CN110342458B - Composite hydrogen storage material, preparation method and application thereof - Google Patents
Composite hydrogen storage material, preparation method and application thereof Download PDFInfo
- Publication number
- CN110342458B CN110342458B CN201910612688.1A CN201910612688A CN110342458B CN 110342458 B CN110342458 B CN 110342458B CN 201910612688 A CN201910612688 A CN 201910612688A CN 110342458 B CN110342458 B CN 110342458B
- Authority
- CN
- China
- Prior art keywords
- hydrogen storage
- storage material
- tih
- composite hydrogen
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
- C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
- C01B3/0078—Composite solid storage mediums, i.e. coherent or loose mixtures of different solid constituents, chemically or structurally heterogeneous solid masses, coated solids or solids having a chemically modified surface region
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a TiH1.971Doping with MgH2Composite hydrogen storage material, preparation method and application thereof, wherein the composite hydrogen storage material comprises TiH1.971Powder and MgH2，TiH1.971Accounting for 1-15 wt% of the total mass of the composite hydrogen storage material, by changing TiH1.971Research on MgH through ball milling time and doping ratio of powder2Hydrogen storage performance. The invention provides MgH2The composite material has good low-temperature hydrogen absorption and desorption dynamic performance and higher hydrogen absorption and desorption amount, has simple preparation method and low raw material cost, can be applied to portable power supply devices, hydrogen supply sources of fuel cells and the like, and is also suitable for large-scale development and application.
Description
Technical Field
The invention relates to a hydrogen storage material, in particular to a composite hydrogen storage material, a preparation method and application thereof.
Background
The energy is the power for the national economy development and is an important way for improving the living standard of people. The society is continuously making progress and developing, and the energy technology is continuously innovated and broken through, and each revolution is improving the living standard of people from the exploitation and use of fossil energy to the innovation and research of the current novel energy. However, due to technical limitations, fossil energy is also the energy on which society relies primarily, accounting for 80% of world energy usage. However, fossil energy consumption is increasing, and when energy is converted by the carnot cycle of a heat engine, it is inefficient, causes a great deal of energy loss, and generates CO2And nitrogen oxides, sulfides and the like cause pollution to the atmospheric environment and water quality. Therefore, the utilization of renewable energy sources to replace traditional fossil energy sources is a necessary trend in social development. Hydrogen energy is an ideal alternative energy source, and very large heat energy (1.25 multiplied by 10) can be generated after combustion5kJ heat can be obtained by burning 1kg hydrogen), and the combustion products are cleaner, thus being a high-quality productClean and renewable energy sources, no pollution and wide acquisition ways. The hydrogen energy is directly converted into the electric energy through the fuel cell, and the conversion process is not limited by Carnot cycle, so that the efficiency is improved.
However, the widespread use of hydrogen depends on whether it can be stored in a safe, efficient and inexpensive manner, and much attention has been paid and efforts have been made to research and develop new materials, new technologies, in connection with hydrogen storage. So far, liquid hydrogen storage technology, light high-pressure hydrogen storage container technology and metal hydride system hydrogen storage technology in hydrogen storage technology have been successfully operated on hydrogen-burning vehicles or electric vehicles. Compared with the liquid hydrogen storage technology and the light high-pressure hydrogen storage container technology, the metal hydride system hydrogen storage technology has good safety and high volume hydrogen storage density, so the hydrogen storage by using the metal hydride becomes a more attractive method.
Magnesium is a hydrogen storage material with strong hydrogen absorption capacity, and has rich resources and low cost. An effective method for improving the hydrogen storage performance of magnesium is to compound magnesium with other hydrogen storage compounds. MgH compared to other metal hydrides2Has a mass hydrogen storage density of up to 7.6 wt%, relatively inexpensive price, abundant reserves and good reversible hydrogen storage properties, but MgH2The hydrogen can be effectively absorbed and released only at the temperature of more than 300 ℃, the hydrogen releasing temperature is high, and MgH2The high thermodynamic stability and slow hydrogen absorption and desorption kinetics limit the practical application.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a composite hydrogen storage material, a preparation method and application thereof, and solves the problems that the existing material can not store hydrogen at low temperature and has low hydrogen storage efficiency.
The technical scheme is as follows: the composite hydrogen storage material comprises TiH1.971And MgH2Wherein TiH1.971Accounting for 1-15 wt% of the total mass of the composite hydrogen storage material.
The preparation method of the composite hydrogen storage material comprises the following steps:
(1) mix TiH1.971Mixing the powder with oleic acid, oleylamine and heptane at 300-500 rpContinuously ball-milling for 10-60 h at the rotating speed of m;
(2) cleaning and standing the ball-milled sample, removing supernatant, washing the residual solid, and dripping the residual solid into a liquid tube;
(3) centrifuging, drying and evacuating the washed sample to obtain TiH1.97Particles;
(4) the TiH obtained1.97Particles with MgH2And ball milling the mixture in inert atmosphere to obtain the composite hydrogen storage material.
Wherein TiH in the step (1)1.97The volume ratio of the oleic acid to the oleylamine to the heptane is 1: 0.33-1: 10-1: 20.
reducing the particles of the hydrogen storage material in a ball mill in order to increase the contact area of the steel balls with the hydrogen storage material, wherein TiH is adopted in the step (1)1.971And the mass ratio of the steel balls for ball milling is 1: 45-60.
In the step (2), a mixed solvent of oleic acid, oleylamine and heptane is adopted for cleaning, wherein TiH1.97The volume ratio of the oleic acid to the oleylamine to the heptane is 1: 0.33-1: 10-1: 50.
and (3) standing the sample in the step (2) for 10-30 min, washing the residual solid with alcohol for 5-10 times.
And (4) in the step (3), the centrifugal rotating speed is 8000-10000 rpm, and the time is 6-10 min.
The inert atmosphere in the step (4) is a high-purity argon atmosphere with the pressure of less than 0.1MPa, the ball milling time is 1-6 h, and the revolution speed of the ball mill is 300-500 rpm.
The composite hydrogen storage material or the composite hydrogen storage material prepared by the preparation method is applied as the hydrogen storage material.
Has the advantages that: : the composite hydrogen storage material has good low-temperature hydrogen absorption and desorption dynamic performance and higher hydrogen absorption and desorption amount, and can absorb hydrogen at room temperature; the heating hydrogen release experiment result shows that the doping is 5 wt% -c-TiH1.971The composite material of (2) starts to discharge hydrogen at 175 ℃, and when the temperature is increased to 300 ℃, 6.7 wt% of hydrogen can be discharged. In addition, the preparation method is simple and easy to operateSimple and convenient to operate, can be prepared by utilizing a mechanical ball milling technology at room temperature, and is TiH1.971The preparation is simple and convenient, the operation is easy, the raw material cost is low, and the method can be applied to portable power supply devices, hydrogen supply sources of fuel cells and the like and is also suitable for large-scale development and application.
Drawings
FIG. 1 is ball milling time vs. MgH2Influence of the temperature rise and hydrogen release performance of the hydrogen storage material;
FIG. 2 is doping ratio vs. MgH2Influence of the temperature rise and hydrogen release performance of the hydrogen storage material;
FIG. 3 is MgH2/5wt％-c-TiH1.971The temperature rise hydrogen release curve of the composite hydrogen storage material (the temperature rise rate is 2 ℃/min);
FIG. 4 is a doped catalyst TiH1.971XRD spectrogram (2 theta is 20-80 DEG) of the material
FIG. 5 is MgH2/5wt％-c-TiH1.971The temperature rise hydrogen absorption curve of the composite hydrogen storage material (the temperature rise rate is 1 ℃/min);
FIG. 6 is a doped catalyst TiH1.971The constant temperature hydrogen discharge curve of the composite hydrogen storage material;
FIG. 7 is a doped catalyst TiH1.971An XRD spectrogram (2 theta is 20-80 degrees) of constant-temperature hydrogen desorption of the composite hydrogen storage material.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Example 1
Study of ball milling time vs. TiH1.971Improvement of MgH2Influence of temperature-rising hydrogen-releasing performance:
first, TiH is prepared1.97And (3) particle: mix TiH1.971Mixing the powder with oleic acid, oleylamine and heptane, TiH1.971The volume ratio of the oleic acid to the oleylamine to the heptane is 1: 0.33-1: 10-1: 20, continuously ball-milling for 10-60 h at the rotating speed of 300-500 rpm, and TiH1.971The mass ratio of the steel balls to the steel balls for ball milling is 1: 45-60; cleaning the ball-milled sample, standing, removing supernatant, washing the rest solid, dropping into a liquid tube, and cleaning with mixed solvent of oleic acid, oleylamine and heptane, wherein the oleic acid, oleylamine and heptane are used as solventThe volume ratio of the alkane is 1: 0.33-1: 10-1: 50, in order to prevent the heptane from being too much in amount and being difficult to be fully mixed with the material, the dripping is divided into two times, after each time of dripping, the materials are mixed by shaking, sucked out and dripped for the second time, and finally, the oleic acid and the oleylamine are dripped into a liquid pipe; centrifuging, drying and evacuating the washed sample to obtain TiH1.97Particles;
5 wt% of TiH1.971Mixing 95 wt% of MgH2Ball milling is carried out. And (3) according to the ball material ratio of 40: 1, 40g of balls are placed in a ball mill pot, 1g of sample is placed, where TiH in each pot1.971The ball milling time is different, the ball milling tank is alternately operated for 30min in a positive and negative way within the range of 10-60 h at the rotating speed of 450rpm, but the ball milling tank needs to be stopped for 6min during the alternation. After ball milling for two hours, the ball milling jar was removed and the agglomerated sample in the jar was triturated. Then, after ball milling for two hours, the sample is taken out, sealed and stored, and put into a glove box to prevent oxidation.
And respectively weighing 150-250 mg of catalyst composite system samples doped with different ball milling times in a set box. After the sample was placed in the apparatus, it was evacuated, drained, and the test started by programming to a temperature of 450 ℃ at a rate of 2 ℃/min.
According to the method, TiH is ball-milled for 10-60 h1.971The powder hydrogen evolution curve is shown in FIG. 1, and comparison shows that TiH is produced by changing the ball milling time1.971For MgH2The hydrogen releasing performance is obviously different, the ball milling time is increased, and MgH can be obviously reduced2The initial hydrogen release temperature can increase the hydrogen release rate and obtain TiH1.971The ball milling time with the optimal catalytic activity was 60 h.
Example 2
Study of doping ratio vs. TiH1.971Improvement of MgH2Influence of temperature-rising hydrogen-releasing performance:
ball-milling for 60h of TiH1.971The proportion of the MgH is 1 to 15 weight percent2Mixing and ball milling. And (3) according to the ball material ratio of 40: 1, 2g of sample are placed, likewise marked, and the ball mill jar is run alternately for 30min at a speed of 450rpm, but is stopped for 6min during the alternation. After ball milling for two hours, mashing the agglomerated sample in the jar; however, the device is not suitable for use in a kitchenAfter ball milling for two hours, the sample was taken out and stored in a glove box in a sealed manner.
150-250 mg of catalyst composite system sample doped with 1-15 wt% is weighed in a set box respectively. After the sample was placed in the apparatus, it was evacuated, drained, and the test started by programming to a temperature of 450 ℃ at a rate of 2 ℃/min.
The results of comparison of hydrogen evolution curves of the composite materials doped in different proportions shown in FIG. 2 show that different catalytic effects are caused by different doping proportions, and 1-5 wt% of TiH is doped1.971In addition, along with the increase of the doping proportion, the initial hydrogen release temperature is obviously reduced, the hydrogen release rate is also increased, and the dynamic performance is improved. Doping with 7-15 wt% of TiH1.971In the middle, the initial hydrogen release temperature tends to be increased along with the increase of the proportion, but the initial hydrogen release temperature is higher than that of pure MgH2The initial hydrogen evolution temperature is significantly reduced. TiH1.971The doping proportion is optimized to obtain MgH with obviously improved performance2+5wt％-c-TiH1.971Composite system (c represents ball milling for 60 h).
FIG. 3 is MgH2/5wt％-c-TiH1.971The temperature rising hydrogen desorption curve of the composite hydrogen storage material from room temperature to 450 ℃, as can be seen from figure 3, MgH2The/5 wt% -c-Ti composite hydrogen storage material begins to release hydrogen at 175 ℃, can release 6.7 wt% of hydrogen at 300 ℃, can obviously reduce the hydrogen release temperature and improve the hydrogen release kinetic performance.
To the prepared doped with 5 wt% -c-TiH1.971(c represents a ball mill for 60h) of MgH2The XRD phase of the material is characterized. This characterization was performed with an X-ray diffractometer.
The XRD characterization result is shown in FIG. 4, which shows that the main phase in the material is still MgH2However, the peak broadening indicates MgH2The grain size is greatly reduced; simultaneously, the existence of simple substance Mg indicates the prepared MgH2The hydrogen content of (a) does not reach an ideal state; in addition, TiH appears1.971The peak of (a), however, is very small, indicating TiH1.971There is a stereotype state.
Testing of MgH2/5wt％-c-TiH1.971The temperature rise hydrogen absorption performance of the composite material is as follows:
taking 150-250 mg of a sample in a glove box, putting the sample into a device, evacuating, detecting leakage, starting the test, and raising the temperature to 450 ℃ at the speed of 1 ℃/min through a program. And then carrying out an empty curve test, putting a steel ball into the device, evacuating, detecting leakage, starting the test, and raising the temperature to 450 ℃ at the speed of 1 ℃/min through a program.
The hydrogen absorption performance of the composite hydrogen storage material is measured by adopting a constant volume-pressure difference method. From FIG. 5, pure MgH2Hydrogen absorption is started at 150 ℃, and 7.33 wt% of hydrogen can be absorbed when the temperature is raised to 380 ℃, which approaches to the theoretical hydrogen release amount; MgH2+5wt％-c-TiH1.971Can absorb hydrogen at room temperature, and the hydrogen absorption trend tends to be gentle when the temperature is raised to 177 ℃, and the TiH is doped1.971The hydrogen absorption temperature can be obviously reduced, the hydrogen absorption rate is improved, and the hydrogen absorption dynamic performance is improved.
Testing of MgH2/5wt％-c-TiH1.971The constant temperature hydrogen release performance of the composite material is as follows:
taking 150-250 mg of a sample in a glove box, putting the sample into a device, evacuating, detecting leakage, starting testing, introducing 32-33 bar of hydrogen, raising the temperature to 300 ℃ at the speed of 5 ℃/min through a program, and preserving the temperature for 85 min. And opening a vacuum pump, deflating to below 7bar, closing the reactor, starting evacuation for 10s, opening for 7s, performing low-pass operation for 8s, opening for expansion, closing evacuation for 9s, closing the reactor for 10s, and then performing a recording test.
The constant-temperature hydrogen release performance of the composite hydrogen storage material is measured by adopting a constant volume-pressure difference method. As shown in FIG. 6, after the hydrogen is discharged at a constant temperature of 300 ℃, the hydrogen discharge amount reaches 6.34 wt% in 10min, and the hydrogen discharge power performance is obviously improved.
For the prepared doped catalyst TiH1.971MgH of2The composite material is subjected to constant-temperature hydrogen desorption and XRD phase characterization. This characterization was performed with an X-ray diffractometer, and the results are shown in figure 7,
after constant-temperature hydrogen release at 300 ℃, XRD (X-ray diffraction) characterization results show that the main phase of the material is Mg, but a spectrum peak is narrowed, which shows that the particle size scale of Mg is improved; with MgH at the same time2The presence of MgH indicates2The hydrogen is not completely discharged to reach the ideal hydrogen discharge(ii) a In addition, TiH appears1.971The peak of (a), however, is very small, indicating TiH1.971There is a stereotype state.
Claims (8)
1. A composite hydrogen storage material is characterized by comprising TiH1.971And MgH2Composition of, wherein TiH1.971The composite hydrogen storage material accounts for 1-5 wt% of the total mass of the composite hydrogen storage material, and the preparation method comprises the following steps:
(1) mix TiH1.971Mixing the powder with oleic acid, oleylamine and heptane, and continuously ball-milling at the rotating speed of 300-500 rpm for 10-60 hours;
(2) cleaning and standing the ball-milled sample, removing supernatant, washing the residual solid, and dripping the residual solid into a liquid tube;
(3) centrifuging, drying and evacuating the washed sample to obtain TiH1.97Particles;
(4) the TiH obtained1.97Particles with MgH2And ball milling the mixture in inert atmosphere to obtain the composite hydrogen storage material.
2. The composite hydrogen storage material of claim 1, wherein the TiH in step (1)1.971The volume ratio of the oleic acid to the oleylamine to the heptane is 1: 0.33-1: 10-1: 20.
3. the composite hydrogen storage material of claim 2, wherein the TiH in step (1)1.971And the mass ratio of the steel balls for ball milling is 1: 45-60.
4. The composite hydrogen storage material of claim 2, wherein the step (2) is performed by washing with a mixed solvent of oleic acid, oleylamine and heptane, wherein the volume ratio of oleic acid, oleylamine and heptane is 1: 0.33-1: 10-1: 50.
5. the composite hydrogen storage material according to claim 2, wherein the sample in the step (2) is allowed to stand for 10 to 30min, and the remaining solid is washed with alcohol for 5 to 10 times.
6. The composite hydrogen storage material according to claim 2, wherein the centrifugation speed in step (3) is 8000-10000 rpm for 6-10 min.
7. The composite hydrogen storage material of claim 2, wherein the inert atmosphere in the step (4) is a high-purity argon atmosphere with a pressure of less than 0.1MPa, the ball milling time is 1-6 h, and the revolution speed of the ball mill is 300-500 rpm.
8. Use of a composite hydrogen storage material according to any one of claims 1 to 7 as a hydrogen storage material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612688.1A CN110342458B (en) | 2019-07-09 | 2019-07-09 | Composite hydrogen storage material, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612688.1A CN110342458B (en) | 2019-07-09 | 2019-07-09 | Composite hydrogen storage material, preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110342458A CN110342458A (en) | 2019-10-18 |
| CN110342458B true CN110342458B (en) | 2021-04-06 |
Family
ID=68178594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910612688.1A Active CN110342458B (en) | 2019-07-09 | 2019-07-09 | Composite hydrogen storage material, preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110342458B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533086B (en) * | 2020-05-11 | 2023-12-01 | 中国科学院长春应用化学研究所 | Short-flow preparation method for rapidly activating hydrogen storage alloy by utilizing hydrogen-containing compound |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467048A (en) * | 2018-12-27 | 2019-03-15 | 江苏科技大学 | Composite hydrogen storage material and its preparation method and application |
-
2019
- 2019-07-09 CN CN201910612688.1A patent/CN110342458B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467048A (en) * | 2018-12-27 | 2019-03-15 | 江苏科技大学 | Composite hydrogen storage material and its preparation method and application |
Non-Patent Citations (2)
| Title |
|---|
| Enhanced hydrogen storage properties of magnesium by the synergic catalytic effect of TiH1.971 and TiH1.5 nanoparticles at room temperature;Liu, Tong, et al.;《Journal of Power Sources》;20140520;第69-77页 * |
| The enhanced de/re‐hydrogenation performance of MgH2 with TiH2 additive;Jangir, Mukesh, et al.;《International Journal of Energy Research》;20171005;第1139-1147页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110342458A (en) | 2019-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113896167B (en) | Composite hydrogen storage material, preparation method and application thereof | |
| CN102030313B (en) | Organic matter and ammonia borane compounded hydrogen storage material and preparation method thereof | |
| Li et al. | Crystalline TiB 2: an efficient catalyst for synthesis and hydrogen desorption/absorption performances of NaAlH 4 system | |
| CN105132770A (en) | Mg2Ni-based ternary Mg-Ni-Cu reversible hydrogen storage material and preparation method thereof | |
| CN110342458B (en) | Composite hydrogen storage material, preparation method and application thereof | |
| CN102205412A (en) | Fluoridation modifying method for MLNi3.5Co0.0Mn0.4Al0.5 hydrogen storage alloy | |
| CN116726970A (en) | Sulfur-nitrogen doped MXene hydrogen storage material catalyst, hydrogen storage material containing catalyst and preparation method | |
| CN103879957B (en) | Catalyst-doped magnesium-based hydrogen storage material and preparation | |
| CN109012664B (en) | Amorphous carbon supported nano metal particle catalyst and preparation method and application thereof | |
| CN108097947B (en) | High-capacity Mg-Zn-Ni ternary hydrogen storage alloy and preparation method thereof | |
| CN107316974B (en) | Preparation method of nano-silver composite lithium iron phosphate cathode material | |
| CN116101974A (en) | Aluminum hydride hydrogen storage material doped with polymer and preparation method thereof | |
| CN112850640A (en) | Preparation method of metal organic framework doped magnesium-based hydride | |
| CN113769750B (en) | Simple preparation method of NiO@C nano powder and application of NiO@C nano powder in hydrogen storage material | |
| CN102502488B (en) | Method for improving hydrogen storage property of lithium borohydride | |
| CN114906801B (en) | MgH (MgH) 2 @Fe-ZIF hydrogen storage material and preparation method thereof | |
| CN113582132A (en) | Composite hydrogen storage material and preparation method thereof | |
| CN1272460C (en) | RE-Mg-Ni series three-element or more system hydrogen-storage alloy and amorphous preparing method thereof | |
| CN102618761A (en) | Magnesium-based hydrogen storage alloy material and preparation method thereof | |
| CN112265958B (en) | Composite hydrogen storage material and preparation method thereof | |
| CN102515095B (en) | Metal manganese oxide-loaded ammonia borane hydrogen storage material, and preparation method thereof | |
| CN102242286A (en) | Method for preparing AB5-AB3 composite alloy | |
| CN115448252A (en) | Magnesium-based solid hydrogen storage material with liquid phase regulation and control effect and preparation method thereof | |
| CN112609102B (en) | Preparation method of magnesium-based hydrogen storage material coated by rare earth oxide and nano nickel-boron | |
| CN104961099A (en) | Preparation method for phosphor-adulterating coupling nanometer-confined Mg-based hydrogen storage material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20191018 Assignee: Center for technology transfer Jiangsu University of Science and Technology Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021980006173 Denomination of invention: Composite hydrogen storage material, preparation method and application thereof Granted publication date: 20210406 License type: Common License Record date: 20210714 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Center for technology transfer Jiangsu University of Science and Technology Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021980006173 Date of cancellation: 20210826 |
|
| EC01 | Cancellation of recordation of patent licensing contract |