CN106976840B - A kind of Carbon foam load magnesium ambrose alloy composite hydrogen storage material and preparation method thereof - Google Patents
A kind of Carbon foam load magnesium ambrose alloy composite hydrogen storage material and preparation method thereof Download PDFInfo
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- CN106976840B CN106976840B CN201710216804.9A CN201710216804A CN106976840B CN 106976840 B CN106976840 B CN 106976840B CN 201710216804 A CN201710216804 A CN 201710216804A CN 106976840 B CN106976840 B CN 106976840B
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- 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
- C01B3/0031—Intermetallic compounds; Metal alloys; Treatment thereof
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- 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
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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
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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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
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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- 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
Abstract
The invention discloses a kind of foamy carbons to load magnesium ambrose alloy composite hydrogen storage material, is made of the copper of the carbon of 50~70 mass fractions, the magnesium of 20~40 mass fractions, the nickel of 5~10 mass fractions and 5~10 mass fractions.Preparation method the invention also discloses Carbon foam load magnesium ambrose alloy composite hydrogen storage material includes preparation Carbon foam carrier material particles, magnesium monel powder is prepared, recycles prepared Carbon foam carrier material particles and prepared magnesium monel powder that above-mentioned hydrogen storage material is made.The present invention is based on Carbon foam skeleton and reticulated porous structures and various metals alloy are supported, unobstructed channel is provided for the diffusion and absorption of hydrogen storage process gas, the composite material of formation has both the performance of Carbon foam Yu multicomponent alloy hydrogen storage material, hydrogen storage capability with higher, the raw material sources of hydrogen storage material of the present invention are in coal tar asphalt and magnesium monel, preparation process is simple, controllable, and cost is very low.
Description
Technical field
The present invention relates to solid hydrogen storage material fields, and in particular to a kind of Carbon foam load magnesium ambrose alloy composite hydrogen storage material and
Preparation method.
Background technique
Hydrogen Energy is one of great strategy demand towards the country, and in the development process of Hydrogen Technology, the storage of hydrogen is to Guan Chong
The link wanted, solid-state hydrogen storage have been the focus and emphasis of domestic and international Hydrogen Energy research, coordinating metal hydride hydrogen storage and alloy hydrogen storage
It is main method.Coordinating metal hydride is usually by alkalies and alkaline earth [AlH4]-、[NH2]-、[BH4]-wait hydrogenation
Object anion composition is exactly that hydrogen storage content is big with the maximum difference of alloy, the higher suction hydrogen discharging temperature of need, circular response invertibity compared with
Difference, coordinating metal hydride hydrogen release process is not that a step is completed, more difficult to control in practical applications yet.Hydrogen bearing alloy is before relatively having
The hydrogen storage material on way, so far, hydrogen bearing alloy system include: magnesium system, zirconium, titanium system, Rare Earth etc., to reach and actually answer
With, it is necessary to have several requirements: (1) anti-poisoning, highly selective hydrogen storage；(2) hydrogen storage rate is fast；(3) there should be high hydrogen storage
Capacity；(3) can be under the conditions of being higher than hydrogen storage temperature, quick heating desorption releases pure hydrogen；(5) polycyclic hydrogen storage, release hydrogen are anti-
The high activity and stability used again.Hydrogen molecule is diffused into the surface of hydrogen storage substance, and by the catalysis of surface metal, H-H is covalent
Key fracture, hydrogen atom is attached to the surface of hydrogen storage metal alloy, and is spread with the state of atom into metal lattice, forms metal
The solid solution (α phase) of atom and hydrogen atom, with saturation of the hydrogen atom in lattice, metallic atom reacts with hydrogen atom,
Phase transformation generates metal hydride β phase).Hydrogen bearing alloy generally consists of two parts: part A and part B.Part A and H have certain
Affinity interaction, it determines hydrogen storage content；The effects of part B then plays adjustment pressure, inhales hydrogen release power.
Magnesium microalloying is most promising a kind of hydrogen storage material, such as: Mg2Co、Mg26Cu、MgNiCuLax、
MgH2- 5%Mg, MgH-5%V, MgNiH4、Mg2FeH5Preferable hydrogen sucking function is shown, because of Mg's cheap, density
Small, and hydrogen storage content is high, theoretical hydrogen storage content can reach 7.6wt%, but inhale hydrogen and to release hydrogen discharging rate slower, poisoning is easy, to meet
Practical application will be often modified, and common method of modifying is nanosizing first, and since partial size reduces, specific surface area increases, and be led
It causes hydrogen atom to be more easier to spread, penetrate into material internal on hydrogen bearing alloy surface, while shortening hydrogen atom across hydride
Zeng Changcheng diffusion, so that improving it inhales hydrogen release power.Tong Liu et al. people in Journal of Hydrogen Energy,
2014,39 (32): 18273-18279 research makes the partial size of Mg be reduced to 200nm using hydrogen plasma arc process (HPMR),
LaNi5Partial size be reduced to 25nm, then by these particles with Mg-5%LaNi5Ratio mixing, improve suction hydrogen desorption kinetics
Performance, but preparation process is complicated, and cost is very high, the hydridization of this particle not of the same race, makees to the anti-impurity performance of material hydrogen storage is improved
With also less, hydrogen storage material is easy poisoning and deactivation, and service life is not high.Hu Xiuying etc. is in functional material the 3rd phase volume 39 in 2008
The page number: 424-525 studies high-energy ball milling reaction method in hydrogen atmosphere, magnesium carbon composite hydrogen storage material is prepared for, when having studied ball milling
Between influence to material particle size, crystal structure and hydrogen discharging performance because hydrogen storage property does not have greatly using common carbon powder material
The raising of amplitude.Carbon-based material includes: the storage of active carbon, Carbon foam, Graphite Nano Fiber, carbon nano-fiber and carbon nanotube etc.
Hydrogen capacity is extremely limited, and preparation process includes multiple steps, and cost is very high.Good solid hydrogen storage material is designed to have to
Guarantee it to the good mass transfer of hydrogen, reaction and absorption property, internal good heat transmitting is most important, usual solid storage
Heat transference efficiency between the thermal coefficient and alloy powder bed and reactor outer wall of hydrogen material is usually very low.Therefore, make
It is frequently necessary to when with metal hydrogen-absorbing material hydrogen storage using some heat transfer enhancement technologies.However, the hydrogen storage process occurred at present is strong
Change heat transfer technology Shortcomings: low efficiency, at high cost or be difficult to realize.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of high-performance foam charcoal loads magnesium nickel
Copper composite hydrogen storage material and preparation method thereof.
The present invention provides a kind of Carbon foams to load magnesium ambrose alloy composite hydrogen storage material, has the feature that, by following group
Part composition: the carbon of 50~70 mass fractions, the magnesium of 20~40 mass fractions, the nickel of 5~10 mass fractions, 5~10 mass fractions
Copper.
The present invention provides a kind of preparation methods for preparing above-mentioned Carbon foam load magnesium ambrose alloy composite hydrogen storage material, have this
The feature of sample, comprising the following steps:
A. 500~1000 grams of coal tar asphaltes are crushed to 80~120 mesh, addition accounts for the mass percent of coal tar asphalt
10%~30% polyethylene glycol, addition account for the azodicarbonamide of the mass percent 10%~30% of coal tar asphalt, mix
It is added to high-temperature high-pressure reaction kettle after closing stirring, under 3~5 atmospheric pressures and nitrogen atmosphere, with 5~10 DEG C/min heating
To 350~450 DEG C, make its isothermal reaction and foam, after 5~10 hours, it is raw to obtain primary Carbon foam for cooled to room temperature
Primary Carbon foam raw material are put into carbide furnace, under normal pressure nitrogen atmosphere, are warming up to 1000~1200 with 40~70 DEG C/min by material
DEG C, then constant temperature carbonization 2~4 hours, natural cooling obtains Carbon foam carrier material, then is ground into the Carbon foam load of 80~100 mesh
Body material granule；
B. take respectively the magnesium powder, 5%~10% that account for the mass percent 10%~30% of coal tar asphalt nickel powder, 5%
~10% copper powder melts under conditions of argon atmosphere, 3~5 atmospheric pressure in 1200~1500 DEG C of high-temperature smelting pots
1~3 hour, natural cooling obtained magnesium monel, then was ground into the magnesium monel powder of 200 mesh；
C. magnesium monel powder made from step b is added in Carbon foam carrier material particles made from step a,
Under conditions of hydrogen shield atmosphere, 200~400 DEG C of temperature, 3~5 atmospheric pressure, using ball mill grinding 3~6 hours, that is, make
It obtains Carbon foam and loads magnesium ambrose alloy composite hydrogen storage material.
The action and effect of invention
Related Carbon foam loads the preparation method of magnesium ambrose alloy composite hydrogen storage material according to the present invention: first preparing Carbon foam
Particle and magnesium monel powder, then using Carbon foam particle as carrier material, under hydrogen protection, will have to hydrogen and absorb
The magnesium monel powder mixer tool of effect loads, and the Carbon foam of formation loads magnesium ambrose alloy composite hydrogen storage material.Because of preparation
It is added to AC foaming agent (azodicarbonamide) during Carbon foam, the Carbon foam obtained after high-pressure foam has more mutual
The open bubble of connection, more laminated construction and crackle, and the Carbon foam of reticulated porous structures is conducive to strengthen the gas for inhaling hydrogen
Gu Surface Physical Chemistry acts on, improves and inhale hydrogen process heat and mass transfer efficiency；Secondly because preparation Carbon foam process is fast
Speed heating, generates internal expansion, and gas quickly overflows, and reaches reaming effect, and the increase of hole is conducive to as hydrogen storage Process Gas
The diffusion and absorption of body provide unobstructed channel；Furthermore because practical hydrogen process of inhaling is exothermic reaction, and the height of Carbon foam is led
Hot property, low-density, lower thermal expansion coefficient, preferable mechanical performance, so, Carbon foam has excellent in hydrogen storage applications
Gesture.Therefore, Carbon foam of the invention load magnesium ambrose alloy composite hydrogen storage material had not only had the hydrogen storage property of Carbon foam but also had had magnesium nickel
Copper alloy hydrogen storage material performance.
According to the present invention raw material sources needed for the preparation of related Carbon foam load magnesium ambrose alloy composite hydrogen storage material in
Coal tar asphalt and magnesium monel, preparation process is simple, controllable, and cost is very low, and the hydrogen storage material being prepared is conducive to
Transport hydrogen, stability is good, can store for a long time, be not susceptible to secondary pollution.Therefore, Carbon foam according to the present invention loads magnesium
Ambrose alloy composite hydrogen storage material and preparation method thereof has the characteristics that cheap practical, can be widely used in and needs to store hydrogen
Petrochemical industry, thermodynamic power, energy source and power and relevant industries and enterprise.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example is applied to be specifically addressed a kind of Carbon foam load magnesium ambrose alloy composite hydrogen storage material and preparation method thereof of the invention.
In an embodiment of the present invention to laboratory sample carry out correlation analysis test, comprising: elemental analysis, density analysis,
Transmission electron microscope (TEM) carries out partial size and morphology analysis, BET method of testing carry out specific surface area test and the test of hydrogen storage property.
Wherein, partial size and its morphology analysis are carried out to laboratory sample using mono- 2000EX type transmission electron microscope of JEM；Using the U.S.
The specific surface area of 2405 adsorption instrument of ASAP (BET method) measurement experiment sample；It is carried out using TherMax500 high pressure thermogravimetric analyzer
The hydrogen storage property of laboratory sample is tested: being taken laboratory sample 20mg, is passed through in entrance using argon gas as the gaseous mixture of carrier gas hydrogen 5%
Body carries out inhaling hydrogen operation at 200-300 DEG C of temperature, 3 atmospheric pressures, and the hydrogen storage capability surveyed is after suction hydrogen reaches saturation
Hydrogen account for Carbon foam load magnesium ambrose alloy composite hydrogen storage material mass percent.
<embodiment one>
A. 500 grams of coal tar asphaltes are taken to be crushed to 100 mesh, addition accounts for the poly- second two of coal tar asphalt mass percent 20%
Alcohol, addition account for the AC foaming agent (azodicarbonamide) of coal tar asphalt mass percent 30%, are added to height after mixing
Warm autoclave is heated to 450 DEG C with 5 DEG C/min, makes its isothermal reaction simultaneously under 3 atmospheric pressures and nitrogen atmosphere
Foaming.After 5h, room temperature is naturally cooled to, primary Carbon foam raw material are obtained.Primary Carbon foam raw material are put into carbide furnace,
Under normal pressure nitrogen atmosphere, 1000 DEG C is warming up to 40 DEG C/min, then constant temperature is carbonized 4 hours, natural cooling, obtains Carbon foam load
Body material, then it is ground into the Carbon foam carrier material particles of 80 mesh.
B. it takes respectively and accounts for 30% magnesium powder of coal tar asphalt mass percent, 10% nickel powder, 10% copper powder, protect gas in argon gas
Under conditions of atmosphere, 3 atmospheric pressure, in melting 3 hours in 1300 DEG C of high-temperature smelting pots, natural cooling obtains magnesium monel, then powder
It is broken into 200 mesh magnesium monel powder.
C. magnesium monel powder made from step b is added in Carbon foam carrier material particles made from step a,
Under conditions of hydrogen shield atmosphere, 400 DEG C of temperature, 3 atmospheric pressure, using ball mill grinding 5 hours, Carbon foam load is obtained
Magnesium ambrose alloy composite hydrogen storage material.
The load magnesium ambrose alloy composite hydrogen storage material of Carbon foam obtained by step c is taken as laboratory sample and carries out correlation analysis.
Determination of elemental analysis laboratory sample is the nickel and 5 of the carbon of 65 mass fractions, the magnesium of 23 mass fractions, 7 mass fractions
The copper of mass fraction forms.
The density that density analysis obtains laboratory sample is 0.39kg/m3。
Tem analysis obtains the grain diameter of laboratory sample about between 5~20nm.
The specific surface area of BET measurement experiment sample is 890m2/g。
The measurement experiment sample of hydrogen storage property absorbs hydrogen under 250 DEG C and 3 atmospheric pressure, is saturated in 300 minutes suction hydrogen
Hydrogen storage capability afterwards is 5.3%.
<embodiment two>
A. 800 grams of coal tar asphaltes are taken to be crushed to 100 mesh, addition accounts for the poly- second two of coal tar asphalt mass percent 15%
Alcohol, addition account for the AC foaming agent (azodicarbonamide) of coal tar asphalt mass percent 20%, are added to height after mixing
Warm autoclave is heated to 400 DEG C with 8 DEG C/min, makes its isothermal reaction simultaneously under 4 atmospheric pressures and nitrogen atmosphere
Foaming.After 3 hours, room temperature is naturally cooled to, primary Carbon foam raw material are obtained.Primary Carbon foam raw material are put into carbide furnace,
Under normal pressure nitrogen atmosphere, 1000 DEG C is warming up to 70 DEG C/min, then constant temperature is carbonized 5 hours, natural cooling, obtains Carbon foam load
Body material, then it is ground into the Carbon foam carrier material particles of 80 mesh.
B. it takes respectively and accounts for 20% magnesium powder of coal tar asphalt mass percent, 8% nickel powder, 8% copper powder, protect gas in argon gas
Under conditions of atmosphere, 4 atmospheric pressure, melting 4 hours in 1300 DEG C of high-temperature smelting pots of Yu, natural cooling obtains magnesium monel, then
It is ground into 200 mesh magnesium monel powder.
C. magnesium monel powder made from step b is added in Carbon foam carrier material particles made from step a,
Under conditions of hydrogen shield atmosphere, 300 DEG C of temperature, 5 atmospheric pressure, using ball mill grinding 4 hours, Carbon foam load is obtained
Magnesium ambrose alloy composite hydrogen storage material.
The load magnesium ambrose alloy composite hydrogen storage material of Carbon foam obtained by step c is taken as laboratory sample and carries out correlation analysis.
Determination of elemental analysis laboratory sample is the nickel and 8 of the carbon of 55 mass fractions, the magnesium of 28 mass fractions, 9 mass fractions
The copper of mass fraction forms.
The density that density analysis obtains laboratory sample is 0.25kg/m3。
Tem analysis obtains the grain diameter of laboratory sample about between 10~40nm.
The specific surface area of BET measurement experiment sample is 670m2/g。
The measurement experiment sample of hydrogen storage property absorbs hydrogen under 300 DEG C and 3 atmospheric pressure, is saturated in 300 minutes suction hydrogen
Hydrogen storage capability afterwards is 5.1%.
<embodiment three>
A. 1000 grams of coal tar asphaltes are taken to be crushed to 120 mesh, addition accounts for the poly- second of coal tar asphalt mass percent 30%
Glycol, addition account for the AC foaming agent (azodicarbonamide) of coal tar asphalt mass percent 15%, are added to after mixing
High-temperature high-pressure reaction kettle is heated to 400 DEG C with 10 DEG C/min, makes its isothermal reaction under 3 atmospheric pressures and nitrogen atmosphere
And it foams.After 5h, room temperature is naturally cooled to, primary Carbon foam raw material are obtained.Primary Carbon foam raw material are put into carbonization
Furnace is warming up to 1200 DEG C under normal pressure nitrogen atmosphere with 50 DEG C/min, then constant temperature is carbonized 4 hours, natural cooling obtains foam
High-area carbon material, then it is ground into the Carbon foam carrier material particles of 80 mesh.
B. it takes respectively and accounts for 30% magnesium powder of coal tar asphalt mass percent, 8% nickel powder, 5% copper powder, in argon atmosphere
Under, 3 atmospheric pressure melt 5 hours in 1200 DEG C of high-temperature smelting pots, and natural cooling obtains magnesium monel, then is ground into 200
Mesh magnesium monel powder.
C. magnesium monel powder made from step b is added in Carbon foam carrier material particles made from step a,
Under conditions of hydrogen shield atmosphere, 350 DEG C of temperature, 5 atmospheric pressure, using ball mill grinding 6 hours, Carbon foam load is obtained
Magnesium ambrose alloy composite hydrogen storage material.
The load magnesium ambrose alloy composite hydrogen storage material of Carbon foam obtained by step c is taken as laboratory sample and carries out correlation analysis.
Determination of elemental analysis laboratory sample is the nickel and 4 of the carbon of 63 mass fractions, the magnesium of 26 mass fractions, 7 mass fractions
The copper of mass fraction forms.
The density that density analysis obtains laboratory sample is 0.32kg/m3。
Tem analysis obtains the grain diameter of laboratory sample about between 10~30nm.
The specific surface area of BET measurement experiment sample is 1020m2/g。
The measurement experiment sample of hydrogen storage property absorbs hydrogen under 280 DEG C and 3 atmospheric pressure, is saturated in 300 minutes suction hydrogen
Hydrogen storage capability afterwards is 6.2%.
The action and effect of embodiment
The preparation method of the load magnesium ambrose alloy composite hydrogen storage material of the Carbon foam according to involved in the present embodiment: foam is first prepared
Charcoal particle and magnesium monel powder, then using Carbon foam particle as carrier material, under hydrogen protection, will have to hydrogen and inhale
The magnesium monel powder mixer tool of adduction loads, and the Carbon foam of formation loads magnesium ambrose alloy composite hydrogen storage material.Because of system
It is added to AC foaming agent (azodicarbonamide) during standby Carbon foam, the Carbon foam obtained after high-pressure foam has more multiphase
Intercommunicated open bubble, more laminated construction and crackle, and the Carbon foam of reticulated porous structures is conducive to strengthen suction hydrogen
Gas-solid surface physics chemical action improves and inhales hydrogen process heat and mass transfer efficiency；Secondly because preparation Carbon foam process
It being rapidly heated, generates internal expansion, gas quickly overflows, reach reaming effect, and the increase of hole is conducive to as hydrogen storage process
The diffusion and absorption of gas provide unobstructed channel；Furthermore because practical hydrogen process of inhaling is exothermic reaction, and the height of Carbon foam
Heating conduction, low-density, lower thermal expansion coefficient, preferable mechanical performance, so, Carbon foam has excellent in hydrogen storage applications
Gesture.Therefore, the Carbon foam load magnesium ambrose alloy composite hydrogen storage material of the present embodiment had not only had the hydrogen storage property of Carbon foam but also had had magnesium
Monel hydrogen storage material performance.
Raw material sources needed for the Carbon foam according to involved in the present embodiment loads the preparation of magnesium ambrose alloy composite hydrogen storage material
In coal tar asphalt and magnesium monel, preparation process is simple, controllable, and cost is very low, and the hydrogen storage material being prepared is advantageous
In transport hydrogen, stability is good, can store for a long time, is not susceptible to secondary pollution.Therefore, Carbon foam involved in the present embodiment is negative
Carrying magnesium ambrose alloy composite hydrogen storage material and preparation method thereof has the characteristics that inexpensively practical, can be widely used in and needs to store hydrogen
Petrochemical industry, thermodynamic power, energy source and power and the relevant industries of gas and enterprise.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (2)
1. a kind of preparation method of Carbon foam load magnesium ambrose alloy composite hydrogen storage material, which comprises the following steps:
A. 500~1000 grams of coal tar asphaltes are crushed to 80~120 mesh, addition accounts for the mass percent of the coal tar asphalt
10%~30% polyethylene glycol, addition account for two formyl of azo of the mass percent 10%~30% of the coal tar asphalt
Amine is added to high-temperature high-pressure reaction kettle after mixing, under 3~5 atmospheric pressures and nitrogen atmosphere, with 5~10 DEG C/
Min is heated to 350~450 DEG C, makes its isothermal reaction and foams, after 5~10 hours, cooled to room temperature obtains primary
The primary Carbon foam raw material are put into carbide furnace, under normal pressure nitrogen atmosphere, with 40~70 DEG C/min heating by Carbon foam raw material
To 1000~1200 DEG C, then constant temperature is carbonized 2~4 hours, and natural cooling obtains Carbon foam carrier material, then is ground into 80~100
Purpose Carbon foam carrier material particles；
B. take respectively the magnesium powder, 5%~10% that account for the mass percent 10%~30% of the coal tar asphalt nickel powder, 5%
~10% copper powder melts under conditions of argon atmosphere, 3~5 atmospheric pressure in 1200~1500 DEG C of high-temperature smelting pots
1~3 hour, natural cooling obtained magnesium monel, then was ground into the magnesium monel powder of 200 mesh；
C. magnesium monel powder made from step b is added to the Carbon foam carrier material particles made from step a
In, under conditions of hydrogen shield atmosphere, 200~400 DEG C of temperature, 3~5 atmospheric pressure, using ball mill grinding 3~6 hours,
Obtain the Carbon foam load magnesium ambrose alloy composite hydrogen storage material.
2. a kind of Carbon foam loads magnesium ambrose alloy composite hydrogen storage material, which is characterized in that using preparation side as described in claim 1
Method is prepared, and Carbon foam load magnesium ambrose alloy composite hydrogen storage material is made of following component: the carbon of 50~70 mass fractions, 20
The magnesium of~40 mass fractions, the nickel of 5~10 mass fractions, 5~10 mass fractions copper.
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| CN110577219A (en) * | 2019-09-29 | 2019-12-17 | 南京工程学院 | Magnetic sludge straw-based activated carbon and preparation method thereof |
| CN111850366B (en) * | 2020-06-12 | 2021-06-18 | 榆林学院 | Oxide-loaded magnesium-nickel alloy hydrogen storage composite material and preparation method thereof |
| CN112777564A (en) * | 2021-01-30 | 2021-05-11 | 山东大学 | Magnesium-nickel-petroleum coke active carbon composite hydrogen storage material and preparation method thereof |
| CN115231513B (en) * | 2022-06-24 | 2023-06-20 | 上海理工大学 | Nano mesoporous composite metal hydrogen carrier for preparing hydrogen by chemical-looping water vapor conversion and preparation method thereof |
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| CN1259584A (en) * | 2000-01-20 | 2000-07-12 | 南开大学 | Hydrogen storage alloy/carbon nanometer tube composite hydrogen storage material |
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