JPS6167739A - Hydrogen occluding alloy - Google Patents
Hydrogen occluding alloyInfo
- Publication number
- JPS6167739A JPS6167739A JP19033784A JP19033784A JPS6167739A JP S6167739 A JPS6167739 A JP S6167739A JP 19033784 A JP19033784 A JP 19033784A JP 19033784 A JP19033784 A JP 19033784A JP S6167739 A JPS6167739 A JP S6167739A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- hydrogen
- alloys
- range
- weight
- 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.)
- Pending
Links
Landscapes
- Hydrogen, Water And Hydrids (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は５０〜１００℃の中温域で水素を吸蔵。[Detailed description of the invention] [Industrial application field] The present invention stores hydrogen in a medium temperature range of 50 to 100°C.
放出する水素吸蔵合金に関するものである。This relates to hydrogen storage alloys that emit hydrogen.
水素吸蔵合金については水素の貯蔵、運搬、分離、精製
、ヒートポンプ、コンプレッサー等に対する用途が研究
されている。そして上記用途のうちヒートポンプやコン
プレッサーのように熱エネルギーの授受が行われる用途
においては２種以上の水素吸蔵合金を組み合わせて該合
金間において水素の授受を行なう方式が主流を占めてい
る。上記水素吸蔵合金の組み合わせにおいては該合金間
で水素の授受を行なうために該合金間で水素を放出する
圧力差が存在することが必要であり、したがって高圧力
の水素を放出する合金と低圧力の水素を放出する合金と
を組み合わせる必要がある。Hydrogen storage alloys are being researched for use in hydrogen storage, transportation, separation, purification, heat pumps, compressors, etc. Among the above-mentioned applications, in applications where thermal energy is exchanged, such as heat pumps and compressors, the mainstream is a system in which two or more types of hydrogen storage alloys are combined and hydrogen is exchanged between the alloys. In the above-mentioned combination of hydrogen storage alloys, it is necessary to have a pressure difference between the alloys to release hydrogen in order to exchange hydrogen between the alloys. It is necessary to combine it with an alloy that releases hydrogen.
従来、この種の水素吸蔵合金としてはＭｇｚＮｉ。Conventionally, MgzNi has been used as this type of hydrogen storage alloy.
ＦｅＴｉ ＋ ＴｉＭｎ１．ｓ ＊ ＬａＮｉ５等が開
発されている。FeTi + TiMn1. s*LaNi5 etc. have been developed.
上記合金において、Ｍｇ２Ｎ ｉ合金は３００℃前後の
高温において水素の放出圧力が数気圧であシ、ＦｅＴｉ
合金やＴｉＭｎ’ｔ、ｓ合金は室温で水素の放出圧力が
数気圧を示す。そこでＭｇｚＮｉ合金とＦｅＴｉ合金ま
たはＴｉＭｎ１．ｓ合金とを組合わせた場合にはシステ
ムを３００℃前後に加熱するだめの熱源が必要である。Among the above alloys, the Mg2Ni alloy has a hydrogen release pressure of several atmospheres at high temperatures around 300°C, and the FeTi
The hydrogen release pressure of alloys, TiMn't, and s alloys is several atmospheres at room temperature. Therefore, MgzNi alloy and FeTi alloy or TiMn1. When combined with s-alloy, a heat source is required to heat the system to around 300°C.
−万ＬａＮｉ５合金は数１０℃で数気圧の水素放出圧力
を示し、したがってＬａＮｉ５合金とＦｅＴｉ合金捷た
はＴｉＭｎｔ５合金とを組合わせればシステムを高々１
００℃１でに加熱するための熱源を用いればよいことに
なる。しかしＬａＮｉ５ 合金は高価であること、単位
重量当シの水素吸蔵量が少ないことと云う欠点を有して
いる。-The LaNi5 alloy exhibits a hydrogen release pressure of several atmospheres at a temperature of several tens of degrees Celsius, so if you combine the LaNi5 alloy with a FeTi alloy or a TiMnt5 alloy, the system can be improved by at most 1
It is sufficient to use a heat source for heating to 00°C. However, the LaNi5 alloy has the disadvantages of being expensive and having a small amount of hydrogen storage per unit weight.
上記従来の問題点を解決する手段として、本発明はＮｉ
と、Ｃａと、Ａｅ、 Ｆｅ＋ Ｍｎ ｌ Ｃｒ ｌ Ｃ
ｏ ｌ Ｃｕからなる群から選ばれた一種もしくは二種
以上の金属とからなる合金であり、Ｃａは１１．５〜１
２０重量係の範囲で含有され、Ａｌ＋ Ｆｅ ＋ １Ｖ
Ｉｌｎ ＋ Ｃｒ ＋ Ｃｏ ＋ Ｃ’ｕからなる群か
ら選ばれた一種もしくは二種以上の金属はＯ〜２０重量
係の範囲で含有されている水素吸蔵合金を提供するもの
である。As a means to solve the above conventional problems, the present invention provides Ni
, Ca, Ae, Fe+ Mn l Cr l C
o l It is an alloy consisting of one or more metals selected from the group consisting of Cu, and Ca is 11.5 to 1
Contained in the range of 20% by weight, Al + Fe + 1V
One or more metals selected from the group consisting of Iln + Cr + Co + C'u provide a hydrogen storage alloy in which the content ranges from O to 20% by weight.
ＬａＮｉ５合金と略同等の水素放出圧力を有する水素吸
蔵合金としてＣａＮｉ５合金が提供されており（特公昭
４９−３４３１６号）、更に該合金を改良するものとし
てＣａＮ１ｘ（ｘ ＝ ８．８〜４．９９ ）合金（特
公昭５５−３５４５７号）あるいはＣａＮ１ｘ（ｘ＝３
８〜６．３）合金（特公昭５６−３３３２１号）が提供
されている。しかしながら本発明者等は上記ＣａＮｉ系
合金について更′に詳細に研究した結果、ＣａＮｉ系合
金の最大有効水素量は上記範囲にはな（Ｃａが１１．５
〜１２．０重量％の範囲にあることを見出したのである
。ちなみにＣａＮｉ５合金ではＣａ含有量が１２．０１
重量％になり、ＣａＮｉ、：ｒ （Ｚ ＝ ８．８〜６
３）合金ではＣａ含有量が１２．０３〜１５．２３重廿
饅になり、このような範囲は明らかに本発明における上
記範囲の外にある。CaNi5 alloy has been provided as a hydrogen storage alloy that has a hydrogen release pressure approximately equivalent to that of LaNi5 alloy (Japanese Patent Publication No. 34316/1973), and CaN1x (x = 8.8 to 4.99) has been proposed as a further improvement of this alloy. ) alloy (Special Publication No. 55-35457) or CaN1x (x=3
8-6.3) alloy (Japanese Patent Publication No. 56-33321) is provided. However, as a result of further detailed research by the present inventors on the CaNi-based alloy, the maximum effective hydrogen content of the CaNi-based alloy is not within the above range (Ca is 11.5
They found that it was in the range of 12.0% by weight. By the way, the Ca content in CaNi5 alloy is 12.01
% by weight, CaNi, :r (Z = 8.8~6
3) The alloy has a Ca content of 12.03 to 15.23 tons, which is clearly outside the above range of the present invention.
本発明のＣａＮｉ系合金には更にＡｎ、 Ｆｅ、 Ｍｎ
。The CaNi alloy of the present invention further contains An, Fe, Mn.
.
Ｃｒ、 Ｃｏ、 Ｃｕからなる群から選ばれた一種もし
くは二種以上の金属が添加されてもよい。該金属の添加
量は２０重量％以上にとどめられる。One or more metals selected from the group consisting of Cr, Co, and Cu may be added. The amount of the metal added is limited to 20% by weight or more.
上記本発明におけるＣａＮｉ系合金の組成範囲の限定理
由を明らかにするために下記の実験を行なう０
実験Ｉ
ＣａとＮｉ原料を種々な比率で混合して高周波訪導炉に
より溶解し、梅々なＣａ含有量を有するＣａＮｉ合金を
溶製した。該合金を粉砕して反応管に充填して該反応管
に７５℃において水素ガスを送通ずる。そ１−て送通す
る水素カスを加圧、減圧して圧力容積法に、Ｃシ水素圧
カー合金組成等混線を求め、該等温線によって有効水素
量と合金中のＣａ含有量との関係を求めた。上記関係は
第」図に示される。第１図によれば有効水素量の最大値
はＣａ含有部・が１１．５〜１２０重−労茅の範囲にあ
ることは明らかである。 □
実験２ ″
ＣａＮｉ系合金において、更にＡｌｌ 、 Ｆｅ ’＋
’ Ｍｎ ＋ Ｃｒ ＋Ｃｏ Ｉ Ｃｔ＋を添加した合
金を実験１と同様に溶製して実験１と同様な方法で７５
℃′において水素圧カー合金組成等混線を求め、該等温
線によって有効水素量および放出圧力を氷めた６その結
果を第１表に示す。 □
第１表
第１表によればＣａＮｉ系合金において、Ａｌ 。In order to clarify the reason for limiting the composition range of the CaNi-based alloy in the present invention, the following experiment will be conducted. A CaNi alloy having a Ca content was produced. The alloy is pulverized and filled into a reaction tube, and hydrogen gas is passed through the reaction tube at 75°C. 1- Pressurize and depressurize the hydrogen scum to be passed through, and use the pressure-volume method to find the C hydrogen pressure car alloy composition cross line, and use the isotherm line to determine the relationship between the effective hydrogen amount and the Ca content in the alloy. I asked for The above relationship is shown in FIG. According to FIG. 1, it is clear that the maximum value of the effective hydrogen amount is in the range of 11.5 to 120% Ca content. □ Experiment 2 ″ In the CaNi alloy, All, Fe '+
' An alloy to which Mn + Cr + Co I Ct + was added was melted in the same manner as in Experiment 1, and 75
℃', and the effective hydrogen amount and release pressure were calculated using the isotherm line. The results are shown in Table 1. □ Table 1 According to Table 1, Al in CaNi alloys.
Ｆｅ ＋ Ｍｎ ＋ Ｃｒ ＋ ’Ｃｏ ＋ Ｃｕの含
有量が２０ｉ量％までの本発明の合金Ａ２〜７は放出圧
力においての低下は認められるが有効水素量においては
これら金属を含まない合金ＡＩと略同等である。又Ｃ。Alloys A2 to A7 of the present invention, in which the content of Fe + Mn + Cr + 'Co + Cu is up to 20i mass %, show a decrease in discharge pressure, but in terms of effective hydrogen amount, they are abbreviated as alloys AI that do not contain these metals. are equivalent. Also C.
を２０重量％以上含む合金屋８はこれら合金Ａ１〜７に
比して有効水素量において劣）、更にＡ４゜Ｆｅは２０
重重量板下の範囲で含むがＣａを１２．０重量係以上に
含む合金Ａ９も合金墓１〜Ａ７に比して有効水素量：に
おいて劣ることが明かである。Alloy 8, which contains 20% by weight or more of
It is clear that alloy A9, which contains Ca in a range below the heavy weight plate but above 12.0 weight coefficient, is also inferior to alloys 1 to A7 in terms of effective hydrogen content.
本発明の水素吸蔵合金は大きな有効水素量を有し、１５
０℃までの温度で充分作動出来るヒートポンプやコンプ
レッサーを提供することを可能ならしめるものであり、
かくして本発明の水素吸蔵合金は工業用や民生用として
の広い応用範囲を有するものである。The hydrogen storage alloy of the present invention has a large effective hydrogen content, with 15
This makes it possible to provide heat pumps and compressors that can operate satisfactorily at temperatures down to 0°C.
Thus, the hydrogen storage alloy of the present invention has a wide range of applications, both industrial and consumer.
第１図はＣａＮｉ合金のＣａ含有量（重量襲）を横軸に
とり有効水素量（重量係）を縦軸にとったグラフである
。FIG. 1 is a graph in which the horizontal axis represents the Ca content (by weight) of the CaNi alloy and the vertical axis represents the effective hydrogen amount (by weight).
Claims (1)
からなる群から選ばれた一種もしくは二種以上の金属と
からなる合金であり、Ｃａは１１．５〜１２．０重量％
の範囲で含有され、Ａｌ，Ｆｅ，Ｍｎ，Ｃｒ，Ｃｏ，Ｃ
ｕからなる群から選ばれた一種もしくは二種以上の金属
は０〜２０重量％の範囲で含有されていることを特徴と
する水素吸蔵合金。Ni, Ca, Al, Fe, Mn, Cr, Co, Cu
An alloy consisting of one or more metals selected from the group consisting of 11.5 to 12.0% by weight of Ca.
Al, Fe, Mn, Cr, Co, C
A hydrogen storage alloy, characterized in that one or more metals selected from the group consisting of u are contained in a range of 0 to 20% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19033784A JPS6167739A (en) | 1984-09-10 | 1984-09-10 | Hydrogen occluding alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19033784A JPS6167739A (en) | 1984-09-10 | 1984-09-10 | Hydrogen occluding alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6167739A true JPS6167739A (en) | 1986-04-07 |
Family
ID=16256512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19033784A Pending JPS6167739A (en) | 1984-09-10 | 1984-09-10 | Hydrogen occluding alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6167739A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003089833A (en) * | 2001-09-19 | 2003-03-28 | National Institute Of Advanced Industrial & Technology | Hydrogen-absorbing alloy and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5360390A (en) * | 1976-11-08 | 1978-05-30 | Int Nickel Co | Method of storing hydrogen in nickellcalcium |
| JPS5633321A (en) * | 1979-08-22 | 1981-04-03 | Nippon Kokan Kk <Nkk> | Chute-opening, -closing device for dust air transportation line |
| JPS60215724A (en) * | 1984-04-11 | 1985-10-29 | Matsushita Electric Ind Co Ltd | Hydrogen occluding material |
-
1984
- 1984-09-10 JP JP19033784A patent/JPS6167739A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5360390A (en) * | 1976-11-08 | 1978-05-30 | Int Nickel Co | Method of storing hydrogen in nickellcalcium |
| JPS5633321A (en) * | 1979-08-22 | 1981-04-03 | Nippon Kokan Kk <Nkk> | Chute-opening, -closing device for dust air transportation line |
| JPS60215724A (en) * | 1984-04-11 | 1985-10-29 | Matsushita Electric Ind Co Ltd | Hydrogen occluding material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003089833A (en) * | 2001-09-19 | 2003-03-28 | National Institute Of Advanced Industrial & Technology | Hydrogen-absorbing alloy and its manufacturing method |
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