CN106116993A - A kind of Subjective and Objective explosive embedding micro-molecular gas and preparation method thereof - Google Patents
A kind of Subjective and Objective explosive embedding micro-molecular gas and preparation method thereof Download PDFInfo
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- CN106116993A CN106116993A CN201610438542.6A CN201610438542A CN106116993A CN 106116993 A CN106116993 A CN 106116993A CN 201610438542 A CN201610438542 A CN 201610438542A CN 106116993 A CN106116993 A CN 106116993A
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B25/00—Compositions containing a nitrated organic compound
- C06B25/36—Compositions containing a nitrated organic compound the compound being a nitroparaffin
- C06B25/40—Compositions containing a nitrated organic compound the compound being a nitroparaffin with two or more nitroparaffins present
Abstract
The invention discloses a kind of Subjective and Objective explosive embedding micro-molecular gas and preparation method thereof, by by N2O gas is continually fed in CL 20 solution, utilizes the method for solution recrystallization to make CL 20 and N2O cocrystallization, thus obtain CL 20 and N2The Subjective and Objective explosive crystal of O cocrystallization.The method of the present invention, based on host-guest chemistry thought, the method using gas-liquid cocrystallization, by micro-molecular gas and explosive cocrystallization in the solution, obtains a kind of embedding N2The CL 20 Subjective and Objective explosive crystal of O gas.The method preparation technology is simple, experiment condition is gentle, without using gases at high pressure that micro-molecular gas can be made to embed in explosive crystal, the present invention can be the structure optimization of high explosive and performance regulation and control provide the design of new thinking, the most alternatively advanced weaponry and manufacture and provide base support.
Description
Technical field
The present invention relates to a kind of Subjective and Objective explosive crystal embedding micro-molecular gas and preparation method thereof, be specifically related to one
Embed N2CL-20 Subjective and Objective explosive of O gas and preparation method thereof.
Background technology
Modern weapons proposes " precision strike, efficiently injure, failure-survival capability and environmental friendliness " etc. more to energetic material
The most higher requirement, causes tradition energetic material to face a severe challenge.And different use environment and purpose, again to high explosive
Performance propose particular/special requirement.As main charge requires to feel immediately high energy to realize safe and reliable efficiently injuring, and originate medicine, propagation of explosion
Medicine requires easily to detonate, COMBUSTION TO DETONATION TRANSITION is fast etc. to realize reliable initiation.Therefore, it is achieved the functionalization of high explosive, further
The demand improving explosive property pair and meet modern advanced weaponry is most important.
The performance improving explosive at present mainly has following several technological approaches: design synthesizing new high energy single chmical compound explosive, system
For Composite Energetic Materials, prepare and explore containing energy eutectic, new ideas energetic material, contain energy crystal quality improvement etc., owing to being closed
The restriction of one-tenth condition, stability of material, application feasibility or mentality of designing etc., and be difficult to realize explosive combination property in the near future
Be greatly improved, it is difficult to meet reality application demand.
Existing energetic material is carried out structure and improves the reliable approach being an up explosive property.Hexanitro six azepine is different
5 hereby alkane (be called for short CL-20 or HNIW) be the single chmical compound explosive that the energy being actually applied is the highest, molecular formula is C6H6N12O12, close
ε-CL-20 the explosion velocity that degree is the highest with energy reaches 9650m.s-1, the explosion velocity of α-CL-20 is also close to 9400m.s-1, its molecular structure
For:
CL-20 not only has the highest energy, it may have the good explosion transfer performance that detonates.Therefore, carry out with CL-20 for base
Structure optimization and performance improvement, it is possible to realize being substantially improved of explosive property.
Research show in the crystal structure of material of main part introduce small-molecule substance obtain Subjective and Objective comprise complex or
Both form supermolecule material, and Subjective and Objective intermolecular weak interaction produces great shadow to properity and the application of material
Ring.Host-guest chemistry thought is introduced explosive crystal design, by the structure cell cavity of CL-20 self embeds small-molecule substance,
Obtain CL-20 base novel Subjective and Objective energetic material, it is expected to realize CL-20 crystal structure being improved and optimizing, then realize performance
Regulation and control.At present both at home and abroad by gases at high pressure method, at 15MPa, under the conditions of 80 DEG C, by CO2Shape in press-in CL-20 structure cell cavity
Become CL-20.CO2Subjective and Objective explosive (Martin S S, et al, Host Guest Inclusion Compound from
Nitramine Crystals Exposed to Condensed Carbon Dioxide Chemistry-A European
Journal,2010,16(45):13473-13478；Zhu Kang, etc., supercritical CO2Anti-solvent method is prepared CL-20 ultrafine dust and is contained
Energy material, 2012,20 (4): 445-449.), but the method realizes in high-pressure sealed chamber, and experiment condition is harsh and fried
The risk of medicine blast is big, needs to explore a kind of relatively mild embedding micro-molecular gas Subjective and Objective explosive preparation method.The present invention
It is based on host-guest chemistry thought, by the method for solution-air cocrystallization, designs and prepare the Subjective and Objective embedding small-molecule substance
Explosive, provides new thinking for explosive improved combination properties, and opens up and carry out high explosive performance by embedding small-molecule substance
The new way of regulation and control.
Summary of the invention
It is an object of the invention to obtain a kind of embedding N2CL-20 Subjective and Objective explosive crystal of O gas and preparation method thereof, for
The thinking that explosive optimizes and performance improvement offer is new.
For achieving the above object, the invention provides the preparation method of a kind of Subjective and Objective explosive embedding micro-molecular gas,
The method is by by nitrous oxide (N2O), during gas is continually fed into CL-20 solution, the method for solution recrystallization is utilized to make CL-20
With N2O cocrystallization, thus obtain CL-20 and N2The Subjective and Objective explosive crystal of O cocrystallization.
The preparation method of the Subjective and Objective explosive of above-mentioned embedding micro-molecular gas mainly comprises the steps that
Step one: CL-20 is dissolved in liquid medium；
Step 2: at ambient pressure by N2O gas is passed through the solution of gained in step one, makes gas the most molten
Solve；
Step 3: use the method for solution recrystallization to make the solution supersaturation in step 2, the most persistently lead to simultaneously
Enter N2O gas, thus separate out crystal；
Step 4: being filtered by gained crystal in step 3, wash, be dried, gained solid is CL-20 and N2O cocrystallization
Subjective and Objective explosive.
In the preparation method of the Subjective and Objective explosive of above-mentioned embedding micro-molecular gas, described liquid medium refer to CL-20 and
N2O all has certain deliquescent single or mixed solvent；When described liquid medium is mixed solvent, described mixed solvent is
Non-alcohols solvent is obtained by mixing with alcohols solvent, and described non-alcohols solvent mixes preferably according to volume ratio 1:1～4 with alcohols solvent
Close.
In the preparation method of the Subjective and Objective explosive of above-mentioned embedding micro-molecular gas, described solvent selected from acetone, ethyl acetate,
One or more in pentyl acetate, methanol, ethanol, isoamyl alcohol, but it is not limited to cited solvent.
In the preparation method of the Subjective and Objective explosive of above-mentioned embedding micro-molecular gas, N in described step 22O gas needs logical
Entering in solution bubbling, make gas and solution be fully contacted dissolving, the preferably bubbling time is between 10min～1h；Described step
Rapid one, two and/or step 3 50～400r/min mechanical agitation or 50～600r/min magnetic agitation can be selected to have assisted
Become.
In the preparation method of the Subjective and Objective explosive of above-mentioned embedding micro-molecular gas, the method for described solution recrystallization includes molten
Agent-non-solvent method, solution-evaporation.
In the preparation method of the Subjective and Objective explosive of above-mentioned embedding micro-molecular gas, the method for solution recrystallization uses described molten
During agent-non-solvent method crystallization, non-solvent is slowly added dropwise or is quickly poured in CL-20 solution, and non-solvent drop rate is preferably
For more than 0.1ml/min, non-solvent selected from petroleum ether, normal heptane, hexamethylene, chloroform, carbon tetrachloride, 1,2-bis-chloroethene
Alkane, vinyl trichloride, toluene, but it is not limited to cited non-solvent.
In the preparation method of the Subjective and Objective explosive of above-mentioned embedding micro-molecular gas, the method for solution recrystallization uses solution to steam
During the method for sending out crystallization, solvent evaporation approach preferably by being continually fed in solution bubbling or being close to by air-flow by gas
Solution surface constantly purges, and takes away solvent along with the discharge of tail gas.
Additionally, while using solvent-nonsolvent method or solution-evaporation, it is also possible to select the nondominant hand of solution cooling
Section carrys out inducing solution crystallization.Described step one, reduce along with the rising of temperature due to the dissolubility of gas in two, three, for protecting
Card N2O gas the most fully dissolves, it is preferred that the crystallization temperature of solution controls between 0 DEG C～room temperature.
Use above-mentioned preparation method, present invention obtains a kind of novel Subjective and Objective explosive embedding micro-molecular gas brilliant
Body, i.e. CL-20.N2O eutectic crystal.
Compared with prior art, one of beneficial effects of the present invention is: the method for the present invention based on host-guest chemistry thought,
The method using solution-air cocrystallization, by micro-molecular gas and explosive cocrystallization in the solution, obtains a kind of embedding N2O gas
CL-20 Subjective and Objective explosive crystal.The method preparation technology is simple, experiment condition is gentle, it is not necessary to use gases at high pressure can make little
Molecular gas embeds in explosive crystal, and the present invention can be the structure optimization of high explosive and performance regulation and control provide new thinking, with
Time be alternatively advanced weaponry design and manufacture provide base support.
Accompanying drawing explanation
Fig. 1 is CL-20 and N2O forms the shape appearance figure of Subjective and Objective explosive crystal.
Fig. 2 is CL-20.N2The infrared spectrum of O Subjective and Objective explosive.
Fig. 3 is CL-20.N2X-ray powder diffraction (XRD) spectrogram of O Subjective and Objective explosive.
Fig. 4 is CL-20.N2Means of differential scanning calorimetry-thermal weight loss (DSC-TG) curve of O Subjective and Objective explosive.
Fig. 5 is CL-20.N2The original position two-dimensional infrared spectrogram of O Subjective and Objective explosive.
Fig. 6 is CL-20.N2The in-situ three-dimensional infrared spectrum of O Subjective and Objective explosive.
Fig. 7 is CL-20.N2O Subjective and Objective explosive discharges the mass spectrum of gas after Vacuum Heat stability (180 DEG C, 1h) processes
Figure.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
Detecting instrument:
Field emission scanning electron microscope: Apollo 300 CSF-3A, test specimen metal spraying processes, protective gas: argon, electric current:
20mA, time: 3min, running voltage: 2KV.
X-ray powder diffractometer (XRD): Bruker D8Advance, diffraction source: CuK αOne-dimensional
Detector array: vantec-1, electric current: 40mA, voltage: 40kv, sweep limits: 5～50 °, sweep speed: 0.2s/ walks, scanning
Step-length: 0.02 °/step.
Means of differential scanning calorimetry-thermal weight loss combined instrument (DSC-TG): the resistance to 449C type of speeding of Germany, test scope: 50～500 DEG C,
Heating rate: 10 DEG C of .min-1, N2: 50ml.min-1。
Infrared spectrometry (IR): Nicolet 800 Fourier infrared spectrograph, KBr tabletting, surface sweeping scope: 400cm-1~
4000cm-1, resolution: 4cm-1。
Thermal weight loss-infrared combined instrument (TG-FTIR): Nicolet710 Fourier infrared spectrograph, gas phase sweep limits:
600cm-1～4000cm-1, resolution: 5cm-1；TGA2050 thermal gravimetric analyzer, thermobalance precision: 1 μ g, heating rate: 10
℃.min-1.Nitrogen purges, and is heated to 450 DEG C from room temperature.
Vacuum Heat stability-GC-MS (DVST-MS): the explosive Vacuum Heat stability on-line checking system of independent development
System, at 180 DEG C, heated at constant temperature 1h, online gas production, by mass spectrographic method, gas component is carried out qualitative analysis.
Embodiment 1
(1) weigh 1gCL-20 explosive powder, be poured slowly in three neck round bottom flask, then weigh analytically pure ethyl acetate
Solution 5ml adds, and under room temperature, 50r/min magnetic agitation makes explosive fully dissolve；
(2) in fume hood, will be equipped with pure N2The 4L steel cylinder of O gas is imported through politef trachea by air relief valve
In CL-20 solution, ventilation bubbling 1h, makes N continuously2O gas the most fully dissolves saturated；
(3) use solvent-nonsolvent method, the petroleum ether of 20ml is quickly poured in CL-20 solution, is continually fed into simultaneously
N2O gas sparging, under room temperature, stirred crystallization 1h, filters the solid separated out, washs, be dried 1h, i.e. obtain in 50 DEG C of baking ovens
CL-20.N2O Subjective and Objective explosive crystal.
Embodiment 2
(1) weigh 1gCL-20 explosive powder, be poured slowly in three neck round bottom flask, then weigh analytically pure acetone soln
3ml and ethanol solution 12ml adds, and under room temperature, 600r/min magnetic agitation makes explosive fully dissolve；
(2) in fume hood, will be equipped with pure N2The 4L steel cylinder of O gas is imported through politef trachea by air relief valve
In CL-20 solution, ventilation bubbling 5min, makes N continuously2O gas the most fully dissolves saturated；
(3) use solution-evaporation, be continually fed into N2O gas sparging, the solvent vapour of volatilization constantly discharges along with tail gas,
The tail gas produced is passed through outside fume hood discharge chamber, at 10 DEG C, stirred crystallization 2h, filters the solid separated out, washs, at 50 DEG C
Baking oven is dried 1h, i.e. obtains CL-20.N2O Subjective and Objective explosive crystal.
Embodiment 3
(1) weigh 1gCL-20 explosive powder, be poured slowly in three neck round bottom flask, then weigh analytically pure pentyl acetate
Solution 5ml adds, and under room temperature, 400r/min mechanical agitation makes explosive fully dissolve；
(2) in fume hood, will be equipped with pure N2The 4L steel cylinder of O gas is imported through politef trachea by air relief valve
In CL-20 solution, ventilation bubbling 50min, makes N continuously2O gas the most fully dissolves saturated；
(3) solvent-nonsolvent method is used to be combined with falling temperature method, by peristaltic pump by the CCl of 20ml4Solution with
0.1ml.min-1Speed be slowly dropped in CL-20 solution, be continually fed into N simultaneously2O gas sparging, and flask is put into ice
Solution temperature is dropped to 0 DEG C by water-bath, stirred crystallization 3.5h, filters the solid separated out, washs, be dried in 50 DEG C of baking ovens
1h, i.e. obtains CL-20.N2O Subjective and Objective explosive crystal.
Embodiment 4
(1) weigh 1gCL-20 explosive powder, be poured slowly in three neck round bottom flask, then weigh analytically pure ethyl acetate
Solution 5ml and isoamyl alcohol 5ml adds, and under room temperature, 50r/min mechanical agitation makes explosive fully dissolve；
(2) in fume hood, will be equipped with pure N2The 4L steel cylinder of O gas is imported through politef trachea by air relief valve
In CL-20 solution, ventilation bubbling 30min, makes N continuously2O gas the most fully dissolves saturated；
(3) use solution-evaporation to be combined with falling temperature method, be continually fed into N2O gas, drum during now gas is not passed through solution
Steep but air-flow is close to solution surface and constantly purges, the tail gas produced is passed through outside fume hood discharge chamber, will burn simultaneously
Bottle is put in ice-water bath and solution temperature is dropped to 0 DEG C, stirred crystallization 1h, and the solid separated out is filtered, washed, in 50 DEG C of baking ovens
It is dried 1h, i.e. obtains CL-20.N2O Subjective and Objective explosive crystal.
Specific examples below 5～12, preparation method is with embodiment 1, and its concrete technological parameter is shown in Table 1.
The technological parameter of table 1 embodiment 5～12
The present invention use embodiment 1 method prepare Subjective and Objective explosive crystal scanning electron microscopic picture as shown in Figure 1.Fig. 2
Shown in be the infrared spectrum of this crystal, it can be seen that the infrared absorption peak of CL-20 molecule and α-CL-20 in this crystal
In crystal, the infrared absorption peak of CL-20 molecule is basically identical, and at 2243.69cm-1And 2229.50cm-1Place is N2O molecule
Infrared absorption peak, shows N2O gas does enter in CL-20 crystal.Fig. 3 show the XRD spectra of this crystal, with CL-20's
The XRD spectra of α, β, ε, γ crystal formation is the most different.Fig. 4 show the DSC-TG curve of this crystal, N2The temperature model that O gas is weightless
Enclosing is 173.4 DEG C～180.7 DEG C, passes through N2The weight loss of O gas is calculated CL-20 and N in crystal2The mol ratio of O is 2:1.
Fig. 5, Fig. 6 show the In-situ Infrared spectrogram of this crystal, and between 170 DEG C～180 DEG C, the gaseous matter of release is N2O gas.
Fig. 7 show this crystal 180 DEG C, carry out Vacuum Heat stability experiment under the conditions of 1h, carry out characterizing to the gas of release and obtain
Mass spectrum, be at 44,30,28, to have obvious mass spectra peak in mass-to-charge ratio, illustrate that after being heated to 180 DEG C the gas of release is
N2O。
As can be seen here, the purpose of the present invention the most completely and is effectively achieved.Technical scheme is in reality
Executing and shown in example and illustrate, without departing substantially under described principle, embodiment can arbitrarily be revised.So, the present invention includes
Based on claim spirit and all variant embodiment of right.
Claims (10)
1. the preparation method of the Subjective and Objective explosive embedding micro-molecular gas, it is characterised in that by by N2O gas is continually fed into
In CL-20 solution, the method for solution recrystallization is utilized to make CL-20 and N2O cocrystallization, thus obtain CL-20 and N2O cocrystallization
Subjective and Objective explosive crystal.
The preparation method of the Subjective and Objective explosive of embedding micro-molecular gas the most according to claim 1, it is characterised in that its bag
Include following steps:
Step one: CL-20 is dissolved in liquid medium；
Step 2: at ambient pressure by N2O gas is passed through the solution of gained in step one, makes gas the most fully dissolve；
Step 3: use the method for solution recrystallization to make the solution supersaturation in step 2, be continually fed into N in the solution simultaneously2O
Gas, thus separate out crystal；
Step 4: being filtered by gained crystal in step 3, wash, be dried, gained solid is CL-20 and N2The host and guest of O cocrystallization
Body explosive.
The preparation method of the Subjective and Objective explosive of embedding micro-molecular gas the most according to claim 2, it is characterised in that described
Liquid medium refers to CL-20 and N2O all has certain deliquescent single or mixed solvent；When described liquid medium is molten for mixing
During agent, described mixed solvent is that non-alcohols solvent is obtained by mixing according to volume ratio 1:1～4 with alcohols solvent.
The preparation method of the Subjective and Objective explosive of embedding micro-molecular gas the most according to claim 3, it is characterised in that described
One or more in solvent selected from acetone, ethyl acetate, pentyl acetate, methanol, ethanol, isoamyl alcohol.
The preparation method of the Subjective and Objective explosive of embedding micro-molecular gas the most according to claim 2, it is characterised in that described
N in step 22O gas needs to be passed into bubbling in solution, makes gas and solution be fully contacted dissolving, and the bubbling time is at 10min
～between 1h；Described step one, two and/or three select 50～400r/min mechanical agitation or 50～600r/min magnetic force stir
Mix auxiliary to complete.
The preparation method of the Subjective and Objective explosive of embedding micro-molecular gas the most according to claim 2, it is characterised in that described
The method of solution recrystallization includes solvent-nonsolvent method, solution-evaporation.
The preparation method of the Subjective and Objective explosive of embedding micro-molecular gas the most according to claim 6, it is characterised in that use
During the crystallization of described solvent-nonsolvent method, non-solvent is slowly added dropwise or is quickly poured in CL-20 solution, non-solvent drop rate
For more than 0.1ml/min, non-solvent selected from petroleum ether, normal heptane, hexamethylene, chloroform, carbon tetrachloride, 1,2-bis-chloroethene
Alkane, 1,1,2-trichloroethane, toluene.
The preparation method of the Subjective and Objective explosive of embedding micro-molecular gas the most according to claim 6, it is characterised in that use
During solution-evaporation crystallization, solvent evaporation approach for by being continually fed in solution bubbling or being close to by air-flow by gas
Solution surface constantly purges, and takes away solvent along with the discharge of tail gas.
The preparation method of the Subjective and Objective explosive of embedding micro-molecular gas the most according to claim 6, it is characterised in that use
The supplementary means selecting solution cooling while solvent-nonsolvent method or solution-evaporation carrys out inducing solution crystallization, solution
Crystallization temperature controls between 0 DEG C～room temperature.
10. the Subjective and Objective explosive embedding micro-molecular gas, it is characterised in that use the claims 1～9 any one
Described method is prepared from.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106699488A (en) * | 2017-03-16 | 2017-05-24 | 中国工程物理研究院化工材料研究所 | Explosive recrystallization preparation method and device for explosive crystallization |
| CN106810409A (en) * | 2017-01-24 | 2017-06-09 | 中国工程物理研究院化工材料研究所 | Embedded Subjective and Objective explosive crystal based on gas displacement technology and preparation method thereof |
| CN106861234A (en) * | 2017-02-24 | 2017-06-20 | 中国工程物理研究院化工材料研究所 | The explosive crystal thinning methods of CL 20 based on anti-solvent ultrasonic extraction technology |
| CN107814671A (en) * | 2017-11-22 | 2018-03-20 | 中国工程物理研究院化工材料研究所 | A kind of thinning method of Hexanitrohexaazaisowurtzitane base Subjective and Objective explosive crystal |
| CN107903143A (en) * | 2017-11-21 | 2018-04-13 | 中国工程物理研究院化工材料研究所 | A kind of structure cell embeds the Subjective and Objective explosive preparation method of methanol molecules |
| CN110937960A (en) * | 2019-11-07 | 2020-03-31 | 中国工程物理研究院化工材料研究所 | Preparation method of host-guest explosive for in-situ self-assembly of ozone molecules |
| CN112266311A (en) * | 2020-10-21 | 2021-01-26 | 西北工业大学 | Preparation method of HMX/ANPyO eutectic crystal under condition of two-dimensional material limited-area doping |
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| CN106810409B (en) * | 2017-01-24 | 2018-09-25 | 中国工程物理研究院化工材料研究所 | Embedded Subjective and Objective explosive crystal based on gas displacement technology and preparation method thereof |
| CN106861234A (en) * | 2017-02-24 | 2017-06-20 | 中国工程物理研究院化工材料研究所 | The explosive crystal thinning methods of CL 20 based on anti-solvent ultrasonic extraction technology |
| CN106699488A (en) * | 2017-03-16 | 2017-05-24 | 中国工程物理研究院化工材料研究所 | Explosive recrystallization preparation method and device for explosive crystallization |
| CN106699488B (en) * | 2017-03-16 | 2018-08-14 | 中国工程物理研究院化工材料研究所 | A kind of explosive recrystallization preparation method and the device for explosive crystallization |
| CN107903143B (en) * | 2017-11-21 | 2019-09-17 | 中国工程物理研究院化工材料研究所 | A kind of structure cell embeds the Subjective and Objective explosive preparation method of methanol molecules |
| CN107903143A (en) * | 2017-11-21 | 2018-04-13 | 中国工程物理研究院化工材料研究所 | A kind of structure cell embeds the Subjective and Objective explosive preparation method of methanol molecules |
| CN107814671A (en) * | 2017-11-22 | 2018-03-20 | 中国工程物理研究院化工材料研究所 | A kind of thinning method of Hexanitrohexaazaisowurtzitane base Subjective and Objective explosive crystal |
| CN107814671B (en) * | 2017-11-22 | 2019-12-24 | 中国工程物理研究院化工材料研究所 | Method for refining hexanitrohexaazaisowurtzitane alkyl host-guest explosive crystals |
| CN110937960A (en) * | 2019-11-07 | 2020-03-31 | 中国工程物理研究院化工材料研究所 | Preparation method of host-guest explosive for in-situ self-assembly of ozone molecules |
| CN110937960B (en) * | 2019-11-07 | 2021-04-06 | 中国工程物理研究院化工材料研究所 | Preparation method of host-guest explosive for in-situ self-assembly of ozone molecules |
| CN112266311A (en) * | 2020-10-21 | 2021-01-26 | 西北工业大学 | Preparation method of HMX/ANPyO eutectic crystal under condition of two-dimensional material limited-area doping |
| CN112266311B (en) * | 2020-10-21 | 2021-10-22 | 西北工业大学 | Preparation method of HMX/ANPyO eutectic crystal under condition of two-dimensional material limited-area doping |
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