder, belong to technical field of inorganic nanometer material.
Background technology
The method that the present invention adopts ultrasonic atomization-microwave-heating to prepare nano-powder is prepared nanoshells metal-oxide powder, composite nano-powder and nano thin-film.
Nano composite material has good performance, at aspects such as photoelectric display device, transparency electrode, solar cell, liquid-crystal display, catalysis, be widely used, as ITO (Sn doped In_2O_3), AZO (Al doping ZnO), GZO (Ga doping ZnO), IZO (In doping ZnO), FTO (F adulterate SnO2) etc.The method of producing at present composite granule has coprecipitation method, spray heating decomposition, organic solvent azeotropic method etc.In these methods, the reagent of a kind of front method is easy to obtain, but cycle time is longer, and then a kind of method is used the higher organic reagent of price because of need, and cost is high, therefore apply lessly, spray pyrolysis can obtain even-grained powder fast.
Nanometer metal oxide powder has the plurality of advantages such as high-specific surface area, high reactivity, absorption and scatters ultraviolet ability are strong, at aspects such as metallurgy, chemical industry, electronics, environmental protection and the energy, magneticsubstance, fine ceramics, sensor and daily cosmetics and biomedicines, obtain development and application, demonstrated tempting prospect.Make nano-powder material there is good performance, crucial during the preparation of nanometer powder.At present, nano-powder comprises that the preparation method of metal oxide and Composite Oxides Nanometric Powder body can be divided into physical method and chemical process.
Physical method is prepared metal oxide and is met nm-class oxide powder and comprises physical pulverization method and mechanical ball milling method.Physical pulverization method is to obtain nanoparticle by methods such as mechanical disintegration, electrical spark blasts, is characterized in simple to operate, cost is low but product purity is low, and size distribution is inhomogeneous.Mechanical ball milling method is to control the nanoparticle that suitable condition obtains pure element nanoparticle, alloy nano particle or matrix material.That the method has advantages of is simple to operate, cost is low, but the product purity simultaneously preparing is low, size distribution is inhomogeneous.
Adopt chemical process to prepare the focus that nano-powder material is current research, it comprises vapour deposition process, the precipitator method and sol-gel method etc.
Vapour deposition process directly utilizes gas or material is become to gas, then issues biochemical reaction at gaseous state, finally the cooling nano particle that is condensed into again.The diameter of particle distribution uniform that adopts this method to prepare, reunion situation is light, but this method required equipment is special and expensive, and sample condition is controlled strict, complicated operation and immature.
At present, adopt chemical precipitation method to prepare the research of nano-powder material more, adopt common chemical industry equipment, flow process is simple, is suitable for scale operation, is the focus method of preparing at present nano-powder.But, the washing difficulty of negatively charged ion, it is the subject matter that the method exists that powder is easily reunited.
Sol-gel method adopts metal salt solution, precipitation agent and tensio-active agent etc. to prepare nano-powder presoma, then prepares powder material of nano oxide through strict ageing, washing, calcining.This technological advantage is that the particle diameter of nanometer powder making is even, stable components, and shortcoming is complex process, long flow path, need to uses additive and tensio-active agent, has not only increased cost but also has brought the problems such as cost for wastewater treatment height.
Traditional spray pyrolysis is to combine to a certain extent liquid phase method and gas phase legal system for a kind of processing method of powder technology advantage, the general press atomization mode that adopts is broken up liquid to become drop, then imports process furnace cavity inside and carry out heat exchange and complete dry and pyrolytic process.The advantage of this method is dry and pyrolytic process completes in a cavity, directly obtains product, without follow-up filtration, washing, dry, crushing process, simple to operate.But shortcoming be coal gas, Sweet natural gas or the heavy oil of adopting more as thermal source, the large quantity of exhaust gas not only producing must carry out individual curing, and waste gas takes away amount of heat, consumes energy higher.
Summary of the invention
The problem and the deficiency that for above-mentioned prior art, exist, the invention provides a kind of method that ultrasonic atomization-microwave-heating is prepared nano-powder.The present invention utilizes the advantage of ultrasonic wave and two kinds of methods of microwave to combine, and can prepare nanoshells metal-oxide powder and composite nano-powder.Ultrasonic wave is to meeting in liquid because cavatition produces a large amount of micro-bubbles, and on fluid surface, these a large amount of fine drop are pulled out away from liquid level and form droplet, and these droplets have spherical hollow little Vacuoles Structure within a certain period of time.Microwave heating have from inside to outside homogeneous heating, selectivity heating, heat-up rate fast, be easy to the advantages such as control, can to the ultrasonic wave droplet entering in cavity, be rapidly heated at short notice, make after cavity shape droplet wink-dry pyrolysis again or proceed subsequent handling, obtaining nanoshells metal-oxide powder, composite nano-powder.Therefore, the spray pyrolysis method that ultrasonic atomizatio is combined with microwave heating, may be used on the contour frontier of photochemical catalysis, and the present invention is achieved through the following technical solutions.
Ultrasonic atomization-microwave-heating is prepared a method for nano-powder, and its concrete steps are as follows:
(1) first the mixing solutions of the easy decomposing metal salt of solubility and water and ethanol is configured to precursor solution, wherein in mixing solutions, the volume ratio of water and ethanol is (50～100): (0～50);
(2) precursor solution step (1) being prepared obtains the droplet of equal footpath 10～200 μ m through ultrasonic atomization;
(3) under carrier gas or fan effect, step (2) is prepared to droplet to be brought in microwave, in temperature, be rapid drying pyrolysis under 300～1200 ℃ of conditions, can prepare nano-powder, nano-powder is nanoshells metal oxide or composite oxide powder.
In described step (1), in precursor solution, the volumetric molar concentration of soluble metallic salt is 0.001～2mol/L.
During metal-salt that the easy decomposing metal salt of described solubility is single metallic element, the nano-powder preparing is nanoshells metal oxide.
In described step (1), except adding solubility easily to decompose the metal-salt of single metallic element, while also having added the easy salt decomposition of solubility of another kind of different elements, the nano-powder preparing is composite oxide powder.
The easy decomposing metal salt of described solubility is acetate, villaumite, nitrate or vitriol.
Above-mentioned preparation in composite oxide powder, the easy salt decomposition of solubility of another kind of different elements can be non-metal salt or metal-salt.
The above-mentioned nano-powder preparing is composite oxide powder, the salt of the different elements that add is identical with the element of the required composite nano-powder obtaining, and the mol ratio of the different elements that add is also identical with the mol ratio of element in the required composite nano-powder obtaining.
The invention has the beneficial effects as follows: (1) utilizes hyperacoustic mode atomization precursor solution, can be by regulating hyperacoustic frequency and power to control the size of atomizing droplet, and then regulate size distribution and the pattern of prepared metal oxide, the particle diameter of product and pattern are controlled; (2) adopt the mode of microwave heating accurately to control pyrolysis temperature, microwave heating replaces the type of heating of traditional electric furnace, coal gas or heavy oil etc., have rate of heating fast, energy-efficient, be easy to control, the advantage such as safe and reliable, environmental friendliness; (3) operational path is simple, reaction process quick and stable, the waste gas of generation after absorb processing, cleanliness without any pollution, production efficiency is high, product purity is high, quality good; (4) this processing unit is simple, and product is easy to collect, and applicable to serialization, produces, and has broad application prospects.
Accompanying drawing explanation
Fig. 1 is the corresponding nanoshells Zinc oxide powder of the embodiment of the present invention 1 SEM schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1
This ultrasonic atomization-microwave-heating is prepared the method for nano-powder, and its concrete steps are as follows:
(1) first the easy decomposing metal salt of solubility and water and ethanolic soln are configured to precursor solution, wherein the volume ratio of water and ethanolic soln is 100:0, in precursor solution, the volumetric molar concentration of soluble metallic salt is 0.001mol/L, and soluble metallic salt is zinc acetate;
(2) precursor solution step (1) being prepared obtains the droplet of equal footpath 10 μ m through ultrasonic atomization;
(3) under carrier gas or fan effect, step (2) is prepared to droplet and be brought in microwave, rapid drying pyrolysis under 450 ℃ of conditions, can prepare nanoshells Zinc oxide powder.
The shell thickness of above-mentioned nanoshells metal-oxide powder is 10nm left and right, and uniform particles distributes, favorable dispersity, as shown in Figure 1.
Embodiment 2
This ultrasonic atomization-microwave-heating is prepared the method for nano-powder, and its concrete steps are as follows:
(1) first the easy decomposing metal salt of solubility and water and ethanolic soln are configured to precursor solution, wherein the volume ratio of water and ethanolic soln is 80:20, the InCl that wherein the easy decomposing metal salt of solubility is 2.16g
3.5H
2the SnCl of O and 0.19g
2.2H
2o;
(2) precursor solution step (1) being prepared obtains the droplet of equal footpath 100 μ m through ultrasonic atomization;
(3) under carrier gas or fan effect, step (2) is prepared to droplet and be brought in microwave, rapid drying pyrolysis under 700 ℃ of conditions, can prepare Nanometer ITO Powder.
Embodiment 3
This ultrasonic atomization-microwave-heating is prepared the method for nano-powder, and its concrete steps are as follows:
(1) first the easy decomposing metal salt of solubility and water and ethanolic soln are configured to precursor solution, wherein the volume ratio of water and ethanolic soln is 70:30, the SbCl that wherein the easy decomposing metal salt of solubility is 2.25g
3snCl with 6.75g
2.2H
2o;
(2) precursor solution step (1) being prepared obtains the droplet of equal footpath 100 μ m through ultrasonic atomization;
(3) under carrier gas or fan effect, step (2) is prepared to droplet and be brought in microwave, rapid drying pyrolysis under 600 ℃ of conditions, can prepare the composite metal oxide powder of nano oxidized antimony-doped tin oxide.
Embodiment 4
This ultrasonic atomization-microwave-heating is prepared the method for nano-powder, and its concrete steps are as follows:
(1) first the easy decomposing metal salt of solubility and water and ethanolic soln are configured to precursor solution, wherein the volume ratio of water and ethanolic soln is 85:15, the NH that wherein the easy decomposing metal salt of solubility is 2.25g
4the SnCl of F and 6g
4.5H
2o;
(2) precursor solution step (1) being prepared obtains the droplet of equal footpath 100 μ m through ultrasonic atomization;
(3) under carrier gas or fan effect, step (2) is prepared to droplet and be brought in microwave, rapid drying pyrolysis under 500 ℃ of conditions, can prepare nano FTO powder.
Embodiment 5
This ultrasonic atomization-microwave-heating is prepared the method for nano-powder, and its concrete steps are as follows:
(1) first the easy decomposing metal salt of solubility and water and ethanolic soln are configured to precursor solution, wherein the volume ratio of water and ethanolic soln is 50:50, and wherein the volumetric molar concentration of soluble metallic salt is 1mol/L, and the easy decomposing metal salt of solubility is zinc nitrate;
(2) precursor solution step (1) being prepared obtains the droplet of equal footpath 200 μ m through ultrasonic atomization;
(3) under carrier gas or fan effect, step (2) is prepared to droplet and be brought in microwave, rapid drying pyrolysis under 300 ℃ of conditions, can prepare nanoshells Zinc oxide powder.
Embodiment 6
This ultrasonic atomization-microwave-heating is prepared the method for nano-powder, and its concrete steps are as follows:
(1) first the mixing solutions of the easy decomposing metal salt of solubility and water and ethanol is configured to precursor solution, wherein in mixing solutions, the volume ratio of water and ethanol is 90:10, wherein in precursor solution, the volumetric molar concentration of soluble metallic salt is 2mol/L, and the easy decomposing metal salt of solubility is copper sulfate;
(2) precursor solution step (1) being prepared obtains the droplet of equal footpath 100 μ m through ultrasonic atomization;
(3) under carrier gas or fan effect, step (2) is prepared to droplet and be brought in microwave, in temperature, be rapid drying pyrolysis under 1200 ℃ of conditions, can prepare nano-powder, nano-powder is nanoshells cupric oxide powder.
Claims (5)
1. ultrasonic atomization-microwave-heating is prepared a method for nano-powder, it is characterized in that concrete steps are as follows:
(1) first the mixing solutions of the easy decomposing metal salt of solubility and water and ethanol is configured to precursor solution, wherein in mixing solutions, the volume ratio of water and ethanol is (50～100): (0～50);
(2) precursor solution step (1) being prepared obtains the droplet of equal footpath 10～200 μ m through ultrasonic atomization;
(3) under carrier gas or fan effect, step (2) is prepared to droplet to be brought in microwave, in temperature, be rapid drying pyrolysis under 300～1200 ℃ of conditions, can prepare nano-powder, nano-powder is nanoshells metal oxide or composite oxide powder.
2. ultrasonic atomization-microwave-heating according to claim 1 is prepared the method for nano-powder, it is characterized in that: in described step (1), in precursor solution, the volumetric molar concentration of soluble metallic salt is 0.001～2mol/L.
3. ultrasonic atomization-microwave-heating according to claim 2 is prepared the method for nano-powder, it is characterized in that: during metal-salt that the easy decomposing metal salt of described solubility is single metallic element, the nano-powder preparing is nanoshells metal oxide.
4. ultrasonic atomization-microwave-heating according to claim 2 is prepared the method for nano-powder, it is characterized in that: in described step (1) except adding solubility easily to decompose the metal-salt of single metallic element, while also having added the easy salt decomposition of solubility of another kind of different elements, the nano-powder preparing is composite oxide powder.
5. according to the ultrasonic atomization-microwave-heating described in claim 1 to 4, prepare the method for nano-powder, it is characterized in that: the easy decomposing metal salt of described solubility is acetate, villaumite, nitrate or vitriol.
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| CN105598470A (en) * | 2016-02-25 | 2016-05-25 | 昆明理工大学 | Preparation method of carbon reinforced metal/metal oxide composite powder |
| CN107698171A (en) * | 2017-08-31 | 2018-02-16 | 浙江大学 | A kind of preparation method of TiN coated glasses |
| CN107892329A (en) * | 2017-11-23 | 2018-04-10 | 北京科技大学 | A kind of high flux conbustion synthesis powder body material preparation facilities and preparation method |
| CN108002423A (en) * | 2017-12-19 | 2018-05-08 | 云南锡业职业技术学院 | The method that a kind of ultrasonic wave and microwave cooperating prepare nano zine oxide |
| CN108689418A (en) * | 2018-07-26 | 2018-10-23 | 塔里木大学 | A kind of stratiform houghite raw powder's production technology |
| CN109650438A (en) * | 2019-01-18 | 2019-04-19 | 昆明理工大学 | Nanometer witch culture tin dioxide powder and preparation method thereof |
| CN117139638A (en) * | 2023-09-04 | 2023-12-01 | 苏州科技大学 | Continuous preparation method of high-entropy alloy micro-nanospheres |
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Cited By (8)
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| CN105598470A (en) * | 2016-02-25 | 2016-05-25 | 昆明理工大学 | Preparation method of carbon reinforced metal/metal oxide composite powder |
| CN107698171A (en) * | 2017-08-31 | 2018-02-16 | 浙江大学 | A kind of preparation method of TiN coated glasses |
| CN107892329A (en) * | 2017-11-23 | 2018-04-10 | 北京科技大学 | A kind of high flux conbustion synthesis powder body material preparation facilities and preparation method |
| CN108002423A (en) * | 2017-12-19 | 2018-05-08 | 云南锡业职业技术学院 | The method that a kind of ultrasonic wave and microwave cooperating prepare nano zine oxide |
| CN108689418A (en) * | 2018-07-26 | 2018-10-23 | 塔里木大学 | A kind of stratiform houghite raw powder's production technology |
| CN109650438A (en) * | 2019-01-18 | 2019-04-19 | 昆明理工大学 | Nanometer witch culture tin dioxide powder and preparation method thereof |
| CN117139638A (en) * | 2023-09-04 | 2023-12-01 | 苏州科技大学 | Continuous preparation method of high-entropy alloy micro-nanospheres |
| CN117139638B (en) * | 2023-09-04 | 2024-03-19 | 苏州科技大学 | Continuous preparation method of high-entropy alloy micro-nanospheres |
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