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JPH08166478A - High charging method for hydrogen in hydrogen storage alloy - Google Patents

High charging method for hydrogen in hydrogen storage alloy

Info

Publication number
JPH08166478A
JPH08166478A JP6312046A JP31204694A JPH08166478A JP H08166478 A JPH08166478 A JP H08166478A JP 6312046 A JP6312046 A JP 6312046A JP 31204694 A JP31204694 A JP 31204694A JP H08166478 A JPH08166478 A JP H08166478A
Authority
JP
Japan
Prior art keywords
hydrogen
storage alloy
hydrogen storage
light
alloy
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.)
Withdrawn
Application number
JP6312046A
Other languages
Japanese (ja)
Inventor
Noburo Goto
信朗 後藤
Takehiko Ito
岳彦 伊藤
Yasuhiro Iwamura
康弘 岩村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP6312046A priority Critical patent/JPH08166478A/en
Publication of JPH08166478A publication Critical patent/JPH08166478A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/10Nuclear fusion reactors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Landscapes

  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

PURPOSE: To raise the charging factor of hydrogen into a hydrogen storage alloy. CONSTITUTION: By using a hydrogen storage alloy (palladium or its alloy) for cathode electrode 6, and platinum for anode electrode 5, light water or heavy water is electrolyzed. After charging light hydrogen or heavy hydrogen sufficiently in the hydrogen storage alloy, the plating solution is thrown into electrolyte 8 to plate metal on the surface of the hydrogen storage alloy. If the plating metal is not solved in the electrolyte, the hydrogen occlusion alloy is taken out of the electrolyte solution, which is submerged in the plating solution prepared separately to plate metal on the surface of the hydrogen storage alloy. As the surface of the hydrogen storage alloy is plated with metal after charging the hydrogen storage alloy with light hydrogen or heavy hydrogen, the light hydrogen and heavy hydrogen are not discharged from the inside of the hydrogen storage alloy through the surface to the outside and therefore, the charging factor of hydrogen in the hydrogen storage alloy can be raised.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、水素吸蔵合金への軽水
素または重水素の高充填方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for highly filling a hydrogen storage alloy with light hydrogen or deuterium.

【0002】[0002]

【従来の技術】常温核融合を用いたエネルギープラント
を実現するためには、重水素の充填率が高くて核融合現
象の再現性がよいパラジウムが必要である。従来の水素
吸蔵合金への水素充填方法を図5により説明すると、3
1が圧力計、32がバルブ、33が容器、34が重水素
ボンベ、35が水素吸蔵合金(パラジウムまたはその合
金)で、水素吸蔵合金35を容器33の重水素(または
軽水素)雰囲気中に置いて、水素吸蔵合金35に重水素
(または軽水素)を充填するようにしている。
2. Description of the Related Art In order to realize an energy plant using cold fusion, it is necessary to use palladium having a high deuterium filling rate and good reproducibility of fusion phenomena. A conventional method for filling hydrogen into a hydrogen storage alloy will be described with reference to FIG.
1 is a pressure gauge, 32 is a valve, 33 is a container, 34 is a deuterium cylinder, 35 is a hydrogen storage alloy (palladium or its alloy), and the hydrogen storage alloy 35 is placed in the deuterium (or light hydrogen) atmosphere of the container 33. Then, the hydrogen storage alloy 35 is filled with deuterium (or light hydrogen).

【0003】また水素吸蔵合金を陰極電極とし、軽水ま
たは重水を電気分解して、水素吸蔵合金に重水素(また
は軽水素)を充填する水素充填方法も公知である。
A hydrogen filling method is also known in which a hydrogen storage alloy is used as a cathode electrode and light water or heavy water is electrolyzed to fill the hydrogen storage alloy with deuterium (or light hydrogen).

【0004】[0004]

【発明が解決しようとする課題】前記図5に示す従来の
水素吸蔵合金への水素充填方法では、水素吸蔵合金35
に軽水素または重水素を充填する際、水素吸蔵合金35
の金属表面が不純物に覆われていたり、金属組織が破壊
されたりしていると、高充填率の水素吸蔵合金が得られ
ない。また適当な条件を整えて水素吸蔵合金に高充填を
行っても、その後、金属表面から軽水素または重水素が
放出して、充填率が低下するという問題があった。
According to the conventional method for filling hydrogen into the hydrogen storage alloy shown in FIG. 5, the hydrogen storage alloy 35 is used.
When hydrogen or deuterium is charged into the hydrogen storage alloy 35
If the metal surface of is covered with impurities or the metal structure is destroyed, a hydrogen storage alloy with a high filling rate cannot be obtained. Further, even if the hydrogen storage alloy is highly filled by adjusting appropriate conditions, there is a problem that after that, light hydrogen or deuterium is released from the metal surface and the filling rate is lowered.

【0005】本発明は前記の問題点に鑑み提案するもの
であり、その目的とする処は、水素吸蔵合金への水素の
充填率を高めることができる水素吸蔵合金への水素高充
填方法を提供しようとする点にある。
The present invention has been made in view of the above problems, and an object thereof is to provide a method for highly filling hydrogen into a hydrogen storage alloy, which can increase the filling rate of hydrogen into the hydrogen storage alloy. There is a point to try.

【0006】[0006]

【課題を解決するための手段】上記の目的を達成するた
めに、本発明の水素吸蔵合金への水素高充填方法は、水
素吸蔵合金を陰極電極とし、軽水または重水を電気分解
して、同陰極電極に軽水素または重水素を充填し、次い
で陰極電極を金属メッキすることを特徴としている。
In order to achieve the above object, a method for highly filling hydrogen into a hydrogen storage alloy according to the present invention is to use a hydrogen storage alloy as a cathode electrode to electrolyze light water or heavy water, It is characterized in that the cathode electrode is filled with light hydrogen or deuterium, and then the cathode electrode is metal-plated.

【0007】[0007]

【作用】本発明のた水素吸蔵合金への水素高充填方法は
前記のように水素吸蔵合金(パラジウムまたはその合
金)を陰極電極とし、白金を陽極電極として、軽水また
は重水を電気分解し(図1参照)、水素吸蔵合金に十分
に軽水素または重水素を充填したら、メッキ溶液を電解
液中へ投入して、水素吸蔵合金の表面を金属メッキする
(図2参照)。またメッキ溶液が電解液に溶解不可能で
あれば、水素吸蔵合金を電解溶液から取り出して、それ
を別に用意したメッキ溶液中に浸漬して、水素吸蔵合金
の表面を金属メッキする(図3参照)。このように水素
吸蔵合金に軽水素または重水素を充填した後、水素吸蔵
合金の表面を金属メッキするので、軽水素または重水素
が拡散により水素吸蔵合金の内部から表面を経て外部へ
放出されなくなって、水素吸蔵合金への水素の充填率が
高められる。なお必要に応じて水素吸蔵合金に軽水素ま
たは重水素を充填する前に、水素吸蔵合金を熱処理すれ
ば、充填の妨げになる母材内の転位、及び表面にあるク
ラックや不純物がなくなって、水素吸蔵合金への水素の
充填率がさらに高められる。
As described above, the method for highly filling hydrogen into a hydrogen storage alloy of the present invention uses a hydrogen storage alloy (palladium or an alloy thereof) as a cathode electrode and platinum as an anode electrode to electrolyze light water or heavy water (see FIG. 1)), when the hydrogen storage alloy is sufficiently filled with light hydrogen or deuterium, the plating solution is poured into the electrolytic solution to metal-plat the surface of the hydrogen storage alloy (see FIG. 2). If the plating solution cannot be dissolved in the electrolytic solution, the hydrogen storage alloy is taken out of the electrolytic solution and immersed in a separately prepared plating solution to perform metal plating on the surface of the hydrogen storage alloy (see FIG. 3). ). After filling the hydrogen storage alloy with light hydrogen or deuterium in this way, the surface of the hydrogen storage alloy is metal-plated, so that light hydrogen or deuterium is not released to the outside from the inside of the hydrogen storage alloy through the surface due to diffusion. As a result, the filling rate of hydrogen into the hydrogen storage alloy is increased. If necessary, before filling the hydrogen-absorbing alloy with light hydrogen or deuterium, if the hydrogen-absorbing alloy is heat-treated, dislocations in the base material that hinder filling, and cracks and impurities on the surface disappear, The filling rate of hydrogen into the hydrogen storage alloy is further increased.

【0008】[0008]

【実施例】次に本発明の水素吸蔵合金への水素高充填方
法の実施例を図1〜図3により説明すると、図1の1が
電源、7が電気分解セル、2が電気分解セル7中の発熱
量を計測するために設置した熱電対、3が閉鎖系での発
生熱量の評価に用いるために設置した冷却管、4が電気
分解の結果発生した水素と酸素とを水に戻すために設置
した触媒、5が陽極電極、6が水素吸蔵合金(パラジウ
ムまたは合金)、8が電解溶液(軽水または重水)であ
る。
EXAMPLE An example of a method for highly filling hydrogen into a hydrogen storage alloy according to the present invention will be described with reference to FIGS. 1 to 3. 1 in FIG. 1 is a power source, 7 is an electrolysis cell, and 2 is an electrolysis cell 7. A thermocouple installed to measure the amount of heat generated inside, a cooling pipe installed to use 3 for evaluating the amount of heat generated in a closed system, and 4 to return hydrogen and oxygen generated as a result of electrolysis to water The catalyst installed in the above, 5 is an anode electrode, 6 is a hydrogen storage alloy (palladium or alloy), and 8 is an electrolytic solution (light water or heavy water).

【0009】図2、図3の9がメッキ溶液、図2の10
がバルブである。水素吸蔵合金6に軽水素または重水素
を充填するに当たっては、先ず図1に示すように水素吸
蔵合金(パラジウムまたはその合金)6を陰極電極と
し、白金を陽極電極5とし、電解溶液(軽水または重
水)8を電気分解セル7に注入し、電解溶液8を電気分
解して、軽水素または重水素を水素吸蔵合金6に十分に
充填する。
2 and 3 are plating solutions, and 10 in FIG.
Is a valve. When filling the hydrogen storage alloy 6 with light hydrogen or deuterium, first, as shown in FIG. 1, the hydrogen storage alloy (palladium or its alloy) 6 is used as the cathode electrode, platinum is used as the anode electrode 5, and the electrolytic solution (light water or (Heavy water) 8 is injected into the electrolysis cell 7, and the electrolytic solution 8 is electrolyzed to sufficiently fill the hydrogen storage alloy 6 with light hydrogen or deuterium.

【0010】次いで図2に示すようにメッキ溶液9を電
解溶液8中へ投入して、水素吸蔵合金6の表面を金属メ
ッキする。またメッキ溶液9が電解溶液8に溶解不可能
であれば、水素吸蔵合金6を電解溶液8から取り出し
て、図3に示すように水素吸蔵合金6を別に用意したメ
ッキ溶液9中に浸漬して、水素吸蔵合金6の表面を金属
メッキする。
Then, as shown in FIG. 2, the plating solution 9 is put into the electrolytic solution 8 to metal-plat the surface of the hydrogen storage alloy 6. If the plating solution 9 cannot be dissolved in the electrolytic solution 8, the hydrogen storage alloy 6 is taken out from the electrolytic solution 8 and the hydrogen storage alloy 6 is immersed in the separately prepared plating solution 9 as shown in FIG. , The surface of the hydrogen storage alloy 6 is metal-plated.

【0011】このように水素吸蔵合金6に軽水素または
重水素を充填した後、水素吸蔵合金6の表面を金属メッ
キするので、軽水素または重水素が拡散により水素吸蔵
合金6の内部から表面を経て外部へ放出されることがな
くて、水素吸蔵合金への水素の充填率が高められる。な
お必要に応じて水素吸蔵合金6に軽水素または重水素を
充填する前に、水素吸蔵合金6を熱処理してもよく、こ
のようにすれば、充填の妨げになる母材内の転位、及び
表面にあるクラックや不純物がなくなって、水素吸蔵合
金6への水素の充填率がさらに高められる。
After filling the hydrogen storage alloy 6 with light hydrogen or deuterium in this way, the surface of the hydrogen storage alloy 6 is metal-plated, so that the light hydrogen or deuterium diffuses from the inside of the hydrogen storage alloy 6 to the surface. After that, the hydrogen is not released to the outside, and the filling rate of hydrogen in the hydrogen storage alloy is increased. If necessary, the hydrogen storage alloy 6 may be heat-treated before filling the hydrogen storage alloy 6 with light hydrogen or deuterium. In this case, dislocations in the base material that hinder filling and The cracks and impurities on the surface are eliminated, and the filling rate of hydrogen into the hydrogen storage alloy 6 is further increased.

【0012】前記電気分解セル7の寸法は、内径φ30
mm、深さ100mm、厚さ1mm、材質はガラスであ
る。電解溶液8には、1規定のLiOD重水溶液を用い
た。陰極電極6に用いたパラジウムの寸法は、φ3m
m、長さ25mmであり、これに白金線をまき付けて、
リード線とした。陽極5には、白金を用いた。
The size of the electrolysis cell 7 is 30 mm in inner diameter.
mm, depth 100 mm, thickness 1 mm, and the material is glass. As the electrolytic solution 8, a 1N LiOD heavy aqueous solution was used. The size of palladium used for the cathode electrode 6 is φ3 m.
m, the length is 25 mm, and the platinum wire is sprinkled on it.
The lead wire. Platinum was used for the anode 5.

【0013】パラジウムは、大気中で900℃に加熱し
た後、純水中クエンチまたは溶融後に純水中クエンチと
いう熱処理を施した。全電解時間は、24時間で、最初
の23時間での電解電流値は、0.1mAとし、残り1
時間での電解電流値は、500mAとした。電気分解終
了後、パラジウム陰極電極6及び白金陽極電極5を純水
(軽水)により洗浄した後、0.1mol/lの硫酸銅
水溶液に浸漬して、電解電流0.1mA、メッキ時間5
secでメッキを行った。
Palladium was heated to 900 ° C. in the atmosphere and then subjected to a heat treatment called quenching in pure water or quenching in pure water after melting. The total electrolysis time is 24 hours, the electrolysis current value in the first 23 hours is 0.1 mA, and the remaining 1
The electrolytic current value over time was 500 mA. After completion of the electrolysis, the palladium cathode electrode 6 and the platinum anode electrode 5 were washed with pure water (light water), and then immersed in a 0.1 mol / l copper sulfate aqueous solution to give an electrolytic current of 0.1 mA and a plating time of 5
Plated in sec.

【0014】図4は、本発明により処理したパラジウム
と、従来の方法により処理したパラジウムとの充填率を
比較した説明図である。この図から、本発明の方法で
は、従来の方法に比べて充填率が向上していることが判
る。
FIG. 4 is an explanatory view comparing the filling rates of palladium treated according to the present invention and palladium treated by the conventional method. From this figure, it can be seen that the method of the present invention has an improved filling rate as compared with the conventional method.

【0015】[0015]

【発明の効果】本発明のた水素吸蔵合金への水素高充填
方法は前記のように水素吸蔵合金(パラジウムまたはそ
の合金)を陰極電極とし、白金を陽極電極とし、軽水ま
たは重水を電気分解して、水素吸蔵合金に軽水素または
重水素を十分に充填したら、メッキ溶液を電解液中へ投
入して、水素吸蔵合金の表面を金属メッキするか、メッ
キ溶液中に水素吸蔵合金を浸漬して、水素吸蔵合金の表
面を金属メッキするので、軽水素または重水素を拡散に
より水素吸蔵合金の内部から表面を経て外部へ放出する
ことがなくて、水素吸蔵合金への水素の充填率を高める
ことができる。
As described above, the method for highly filling hydrogen into a hydrogen storage alloy of the present invention uses a hydrogen storage alloy (palladium or its alloy) as a cathode electrode, platinum as an anode electrode, and electrolysis of light water or heavy water. Then, when the hydrogen storage alloy is sufficiently filled with light hydrogen or deuterium, the plating solution is put into the electrolytic solution and the surface of the hydrogen storage alloy is metal-plated, or the hydrogen storage alloy is immersed in the plating solution. Since the surface of the hydrogen storage alloy is metal-plated, light hydrogen or deuterium is not released from the inside of the hydrogen storage alloy through the surface to the outside by diffusion, and the filling rate of hydrogen into the hydrogen storage alloy is increased. You can

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の水素吸蔵合金への水素高充填方法の電
気分解工程を示す縦断側面図である。
FIG. 1 is a vertical cross-sectional side view showing an electrolysis step of a method for highly filling hydrogen into a hydrogen storage alloy of the present invention.

【図2】同水素高充填方法のメッキ工程の一例を示す縦
断側面図である。
FIG. 2 is a vertical cross-sectional side view showing an example of a plating step of the method of highly filling hydrogen.

【図3】同水素高充填方法のメッキ工程の他の例を示す
縦断側面図である。
FIG. 3 is a vertical cross-sectional side view showing another example of the plating step of the method for highly filling hydrogen.

【図4】本発明により処理したパラジウムと、従来の方
法により処理したパラジウムとの充填率を比較した説明
図である。
FIG. 4 is an explanatory diagram comparing the filling rates of palladium treated according to the present invention and palladium treated by a conventional method.

【図5】従来の水素吸蔵合金への水素充填方法を示す縦
断側面図である。
FIG. 5 is a vertical cross-sectional view showing a conventional method for filling hydrogen into a hydrogen storage alloy.

【符号の説明】[Explanation of symbols]

1 電源 2 熱電対 3 冷却管 4 触媒 5 陽極電極 6 水素吸蔵合金(陰極電極) 7 電気分解セル 8 電解溶液 9 メッキ液 10 バルブ 1 Power Supply 2 Thermocouple 3 Cooling Tube 4 Catalyst 5 Anode Electrode 6 Hydrogen Storage Alloy (Cathode Electrode) 7 Electrolysis Cell 8 Electrolysis Solution 9 Plating Solution 10 Valve

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 水素吸蔵合金を陰極電極とし、軽水また
は重水を電気分解して、同陰極電極に軽水素または重水
素を充填し、次いで陰極電極を金属メッキすることを特
徴とした水素吸蔵合金への水素高充填方法。
1. A hydrogen storage alloy, characterized in that a hydrogen storage alloy is used as a cathode electrode, light water or heavy water is electrolyzed, the same cathode electrode is filled with light hydrogen or deuterium, and then the cathode electrode is metal-plated. High filling method for hydrogen.
JP6312046A 1994-12-15 1994-12-15 High charging method for hydrogen in hydrogen storage alloy Withdrawn JPH08166478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6312046A JPH08166478A (en) 1994-12-15 1994-12-15 High charging method for hydrogen in hydrogen storage alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6312046A JPH08166478A (en) 1994-12-15 1994-12-15 High charging method for hydrogen in hydrogen storage alloy

Publications (1)

Publication Number Publication Date
JPH08166478A true JPH08166478A (en) 1996-06-25

Family

ID=18024572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6312046A Withdrawn JPH08166478A (en) 1994-12-15 1994-12-15 High charging method for hydrogen in hydrogen storage alloy

Country Status (1)

Country Link
JP (1) JPH08166478A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001026117A1 (en) * 1999-10-04 2001-04-12 Daikin Plant Co., Ltd. Thermal energy extraction apparatus, hot-water supply, and electric generator
JP2004527661A (en) * 2001-05-30 2004-09-09 エネルゲティックス テクノロジーズ, エル.エル.シー. Pulse electrolytic layer
CN105780043A (en) * 2016-02-04 2016-07-20 福建方明环保科技股份有限公司 Equipment and method for extracting deuterium-gas-containing gas from water

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001026117A1 (en) * 1999-10-04 2001-04-12 Daikin Plant Co., Ltd. Thermal energy extraction apparatus, hot-water supply, and electric generator
JP2004527661A (en) * 2001-05-30 2004-09-09 エネルゲティックス テクノロジーズ, エル.エル.シー. Pulse electrolytic layer
JP2010174379A (en) * 2001-05-30 2010-08-12 Energetics Technologies Llc Pulsed electrolytic cell
CN105780043A (en) * 2016-02-04 2016-07-20 福建方明环保科技股份有限公司 Equipment and method for extracting deuterium-gas-containing gas from water

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