WO2011027462A1 - 水素吸蔵ユニット - Google Patents
水素吸蔵ユニット Download PDFInfo
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- WO2011027462A1 WO2011027462A1 PCT/JP2009/065505 JP2009065505W WO2011027462A1 WO 2011027462 A1 WO2011027462 A1 WO 2011027462A1 JP 2009065505 W JP2009065505 W JP 2009065505W WO 2011027462 A1 WO2011027462 A1 WO 2011027462A1
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- hydrogen
- hydrogen storage
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- magnesium
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/18—Non-metallic particles coated with metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
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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
-
- 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
- C01B3/0042—Intermetallic compounds; Metal alloys; Treatment thereof only containing magnesium and nickel; Treatment thereof
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/06—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element
- C22C47/062—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element from wires or filaments only
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/08—Metallic powder characterised by particles having an amorphous microstructure
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/04—Hydrogen absorbing
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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
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
Definitions
- the present invention relates to a hydrogen storage unit that stores hydrogen.
- Gaseous hydrogen is used as hydrogen used in fuel cells for vehicles and the like. Hydrogen has a very large volume in the gaseous state. For this reason, gaseous hydrogen is compressed and used. However, it still has a large volume and a space problem for practical use. On the other hand, liquid hydrogen has a smaller volume than gaseous hydrogen. However, it is difficult to hold hydrogen in a liquid state, which is not suitable for practical use. Therefore, research and development has been conducted on the use of solid hydrogen having a small volume and improved handleability. Solid hydrogen is used in a state where hydrogen is occluded in the alloy. This alloy is called a hydrogen storage alloy. Hydrogen repeatedly occludes and releases from this hydrogen storage alloy.
- Patent Document 1 A hydrogen gas sensor using such a hydrogen storage alloy is disclosed in Patent Document 1.
- a Pd—Ag alloy layer is formed on the surface of a substrate by a vapor deposition method, and a Pd or Pt thin film is further laminated thereon.
- Patent Document 1 the substrate shown in Patent Document 1 is plate-shaped. Since the alloy layer that occludes hydrogen is deposited on this substrate, the contact area between the alloy layer and hydrogen is almost the same as the surface area of the substrate. In recent years, since it is desired to store more hydrogen, it is necessary to further increase the amount of hydrogen stored.
- the present invention has been made in consideration of the above-described prior art, and an object thereof is to provide a hydrogen storage unit capable of efficiently storing a large amount of hydrogen by increasing the contact area with hydrogen.
- the invention of claim 1 comprises a porous body having a large number of holes through which hydrogen molecules can pass, and a hydrogen storage alloy that covers the surface of the porous body including the holes,
- the hydrogen storage alloy provides a hydrogen storage unit comprising a hydrogen storage base formed of a material that stores hydrogen, and a catalyst layer covering the surface of the hydrogen storage base.
- the invention of claim 2 is characterized in that, in the invention of claim 1, the porous body is an aggregate of nanofibers.
- the invention of claim 3 is characterized in that, in the invention of claim 2, the orientation of the individual nanofibers in the aggregate is random.
- the invention of claim 4 is characterized in that, in the invention of claim 2, the aggregate is in the form of a nonwoven fabric.
- the hydrogen storage base is formed in a layered manner on the surface of the porous body by vapor deposition.
- the hydrogen storage base includes magnesium, a magnesium-nickel alloy, a magnesium-titanium alloy, a magnesium-niobium alloy, a magnesium-manganese alloy, or a magnesium-cobalt. It is formed from a mixture with an alloy.
- the invention of claim 7 is characterized in that, in the invention of claim 6, the catalyst layer is made of Pd.
- the hydrogen storage alloy covers the surface of the porous body having many holes through which hydrogen atoms can pass, the surface area of the hydrogen storage layer is increased and the contact area with hydrogen is increased. For this reason, more rapid hydrogen storage can be realized.
- the pores are formed even in the naturally formed aggregate without particularly limiting the arrangement of the nanofibers. By using this hole, quick hydrogen storage can be performed.
- the nanofiber aggregate is formed in a non-woven fabric. For this reason, it can be used as a porous body excellent in handleability.
- the hydrogen storage alloy is formed in a layer form by vapor deposition on the porous body, it is easy to manufacture and can realize quick hydrogen storage.
- a hydrogen storage alloy having both the high hydrogen storage performance of Mg and the high solid diffusion performance of other alloys (especially Mg 2 Ni is preferable).
- the hydrogen occluded in Mg is transferred to another Mg (or Mg 2 Ni) by, for example, Mg 2 Ni. This transfer of hydrogen does not require heat or pressure. For this reason, hydrogen can be occluded at room temperature and atmospheric pressure.
- hydrogen is dissociated from molecules to atoms by Pd (H 2 ⁇ 2H). Hydrogen is occluded by Mg most rapidly in the atomic state. Unlike Pt, Pd does not have the ability to protonate hydrogen atoms. Therefore, hydrogen can be kept in an atomic state by using Pd as a catalyst. For this reason, hydrogen occlusion quicker than using a platinum catalyst is realizable.
- FIG. 1 is a schematic view of a hydrogen storage unit according to the present invention.
- the hydrogen storage unit 7 according to the present invention is an aggregate of hydrogen storage fibers 8 in which a hydrogen storage alloy 1 (see FIGS. 2 to 5) is deposited on nanofibers.
- a gap 9 is formed when a large number of hydrogen storage fibers 8 intersect. The orientation of the individual nanofibers may be random. The size of the gap 9 is formed such that hydrogen molecules can pass through. Since the hydrogen storage alloy 1 is deposited on such a nanofiber, the surface area of the hydrogen storage base 2 (see FIGS. 2 to 5) increases, and the contact area with hydrogen increases.
- the gap 9 becomes a hole through which hydrogen molecules pass, and hydrogen is occluded after entering not only the surface of the hydrogen occlusion unit 7 but also the inside of the hydrogen occlusion unit 7, so that more rapid hydrogen occlusion is realized. be able to.
- the nanofiber itself is made of a porous material, for example, a porous nanofiber
- the surface area of the hydrogen storage base 2 can be further increased, the contact area with hydrogen can be increased, and rapid hydrogen storage can be realized. Can do.
- Nanofibers may be bundled to form a nonwoven fabric.
- the hydrogen storage unit 7 may be manufactured by reacting, for example, the hydrogen storage alloy 1 and the nanofibers simultaneously from the respective solutions, or may be manufactured separately and the hydrogen storage alloy 1 may be deposited on the nanofibers later by sputtering or the like. May be.
- FIG. 2 is a longitudinal sectional view of the hydrogen storage fiber.
- FIG. 3 is a cross-sectional view of the hydrogen storage fiber of FIG.
- the hydrogen storage fiber 8 is formed of a nanofiber 10, a hydrogen storage base (hydrogen storage layer) 2, and a catalyst layer 3. More specifically, the hydrogen storage alloy 1 is deposited on the surface of the nanofiber 10 in a layered manner. A large number of such hydrogen storage fibers 8 are crossed and intertwined to form an aggregate, thereby forming the hydrogen storage unit 7. When the surface of the nanofiber 10 is smooth, it is uniformly deposited as shown in the figure.
- the nanofiber can be produced using an electrospinning method or the like.
- FeTi FeTiH 1.7 after hydrogen storage
- LaNi 5 LaNi 5 H 6 after hydrogen storage
- BaRe BaReH 9 after hydrogen storage
- MgNi MgNiH 4 after hydrogen occlusion
- MgFe MgFeH 6 after hydrogen occlusion
- Mg MgH 2 after hydrogen occlusion
- Mg 2 Ni Mg 2 NiH 4 after hydrogen occlusion
- GdMgNi 4 Mg 0.7 GdNi 2
- Mg 50 Co 50 Mg 70 Al 30
- Mg 9 Ti 0.5 Ni 0.5 , MgPd 0.08 and the like.
- non-metallic NaAl (after hydrogen occlusion is NaAlH 4), KB (after hydrogen occlusion is KBH 4), LiAl (after hydrogen occlusion is LiAlH 4), Li (after hydrogen occlusion is LiH), NaB (hydrogen storage Thereafter, there are NaBH 4 ), ALB 3 (AL (BH 4 ) 3 after hydrogen occlusion), LIB (LIBH 4 after hydrogen occlusion) and the like.
- Other hydrogen storage materials include Mg 3 N 2 -4Li 3 N, C—Li 2 Mg (NH) 2 , Mg 100 —xLi x Ti 100 , Ti—Cr—V, Ti—Mo—V, Mg -Si, Mg-Co, Mg-Sm-Ni, Mg-Nd-Ni, Mg-Pr-Ni, Mg-La-Ni, etc.
- the catalyst layer 3 include Pd (palladium), Pt (platinum), Nb (niobium), and ZrNi (zirconia / nickel).
- FIG. 4 is a longitudinal sectional view of another hydrogen storage fiber.
- FIG. 5 is a cross-sectional view of the hydrogen storage fiber of FIG.
- the hydrogen storage base (hydrogen storage core) 2 made of a material that stores hydrogen is spherical
- the catalyst layer 3 is spherical and covers the periphery. . That is, the hydrogen storage core 2 and the catalyst layer 3 form a colloid.
- Such nanoalloy particles adhere to the periphery of the nanofiber 10 to form the hydrogen storage fiber 8.
- the hydrogen storage alloy 1 can be obtained in various forms by appropriately changing the manufacturing method of the alloy 1.
- FIG. 6 is a schematic view showing an example of the hydrogen storage alloy according to the present invention.
- the hydrogen storage alloy 1 according to the present invention includes a hydrogen storage base 2 and a catalyst layer 3.
- the hydrogen storage base 2 is a thin film formed by mixing Mg metal 4 and another alloy (Mg 2 Ni 5 in the figure).
- the mixing ratio of Mg4 and Mg 2 Ni5 is 0 to 10 (excluding 0) molecules of Mg with respect to one molecule of Mg 2 Ni. More preferably, 4 to 8 molecules of Mg per 1 molecule of Mg 2 Ni.
- the chemical formula after mixing is preferably Mg 6 Ni.
- the hydrogen storage base 2 is preferably in an amorphous state. The thinning of the hydrogen storage base 2 also contributes to speeding up of hydrogen storage.
- the catalyst layer 3 is made of Pd (palladium).
- the catalyst layer 3 is formed so as to cover the entire surface of the hydrogen storage base 2. However, it may be partially covered.
- Pd palladium
- hydrogen is dissociated from molecules to atoms (H 2 ⁇ 2H). Hydrogen is occluded by Mg most rapidly in the atomic state. Unlike Pt, Pd does not have the ability to protonate hydrogen atoms. Therefore, hydrogen can be kept in an atomic state by using Pd as a catalyst. For this reason, hydrogen occlusion quicker than using a platinum catalyst is realizable.
- magnesium / nickel alloy magnesium / titanium alloy, magnesium / niobium alloy, magnesium / manganese alloy, or magnesium / cobalt alloy may be used.
- Pd palladium
- Pt platinum
- Nb niobium
- ZrNi zirconia / nickel
- FIG. 7 is a graph showing the relationship between time and pressure when hydrogen is stored using the hydrogen storage unit according to the present invention.
- the pressure increases while hydrogen storage by the hydrogen storage alloy is started.
- the hydrogen occlusion by the hydrogen occlusion alloy further proceeds, and the pressure decreases at a stretch.
- the decrease in pressure indicates a decrease in the pressure of the supplied gaseous hydrogen, indicating that hydrogen is occluded. Therefore, it can be confirmed that rapid hydrogen storage is performed.
- Hydrogen Storage Alloy Hydrogen Storage Layer 3 Catalyst Layer 4 Mg 5 Mg 2 Ni 6 Hydrogen 7 Hydrogen storage unit 8 Hydrogen storage fiber 9 Gap 10 Nanofiber
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Abstract
Description
また、請求項3の発明では、請求項2の発明において、前記集合体内の個々のナノファイバの向きはランダムであることを特徴としている。
請求項5の発明では、請求項1の発明において、前記水素吸蔵ベースは、前記多孔質体の前記表面に蒸着によって層状に形成されていることを特徴としている。
また、請求項7の発明では、請求項6の発明において、前記触媒層は、Pdで形成されていることを特徴としている。
図示したように、本発明に係る水素吸蔵ユニット7は、ナノファイバに水素吸蔵合金1(図2~図5参照)が蒸着した水素吸蔵繊維8の集合体である。水素吸蔵繊維8が多数交差することにより、隙間9が形成される。個々のナノファイバの向きはランダムでよい。この隙間9の大きさは、水素分子が通過可能な大きさに形成されている。このようなナノファイバに水素吸蔵合金1が蒸着されているので、水素吸蔵ベース2(図2~図5参照)の表面積が大きくなり、水素との接触面積が広がる。すなわち、隙間9が水素分子を通過させる孔となって、水素吸蔵ユニット7の表面だけではなく、水素吸蔵ユニット7の内側まで入り込んでから水素が吸蔵されるため、より迅速な水素吸蔵を実現することができる。
図示したように、水素吸蔵繊維8は、ナノファイバ10と、水素吸蔵ベース(水素吸蔵層)2と、触媒層3で形成されている。より詳しくは、ナノファイバ10の表面に水素吸蔵合金1が層状に蒸着されて形成されている。このような水素吸蔵繊維8が多数交差して絡み合って集合体となることで、水素吸蔵ユニット7を形成している。ナノファイバ10の表面が平滑である場合、図のように均一に蒸着される。ナノファイバは、エレクトロスピニング法等を用いて作成することができる。
触媒層3に用いるものとしては、Pd(パラジウム)やPt(白金)、Nb(ニオブ)あるいはZrNi(ジルコニア・ニッケル)等がある。
図示したように、水素吸蔵合金1がナノ合金粒子となった場合、水素を吸蔵する材料からなる水素吸蔵ベース(水素吸蔵コア)2が球状となり、その周りを触媒層3が球状となって覆う。すなわち、水素吸蔵コア2と触媒層3でコロイドを形成している。このようなナノ合金粒子が、ナノファイバ10の周囲に付着して水素吸蔵繊維8が形成される。
図示したように、本発明に係る水素吸蔵合金1は、水素吸蔵ベース2と、触媒層3からなる。水素吸蔵ベース2は、Mg金属4と、他の合金(図ではMg2Ni5)とを混合して薄膜化したものである。このMg4とMg2Ni5の混合割合は、1分子のMg2Niに対し、0~10(0を含まない)分子のMgである。より好ましくは、1分子のMg2Niに対し、4~8分子のMgである。特に、混合後の化学式がMg6Niであることが好ましい。このようにMg4とMg2Ni5とを混合することにより、以下の化学反応がおこり、図の矢印で示すように、水素原子Hが内側のMg(又はMg2Ni)に渡され、水素の固体拡散性能が高まる。したがって、迅速な水素吸蔵を実現できる。なお、水素吸蔵ベース2は、アモルファス状態であることが好ましい。また、水素吸蔵ベース2を薄膜化したことも水素吸蔵の迅速化に寄与している。
Mg2Ni+4H2→Mg2NiH4
グラフに示されるように、真空状態で水素を供給すると、水素吸蔵合金による水素吸蔵が開始されつつ圧力が増加していく。時間Tで水素の供給を止めると、水素吸蔵合金による水素吸蔵がさらに進み、圧力が一気に低下している。圧力の低下は、供給された気体水素の圧力の低下を示し、水素が吸蔵されていることを示している。したがって、迅速な水素吸蔵が行われていることが確認できる。
2 水素吸蔵層
3 触媒層
4 Mg
5 Mg2Ni
6 水素
7 水素吸蔵ユニット
8 水素吸蔵繊維
9 隙間
10 ナノファイバ
Claims (7)
- 水素分子が通過可能な孔を多数備えた多孔質体と、
前記孔を含む前記多孔質体の表面を覆う水素吸蔵合金とを備え、
前記水素吸蔵合金は、
水素を吸蔵する材料で形成された水素吸蔵ベースと、
該水素吸蔵ベースの表面を覆う触媒層とを有することを特徴とする水素吸蔵ユニット。 - 前記多孔質体は、ナノファイバの集合体であることを特徴とする請求項1に記載の水素吸蔵ユニット。
- 前記集合体内の個々のナノファイバの向きはランダムであることを特徴とする請求項2に記載の水素吸蔵ユニット。
- 前記集合体は、不織布状をなしていることを特徴とする請求項2に記載の水素吸蔵ユニット。
- 前記水素吸蔵ベースは、前記多孔質体の前記表面に蒸着によって層状に形成されていることを特徴とする請求項1に記載の水素吸蔵ユニット。
- 前記水素吸蔵ベースは、マグネシウムと、マグネシウム・ニッケル合金、又はマグネシウム・チタン合金、又はマグネシウム・ニオブ合金、又はマグネシウム・マンガン合金、又はマグネシウム・コバルト合金との混合物から形成されていることを特徴とする請求項1に記載の水素吸蔵ユニット。
- 前記触媒層は、Pdで形成されていることを特徴とする請求項6に記載の水素吸蔵ユニット。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801623079A CN102596452A (zh) | 2009-09-04 | 2009-09-04 | 储氢单元 |
US13/393,792 US8871671B2 (en) | 2009-09-04 | 2009-09-04 | Hydrogen storage unit |
CA 2771363 CA2771363A1 (en) | 2009-09-04 | 2009-09-04 | Hydrogen storage unit |
EP09848993.3A EP2474377A4 (en) | 2009-09-04 | 2009-09-04 | HYDROGEN STORAGE UNIT |
JP2011529752A JPWO2011027462A1 (ja) | 2009-09-04 | 2009-09-04 | 水素吸蔵ユニット |
PCT/JP2009/065505 WO2011027462A1 (ja) | 2009-09-04 | 2009-09-04 | 水素吸蔵ユニット |
KR20127004567A KR20120083291A (ko) | 2009-09-04 | 2009-09-04 | 수소흡장 유닛 |
Applications Claiming Priority (1)
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PCT/JP2009/065505 WO2011027462A1 (ja) | 2009-09-04 | 2009-09-04 | 水素吸蔵ユニット |
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US (1) | US8871671B2 (ja) |
EP (1) | EP2474377A4 (ja) |
JP (1) | JPWO2011027462A1 (ja) |
KR (1) | KR20120083291A (ja) |
CN (1) | CN102596452A (ja) |
CA (1) | CA2771363A1 (ja) |
WO (1) | WO2011027462A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015096806A (ja) * | 2013-11-15 | 2015-05-21 | 株式会社日立製作所 | 伝送装置 |
JP2015096805A (ja) * | 2013-11-15 | 2015-05-21 | 株式会社日立製作所 | 伝送装置 |
WO2018230447A1 (ja) * | 2017-06-15 | 2018-12-20 | 株式会社クリーンプラネット | 発熱装置および発熱方法 |
JP2019149343A (ja) * | 2018-02-28 | 2019-09-05 | 古河電気工業株式会社 | 高温超電導ケーブル、中間接続部及び終端接続部 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102652192B (zh) * | 2009-12-09 | 2014-12-24 | 日清纺控股株式会社 | 柔性碳纤维非织造布 |
US9045335B2 (en) * | 2010-08-18 | 2015-06-02 | The Governors Of The University Of Alberta | Kinetic stabilization of magnesium hydride |
US9533884B1 (en) | 2016-05-24 | 2017-01-03 | Kuwait Institute For Scientific Research | Composition for hydrogen storage |
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- 2009-09-04 JP JP2011529752A patent/JPWO2011027462A1/ja active Pending
- 2009-09-04 CA CA 2771363 patent/CA2771363A1/en not_active Abandoned
- 2009-09-04 KR KR20127004567A patent/KR20120083291A/ko not_active Application Discontinuation
- 2009-09-04 EP EP09848993.3A patent/EP2474377A4/en not_active Withdrawn
- 2009-09-04 WO PCT/JP2009/065505 patent/WO2011027462A1/ja active Application Filing
- 2009-09-04 US US13/393,792 patent/US8871671B2/en active Active
- 2009-09-04 CN CN2009801623079A patent/CN102596452A/zh active Pending
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015096806A (ja) * | 2013-11-15 | 2015-05-21 | 株式会社日立製作所 | 伝送装置 |
JP2015096805A (ja) * | 2013-11-15 | 2015-05-21 | 株式会社日立製作所 | 伝送装置 |
WO2018230447A1 (ja) * | 2017-06-15 | 2018-12-20 | 株式会社クリーンプラネット | 発熱装置および発熱方法 |
JPWO2018230447A1 (ja) * | 2017-06-15 | 2019-06-27 | 株式会社クリーンプラネット | 発熱装置および発熱方法 |
JP2019168221A (ja) * | 2017-06-15 | 2019-10-03 | 株式会社クリーンプラネット | 発熱装置および発熱方法 |
US11971199B2 (en) | 2017-06-15 | 2024-04-30 | Clean Planet Inc. | Heat generating device and method for generating heat |
JP2019149343A (ja) * | 2018-02-28 | 2019-09-05 | 古河電気工業株式会社 | 高温超電導ケーブル、中間接続部及び終端接続部 |
JP7007947B2 (ja) | 2018-02-28 | 2022-01-25 | 古河電気工業株式会社 | 高温超電導ケーブル、中間接続部及び終端接続部 |
Also Published As
Publication number | Publication date |
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US8871671B2 (en) | 2014-10-28 |
US20120171461A1 (en) | 2012-07-05 |
JPWO2011027462A1 (ja) | 2013-01-31 |
EP2474377A1 (en) | 2012-07-11 |
CA2771363A1 (en) | 2011-03-10 |
EP2474377A4 (en) | 2013-08-28 |
KR20120083291A (ko) | 2012-07-25 |
CN102596452A (zh) | 2012-07-18 |
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