CN101081367A - Metal catalyst for producing hydrogen by the hydrolyzing of boron azote alkane and method for preparing the same - Google Patents
Metal catalyst for producing hydrogen by the hydrolyzing of boron azote alkane and method for preparing the same Download PDFInfo
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- CN101081367A CN101081367A CNA2007100520237A CN200710052023A CN101081367A CN 101081367 A CN101081367 A CN 101081367A CN A2007100520237 A CNA2007100520237 A CN A2007100520237A CN 200710052023 A CN200710052023 A CN 200710052023A CN 101081367 A CN101081367 A CN 101081367A
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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
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Abstract
The alloy catalyst for hydrolyzing boroazane to produce hydrogen is Ni-base alloy catalyst supported onto porous carrier, and consists of Ni-base alloy as active component in 10-90 wt% and porous carrier material in 10-90 wt%. When the alloy catalyst is applied in hydrolyzing boroazane to produce hydrogen, hydrogen in the amount of 3 moles and the purity as high as 100 % may be obtained in several minutes for each mole of boroazane. Compared with available noble metal catalyst, the present invention has the advantages of higher catalysis activity and low cost. The present invention makes it possible to constitute efficient fast high-purity hydrogen generator for fuel cell, etc.
Description
Technical field
The present invention relates to alloy catalyst of a kind of boron azane hydrolytic hydrogen production and preparation method thereof, belong to the technical field of electrochemistry, catalytic chemistry and chemical energy source.
Background technology
Hydrogen-oxygen (air) fuel cell is a kind of TRT of clean and effective, has remarkable advantages such as high-energy-density, non-environmental-pollution, is the desirable supporting power supply of multiple portable type electronic product and electric vehicle.The technology of hydrogen-air fuel cell is quite ripe at present, and the main cause that hinders its extensive use is to lack hydrogen-storing device efficiently.All the time, methods such as hydrogen bearing alloy storage hydrogen, hydrogen Storage in Carbon Nanotubes, organic compound reformation hydrogen production, require to inhale put the hydrogen condition harshness or hydrogen output not high (general＜as 3wt%), still can not to satisfy application requirements.The boron azane be a kind of hydrogen content very high (～20wt%), and in the aqueous solution stable compound.Utilize the catalyzing hydrolysis of boron azane to put the hydrogen production process that hydrogen is a kind of simple and effective, can be used as the hydrogen source of portable or portable fuel cell.Abroad once the someone reported and utilized precious metals pt, Rh, Pd catalysis boron azane hydrolytic hydrogen production.
Summary of the invention
The object of the present invention is to provide a kind of alloy catalyst and preparation method thereof of high performance boron azane hydrolytic hydrogen production of cheapness, hydrogen is put in the catalysis boron azane hydrolysis efficiently of this catalyst, can be used for making up that a class is simple and reliable, the chemical hydrogen source of high hydrogen-storage density, be applied to various portable hydrogen-oxygen (air) fuel cells or other Hydrogen Technology products.
Technical scheme of the present invention is: a kind of alloy catalyst of boron azane hydrolytic hydrogen production, it is characterized in that: this catalyst is a non-noble metal Ni-based alloy catalyst, alloy catalyst is dispersed on the porous material carrier, catalyst loading is the nickel alloy of 10～90wt%, the porous carrier materials of 90～10wt%.
The alloy catalyst of aforesaid boron azane hydrolytic hydrogen production is characterized in that: the metal that forms alloy with Ni is one of following metal: Au, Ag, Cu, Fe, Co, Sn, Al, Ir, Ru.
The alloy catalyst of aforesaid boron azane hydrolytic hydrogen production is characterized in that: described catalyst porous carrier materials is one of following: active carbon, acetylene black, alundum (Al, silica.
The preparation method of the alloy catalyst of above-mentioned boron azane hydrolytic hydrogen production, it is characterized in that: metal salt solution is mixed, add catalyst carrier, select the preparation of one of following method of reducing for use: liquid phase reduction, carbothermic method, hydrogen reduction method or polymer pyrolysismethod.
The preparation method of the alloy catalyst of aforesaid boron azane hydrolytic hydrogen production, it is characterized in that: selected slaine is a soluble metallic salt, comprise chloride, nitrate, sulfate, oxalates, acetate, carbonate or phosphate, or two or three metal salt mixture wherein, this mixture should not produce precipitation when mixing.
The preparation method of the alloy catalyst of aforesaid boron azane hydrolytic hydrogen production, it is characterized in that described slaine can select the preparation of multiple solvent for use, as water, acetone, isopropyl alcohol, N, a kind of or wherein any two kinds mixture in dinethylformamide, N-methyl pyrrolidone, the oxolane.
Useful effect: catalyst of the present invention is used for boron azane hydrolysis and prepares hydrogen, has good catalytic activity.In the neutral aqueous solution system, the hydrolysis of boron azane can produce the hydrogen of about 8.7wt% under the room temperature.
Description of drawings
Accompanying drawing 1: the displacement of volume method is collected the hydrogen device figure that hydrolysis discharges.Wherein, 1-thermostatted water bathtub, the hydrogen flask is produced in the 2-hydrolysis, and 3-collects the U-shaped pipe of gas.
Accompanying drawing 2: embodiment 1---under the room temperature, in the 20mg NiCu/C catalyst, 50mL 0.02molL
-1BH
3NH
3Hydrogen speed is released in the hydrolysis of solution.
Accompanying drawing 3: embodiment 2---under the room temperature, in the 20mg NiAg/C catalyst, 50mL 0.02molL
-1BH
3NH
3Hydrogen speed is released in the hydrolysis of solution.
Accompanying drawing 4: under the room temperature, relatively hydrogen speed (20mg catalyst, 20wt% metal carrying capacity, 50mL 0.02molL are released in the hydrolysis of Pt/C and Ni based alloy catalyst
-1BH
3NH
3Solution).
The specific embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is further described:
Embodiment 1: will contain NiCl
26H
2O is the aqueous solution of 77.8mg and contains CuCl
22H
2O is the aqueous solution of 55.8mg, mix, the activated carbon powder that adds 160mg, add thermal agitation concentrated solution (60 ℃), and ultrasonic wave disperses to hocket, and until becoming paste mixture, dries in 60 ℃ of baking ovens, 300 ℃ of following reductase 12s of hydrogen atmosphere hour can obtain 20%NiCu/C (Ni: Cu atomic ratio=1: 1).
Embodiment 2: will contain Ni (NO
3)
26H
2O is the aqueous solution of 69.8mg and contains AgNO
3The aqueous solution for 40.8mg, mix, the activated carbon powder that adds 160mg, add thermal agitation concentrated solution (60 ℃), and ultrasonic wave disperses to hocket, and until becoming paste mixture, dries in 60 ℃ of baking ovens, 300 ℃ of following reductase 12s of hydrogen atmosphere hour can obtain 20%NiAg/C (Ni: Ag atomic ratio=1: 1).
Embodiment 3: with hot water dissolving 127.5mg SnCl
22H
2The O solid, and drip several concentrated hydrochloric acid solution hydrotropies, make it become settled solution.NiCl with 134.4mg
26H
2The O solid adds SnCl
2In the solution, in 60 ℃ of water-baths the heating and stir.The 100mg activated carbon powder is added in the above-mentioned mixed solution.After 20 minutes mixture carried out ultrasonic dispersion 20 minutes.To add two steps of thermal agitation and ultrasonic dispersion and hocket, till mixture becomes paste mixture.Allow paste mixture 60 ℃ of oven dry down, become solid, solid is pulverized, in 200 ℃ of tube furnaces, use hydrogen reducing 4 hours, can obtain 50%NiSn/C (Ni: Sn atomic ratio=1: 1).Embodiment 4: with the NiCl of 148.6mg
22H
2The HAuCl of O and 257.4mg
44H
2The O solid adds wiring solution-forming in the entry, stirs, and stirs the activated carbon that adds 40mg down, and magnetic agitation process and ultrasonic wave dispersion process are hocketed, and allows mixture fully be uniformly dispersed, and slowly drips 2.5% NaBH again
4The aqueous solution, after reacting completely, filtration washing, 80 ℃ of vacuum drying 10h can obtain 80%NiAu/C (Ni: Au atomic ratio=1: 1).Embodiment 5: make catalyst with 20mg 20wt%NiAg/C, catalyst is dropped into 50ml 0.02mol.L
-1BH
3NH
3In the aqueous solution, the experiment that is hydrolyzed under room temperature (20 ℃) is adopted the constant voltage drainage with the U-shaped pipe, measures the volume of the hydrogen of emitting.
Claims (6)
1, a kind of alloy catalyst of boron azane hydrolytic hydrogen production, it is characterized in that: this catalyst is a non-noble metal Ni-based alloy catalyst, alloy catalyst is dispersed on the porous material carrier, and catalyst loading is the nickel alloy of 10～90wt%, the porous carrier materials of 90～10wt%.
2, the alloy catalyst of boron azane hydrolytic hydrogen production as claimed in claim 1 is characterized in that: the metal that forms alloy with Ni is one of following metal: Au, Ag, Cu, Fe, Co, Sn, Al, Ir, Ru.
3, the alloy catalyst of boron azane hydrolytic hydrogen production as claimed in claim 1 is characterized in that: described catalyst porous carrier materials is one of following: active carbon, acetylene black, alundum (Al, silica.
4, the preparation method of the alloy catalyst of above-mentioned boron azane hydrolytic hydrogen production, it is characterized in that: metal salt solution is mixed, add catalyst carrier, select the preparation of one of following method of reducing for use: liquid phase reduction, carbothermic method, hydrogen reduction method or polymer pyrolysismethod.
5, the preparation method of the alloy catalyst of boron azane hydrolytic hydrogen production as claimed in claim 4, it is characterized in that: selected slaine is a soluble metallic salt, comprise chloride, nitrate, sulfate, oxalates, acetate, carbonate or phosphate, or two or three metal salt mixture wherein, this mixture should not produce precipitation when mixing.
6, the preparation method of the alloy catalyst of boron azane hydrolytic hydrogen production as claimed in claim 4, it is characterized in that described slaine selects the preparation of following solvent for use: water, acetone, isopropyl alcohol, N, a kind of or wherein any two kinds mixture in dinethylformamide, N-methyl pyrrolidone, the oxolane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100520237A CN101081367A (en) | 2007-04-28 | 2007-04-28 | Metal catalyst for producing hydrogen by the hydrolyzing of boron azote alkane and method for preparing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100520237A CN101081367A (en) | 2007-04-28 | 2007-04-28 | Metal catalyst for producing hydrogen by the hydrolyzing of boron azote alkane and method for preparing the same |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101652590A Division CN101913557A (en) | 2007-04-28 | 2007-04-28 | Application of non-noble metal Ni-based alloy catalyst |
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| Publication Number | Publication Date |
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| CN101081367A true CN101081367A (en) | 2007-12-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019185B (en) * | 2009-09-16 | 2012-12-05 | 中国科学院大连化学物理研究所 | Supported catalyst and application thereof in hydrocracking reaction of xylitol |
| CN104549364A (en) * | 2015-01-05 | 2015-04-29 | 北京化工大学 | Carbon-loaded core-shell catalyst with nano copper nickel alloy core-precious metal shell and preparation method of catalyst |
| CN105655607A (en) * | 2016-02-01 | 2016-06-08 | 中国科学院福建物质结构研究所 | High-platinum base-loaded carbon nano tube nanocatalyst and preparation method thereof |
| CN106622218A (en) * | 2015-10-30 | 2017-05-10 | 中国科学院大连化学物理研究所 | Preparation method of carbon-loaded Ru base catalyst by carbon thermal reduction |
-
2007
- 2007-04-28 CN CNA2007100520237A patent/CN101081367A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019185B (en) * | 2009-09-16 | 2012-12-05 | 中国科学院大连化学物理研究所 | Supported catalyst and application thereof in hydrocracking reaction of xylitol |
| CN104549364A (en) * | 2015-01-05 | 2015-04-29 | 北京化工大学 | Carbon-loaded core-shell catalyst with nano copper nickel alloy core-precious metal shell and preparation method of catalyst |
| CN106622218A (en) * | 2015-10-30 | 2017-05-10 | 中国科学院大连化学物理研究所 | Preparation method of carbon-loaded Ru base catalyst by carbon thermal reduction |
| CN105655607A (en) * | 2016-02-01 | 2016-06-08 | 中国科学院福建物质结构研究所 | High-platinum base-loaded carbon nano tube nanocatalyst and preparation method thereof |
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