CN112920001A - Method for preparing nano aluminum/porous copper oxide nano thermite by self-assembly of P4VP - Google Patents
Method for preparing nano aluminum/porous copper oxide nano thermite by self-assembly of P4VP Download PDFInfo
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- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000005751 Copper oxide Substances 0.000 title claims abstract description 42
- 229910000431 copper oxide Inorganic materials 0.000 title claims abstract description 42
- 239000003832 thermite Substances 0.000 title claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229920003228 poly(4-vinyl pyridine) Polymers 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 13
- 238000001338 self-assembly Methods 0.000 title claims abstract description 12
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000725 suspension Substances 0.000 claims abstract description 24
- 239000002243 precursor Substances 0.000 claims abstract description 13
- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004202 carbamide Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000001354 calcination Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- SXTLQDJHRPXDSB-UHFFFAOYSA-N copper;dinitrate;trihydrate Chemical compound O.O.O.[Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O SXTLQDJHRPXDSB-UHFFFAOYSA-N 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- 238000007792 addition Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000003837 high-temperature calcination Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 6
- 238000005054 agglomeration Methods 0.000 abstract description 3
- 230000002776 aggregation Effects 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 4
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000003760 magnetic stirring Methods 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 238000000527 sonication Methods 0.000 description 3
- 238000009210 therapy by ultrasound Methods 0.000 description 3
- 102000008857 Ferritin Human genes 0.000 description 2
- 108050000784 Ferritin Proteins 0.000 description 2
- 238000008416 Ferritin Methods 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002073 nanorod Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical class O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/02—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with an organic non-explosive or an organic non-thermic component
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G3/00—Compounds of copper
- C01G3/02—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
本发明公开了一种P4VP自组装制备纳米铝/多孔氧化铜纳米铝热剂的方法。该方法分为两个阶段，第一个阶段，采用Cu(NO3)2·H2O和尿素获得氧化铜前驱体，然后将其在高温煅烧以获得片状的多孔氧化铜，接着将多孔氧化铜与纳米铝粉通过物理混合的方式得到nAl/pCuO含能复合材料；第二个阶段为P4VP自组装阶段，配制P4VP异丙醇溶液，然后加入纳米铝粉超声分散，接着边搅拌边加入多孔氧化铜悬浮液，最后对纳米铝粉和氧化铜再次进行超声分散，将悬浮液经过抽滤、洗涤便可获得nAl/pCuO@P4VP纳米铝热剂。本发明制备的纳米铝热剂，组分间团聚现象减少，纳米铝粉与氧化铜之间接触的面积大大增加，对于提高纳米铝热剂的能量释放和反应性能有促进作用。
The invention discloses a method for preparing nano aluminum/porous copper oxide nano thermite by self-assembly of P4VP. The method is divided into two stages. In the first stage, Cu(NO 3 ) 2 ·H 2 O and urea are used to obtain copper oxide precursor, which is then calcined at high temperature to obtain sheet-like porous copper oxide. The nAl/pCuO energetic composite material is obtained by physical mixing of copper oxide and nano-aluminum powder; the second stage is the P4VP self-assembly stage, the P4VP isopropanol solution is prepared, and then the nano-aluminum powder is added for ultrasonic dispersion, and then added while stirring Porous copper oxide suspension, and finally ultrasonically disperse the nano-aluminum powder and copper oxide again, and filter and wash the suspension to obtain nAl/pCuO@P4VP nano-thermite. In the nano-thermite prepared by the invention, the agglomeration phenomenon between components is reduced, the contact area between the nano-aluminum powder and the copper oxide is greatly increased, and the energy release and reaction performance of the nano-thermite are improved.
Description
Technical Field
The invention belongs to the technical field of preparation of energetic materials, and relates to a method for preparing a nano aluminum/porous copper oxide nano thermite by self-assembly of P4 VP.
Background
The nano thermite is generally prepared from nano metal (Al, Mg, etc.) and metal oxide (CuO, Co)3O4Etc.) has become an important direction in the research of nano energetic materials due to its advantages of high reactivity and high energy density, etc., and has attracted the interest of many researchers. At present, the preparation method of the nano thermite mainly comprises the following steps: physical mixing, sol-gel methods, reaction-inhibited ball milling methods, self-assembly methods, physical vapor deposition methods, atomic layer deposition, and the like.
The physical mixing method is the simplest method for preparing the nano thermite, and the nano aluminum powder and the oxide are uniformly dispersed in the organic solvent by adopting an ultrasonic technology, but the problems of nonuniform mixing and poor product consistency of the nano thermite prepared by the method are easy to occur. Organic impurities introduced in the preparation process of the sol-gel method can reduce the reactivity of the nano energetic material, and in addition, an agglomeration phenomenon can occur. Physical vapor deposition and atomic layer deposition can make the contact between different components more compact and shorten the mass transfer distance of reactants, but the methods have high cost and higher requirements on equipment. The self-assembly method is to compound aluminum powder and functionalized nano oxide particles on a nano scale, and the prepared nano composite material has obviously improved performance due to the close contact among the particles. For more ordered assembly, metal particles are often coated on the surface of the material with the nanorod structure or in ordered channels in the mesoporous oxide.
In the current research of the self-assembly nano thermite, some surfactants and biomolecules are often used to realize the direct compounding of nano aluminum powder and oxide. For example, Slocik et al supported Fe on ferritin clathrates2O3And (3) nano particles, and then assembling the loaded cage ferritin and nano aluminum. (Slocik J M, Cross C A, Spowart J E, et al.Biologic able reliable reactivity of energetic nanomaterials using protein capsules [ J]Nano Letters,2013,13(6):2535-3O4And the aluminum powder is compounded with the nano aluminum powder, and the prepared rod-shaped nano thermite releases heat up to 2612 J.g-1And has good thermal performance (bear's coma. Co)3/O4Preparation, characterization and combustion performance research of/Al nano thermite [ D]Nanjing university of justice, 2017.).
Disclosure of Invention
The invention aims to provide a method for preparing a nano aluminum/porous copper oxide nano thermite by self-assembly of P4 VP. The surface of the nano oxide particles is coated with a layer of surfactant, and the nano aluminum particles are assembled with the oxide on the molecular level through the electrostatic attraction on the surface of the oxide, so that the nano aluminum and the oxide reach an ordered control state. The ordered arrangement can make the contact between the oxide particles and the nano aluminum particles more compact, and the reaction contact area can be increased, thereby promoting the combustion performance of the thermite to be enhanced.
The technical scheme for realizing the invention is as follows:
a method for preparing a nano-aluminum/porous copper oxide nano-thermite by self-assembly of P4VP comprises the following steps:
step 1: the porous copper oxide precursor is prepared by a hydrothermal synthesis method by using copper nitrate trihydrate and urea as raw materials.
Step 2: and (3) calcining the copper oxide precursor at high temperature to obtain the flaky porous copper oxide.
And step 3: preparing a P4VP isopropanol solution, and then adding nano aluminum powder for ultrasonic dispersion.
And 4, step 4: ultrasonically dispersing the porous copper oxide in isopropanol, then stirring the nano aluminum powder suspension in the step 3, and adding the copper oxide suspension into the mixture for three times in the stirring process.
And 5: and carrying out suction filtration, washing and drying on the suspension to obtain the nAl @ pCuO @ P4VP nano thermite.
Preferably, the temperature of the hydrothermal synthesis is 100-150 ℃, and the reaction time is 3-6 h.
Preferably, the calcination temperature of the precursor is 500-600 ℃, and the calcination time is 3-10 h.
Preferably, the concentration of the P4VP isopropanol solution is 0.1-0.2% (W/V).
Preferably, the time interval between two additions of the copper oxide suspension is 10 min.
Compared with the prior art, the invention has the following advantages:
(1) the flaky porous copper oxide increases the contact area between the aluminum powder and the oxidant, improves the mass and heat transfer efficiency and is beneficial to the release of the energy of the thermite; (2) the P4VP is adopted for self-assembly, so that the agglomeration phenomenon among components can be reduced, and aluminum powder and porous copper oxide can be orderly combined; (3) the P4VP is adopted to coat the aluminum powder, so that the oxidation process of the nano aluminum powder can be slowed down.
Drawings
FIG. 1 is a flow chart of preparation of nAl/pCuO @ P4VP nano thermite.
Fig. 2 is an SEM image of the nano thermite prepared in example 1.
Fig. 3 is an SEM image of the nano thermite prepared in comparative example 1.
FIG. 4 is a DSC curve of the nano thermite prepared in example 1, comparative example 2.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
Step 1: 12.08g of copper nitrate trihydrate and 3.003g of urea were dissolved in 500mL of deionized water and stirred for 30 min.
Step 2: and (3) pouring the solution obtained in the step (1) into a high-pressure hydrothermal kettle for hydrothermal synthesis, wherein the reaction temperature is 130 ℃, and the reaction time is 4 hours.
And step 3: and filtering, washing with deionized water, washing with absolute ethyl alcohol and drying the product of the hydrothermal synthesis to obtain the porous copper oxide precursor.
And 4, step 4: and calcining the precursor by using a muffle furnace, wherein the calcining temperature is 500 ℃, and the calcining time is 4 h.
And 5: 0.1g of P4VP is dissolved in 100mL of isopropanol, then 0.346g of nano aluminum powder is added, and ultrasonic dispersion is carried out for 1 h.
Step 6: 1g of flake porous copper oxide was added to 100mL of isopropanol and dispersed by sonication for 1 h.
And 7: and (3) dispersing the nano aluminum powder suspension in the step 5 by using magnetic stirring, then pouring about 33mL of porous copper oxide suspension, adding about 33mL of copper oxide suspension after 10min, and adding the rest suspension after 20 min.
And 8: and (3) carrying out ultrasonic treatment on the mixed suspension for 30min, then carrying out suction filtration, washing with absolute ethyl alcohol, and drying in a water bath at 50 ℃.
FIG. 1 is a flow chart of preparation of nAl/pCuO @ P4VP nano thermite, and FIG. 2 is an SEM image of nano thermite, from which it can be seen that nano aluminum particles are uniformly distributed on flake porous copper. FIG. 3 is a DSC curve of the nano thermite, which shows that the nano thermite has an exothermic peak at 465.4-642.6 ℃ and 651.6-849.2 ℃.
Example 2
Step 1: 12.08g of copper nitrate trihydrate and 3.003g of urea were dissolved in 500mL of deionized water and stirred for 30 min.
Step 2: and (3) pouring the solution obtained in the step (1) into a high-pressure hydrothermal kettle for hydrothermal synthesis, wherein the reaction temperature is 130 ℃, and the reaction time is 4 hours.
And step 3: and filtering, washing with deionized water, washing with absolute ethyl alcohol and drying the product of the hydrothermal synthesis to obtain the porous copper oxide precursor.
And 4, step 4: and calcining the precursor by using a muffle furnace, wherein the calcining temperature is 500 ℃, and the calcining time is 4 h.
And 5: 0.2g of P4VP is dissolved in 100mL of isopropanol, then 0.346g of nano aluminum powder is added, and ultrasonic dispersion is carried out for 1 h.
Step 6: 1g of flake porous copper oxide was added to 100mL of isopropanol and dispersed by sonication for 1 h.
And 7: and (3) dispersing the nano aluminum powder suspension in the step 5 by using magnetic stirring, then pouring about 33mL of porous copper oxide suspension, adding about 33mL of copper oxide suspension after 10min, and adding the rest suspension after 20 min.
And 8: and (3) carrying out ultrasonic treatment on the mixed suspension for 30min, then carrying out suction filtration, washing with absolute ethyl alcohol, and drying in a water bath at 50 ℃.
Example 3
Step 1: 12.08g of copper nitrate trihydrate and 3.003g of urea were dissolved in 500mL of deionized water and stirred for 30 min.
Step 2: and (3) pouring the solution obtained in the step (1) into a high-pressure hydrothermal kettle for hydrothermal synthesis, wherein the reaction temperature is 130 ℃, and the reaction time is 4 hours.
And step 3: and filtering, washing with deionized water, washing with absolute ethyl alcohol and drying the product of the hydrothermal synthesis to obtain the porous copper oxide precursor.
And 4, step 4: and calcining the precursor by using a muffle furnace, wherein the calcining temperature is 500 ℃, and the calcining time is 4 h.
And 5: 0.2g of P4VP was dissolved in 100mL of isopropanol, and then 0.484g of nano-aluminum powder was added and ultrasonically dispersed for 1 h.
Step 6: 1g of flake porous copper oxide was added to 100mL of isopropanol and dispersed by sonication for 1 h.
And 7: and (3) dispersing the nano aluminum powder suspension in the step 5 by using magnetic stirring, then pouring about 66mL of porous copper oxide suspension, adding about 66mL of copper oxide suspension after 10min, and adding the rest suspension after 20 min.
And 8: and (3) carrying out ultrasonic treatment on the mixed suspension for 1h, then carrying out suction filtration, washing with absolute ethyl alcohol, and drying in a water bath at 50 ℃.
Comparative example 1
The comparative example is basically the same as the example 1, and the only difference is that the porous copper oxide and the P4VP are firstly compounded, and then the nano aluminum powder is added for ultrasonic mixing to obtain the nano thermite. Fig. 3 is an SEM image of the nano thermite obtained under this comparative example. Comparing it with fig. 2, the amount of nano aluminum powder on the flaky porous copper oxide is significantly reduced. It can also be seen from FIG. 4 that the DSC curves of the nano-thermite prepared in example 1 and comparative example 1 are sharper in the two exothermic peaks than in comparative example 1 under the argon atmosphere with a temperature rise rate of 20K/min and a gas velocity of 30L/min, indicating that the energy release rate of the nano-thermite prepared in comparative example 1 is relatively slow.
Comparative example 2
The nano thermite prepared by the comparative example is only prepared by adopting a pure ultrasonic physical mixing mode, namely 0.346g of nano aluminum powder and 1g of porous copper oxide are simultaneously added into 100mL of isopropanol, then ultrasonic dispersion is carried out for 1h, and the nAl/pCuO nano thermite without P4VP is obtained after washing and drying.
Claims (6)
1. A method for preparing a nano aluminum/porous copper oxide nano thermite by self-assembly of P4VP is characterized by comprising the following steps:
step 1: preparing a porous copper oxide precursor by using copper nitrate trihydrate and urea as raw materials through a hydrothermal synthesis method;
step 2: obtaining flaky porous copper oxide from a copper oxide precursor in a high-temperature calcination mode;
and step 3: preparing a P4VP isopropanol solution, and then adding nano aluminum powder for ultrasonic dispersion;
and 4, step 4: ultrasonically dispersing porous copper oxide in isopropanol, stirring the nano aluminum powder suspension in the step 3, and adding the copper oxide suspension into the mixture for three times in the stirring process;
and 5: and carrying out suction filtration, washing and drying on the suspension to obtain the nAl @ pCuO @ P4VP nano thermite.
2. The preparation method according to claim 1, wherein in the step 1, the temperature of the hydrothermal synthesis is 100-150 ℃ and the reaction time is 3-6 h.
3. The preparation method according to claim 1, wherein in the step 2, the calcination temperature of the precursor is 400-600 ℃, and the calcination time is 3-10 h.
4. The preparation method according to claim 1, wherein in the step 3, the concentration of the P4VP isopropanol solution is 0.1-0.2% W/V.
5. The preparation method according to claim 1, wherein in the step 3, the ultrasonic dispersion time is 30-60 min.
6. The preparation method according to claim 1, wherein in the step 4, the time interval of each addition of the porous copper oxide is 10-20 min, and the amount of each addition is 30-70 mL.
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Cited By (4)
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| CN113845397A (en) * | 2021-09-23 | 2021-12-28 | 重庆大学 | Porous hollow structure thermite and preparation method thereof |
| CN114410147A (en) * | 2021-12-26 | 2022-04-29 | 南京理工大学 | A kind of preparation method of nano-thermite containing energy ink |
| CN115417737A (en) * | 2022-09-28 | 2022-12-02 | 南京理工大学 | A kind of molybdenum oxide-based thermite and preparation method thereof |
| CN116023198A (en) * | 2023-01-03 | 2023-04-28 | 南京理工大学 | A kind of thermite/perovskite energetic compound composite material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113845397A (en) * | 2021-09-23 | 2021-12-28 | 重庆大学 | Porous hollow structure thermite and preparation method thereof |
| CN114410147A (en) * | 2021-12-26 | 2022-04-29 | 南京理工大学 | A kind of preparation method of nano-thermite containing energy ink |
| CN115417737A (en) * | 2022-09-28 | 2022-12-02 | 南京理工大学 | A kind of molybdenum oxide-based thermite and preparation method thereof |
| CN115417737B (en) * | 2022-09-28 | 2023-09-01 | 南京理工大学 | A kind of molybdenum oxide-based thermite and preparation method thereof |
| CN116023198A (en) * | 2023-01-03 | 2023-04-28 | 南京理工大学 | A kind of thermite/perovskite energetic compound composite material and preparation method thereof |
| CN116023198B (en) * | 2023-01-03 | 2024-06-07 | 南京理工大学 | A thermite/perovskite energetic compound composite material and preparation method thereof |
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