JP2000044201A - Hydrogen generator - Google Patents
Hydrogen generatorInfo
- Publication number
- JP2000044201A JP2000044201A JP10210766A JP21076698A JP2000044201A JP 2000044201 A JP2000044201 A JP 2000044201A JP 10210766 A JP10210766 A JP 10210766A JP 21076698 A JP21076698 A JP 21076698A JP 2000044201 A JP2000044201 A JP 2000044201A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen
- stirring
- rotor
- catalyst
- reactor
- 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
- 239000001257 hydrogen Substances 0.000 title claims abstract description 41
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 41
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000003054 catalyst Substances 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000011941 photocatalyst Substances 0.000 claims abstract description 9
- 239000007791 liquid phase Substances 0.000 claims abstract description 8
- 239000010419 fine particle Substances 0.000 claims description 5
- 229920000557 Nafion® Polymers 0.000 claims description 3
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010303 mechanochemical reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は水素発生装置、更に
詳細には、いわゆる光触媒材料などを用いて水素を効果
的に発生させ、水素を原料とする燃料電池等に用いられ
る水素発生装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen generator, and more particularly, to a hydrogen generator used for a fuel cell or the like using hydrogen as a raw material, which effectively generates hydrogen by using a so-called photocatalytic material or the like.
【０００２】[0002]
【従来の技術】従来、半導体光触媒とよばれる材料のな
かで、Ｃｕ2Ｏを使った例では、水の可視光全分解反応
における量子収率は０．３％程度といわれてきた。2. Description of the Related Art Conventionally, in the case of using Cu 2 O among materials called semiconductor photocatalysts, it has been said that the quantum yield in the visible light total decomposition reaction of water is about 0.3%.
【０００３】しかし、近年これらの材料をいれた反応器
内を攪拌することにより、その水素発生量が増加し、数
１０μｍｏｌ／ｈ程度の値がえられるという報告がある
（八嶋政明、ら「Ｃｕ2Ｏを用いる水の可視光全分解反
応の高効率化」、ほか。日本化学会、春季大会、講演番
号２Ｈ２０１〜２Ｈ２０８（１９９８））。その機構の
詳細は不明だが、攪拌という機械的運動エネルギーが何
らかのメカニズムによって化学反応に使われていると考
えられている。[0003] However, in recent years, it has been reported that stirring a reactor containing these materials increases the amount of generated hydrogen, and a value of about several tens of mol / h can be obtained (Yashima Masaaki, et al., "Cu Higher Efficiency of Total Visible Light Decomposition Reaction of Water Using 2 O ", et al. The Chemical Society of Japan, Spring Meeting, Lecture No. 2H201 to 2H208 (1998)). The details of the mechanism are unknown, but it is thought that the mechanical kinetic energy of agitation is used in chemical reactions by some mechanism.
【０００４】例えば、上記文献によれば、回転子を１個
入れた反応器内で通常のマグネティックスターラーを用
いて１８００ｒｐｍの回転数で回転させたところ、可視
光（＞４８０ｎｍ）領域で数１０μｍｏｌ／ｈの水素発
生があり、１１１時間の反応で使用した触媒（Ｃｕ
2Ｏ，７００μｍｏｌ）を上回る水素、酸素（Ｈ2：１９
２０μｍｏｌ，Ｏ2：９３０μｍｏｌ）の発生があった
という。また、Ｃｕ2Ｏなどの触媒を用いると、光の照
射を止めても（攪拌のみでも）水素の発生がみられた。For example, according to the above-mentioned literature, when a conventional magnetic stirrer is used to rotate a reactor at 1800 rpm in a reactor containing one rotor, several tens μmol / m in the visible light (> 480 nm) region. h, and the catalyst (Cu
Hydrogen, oxygen (H 2 : 19) exceeding 2 O (700 μmol)
20 μmol, O 2 : 930 μmol). Further, when a catalyst such as Cu 2 O was used, generation of hydrogen was observed even when the irradiation of light was stopped (even with only stirring).
【０００５】しかしながら、水素の発生効率は十分とは
いえず、またその発生のメカニズムを考慮すると、第１
にメカノーケミカル反応であること、第２に光触媒の場
合にはメカノーケミカル反応に加えて光触媒効果によっ
て反応がエンハンス（ｅｎｈａｎｃｅ）されるメカニズ
ムが推測できる。[0005] However, the efficiency of hydrogen generation is not sufficient.
Second, in the case of a photocatalyst, it can be inferred that the reaction is enhanced by a photocatalytic effect in addition to the mechanochemical reaction.
【０００６】[0006]
【発明が解決しようとする課題】本願は上記知見に鑑
み、触媒と液層中の回転子との接触を増大させることを
主眼とし、水素発生の効率アップのためになされたもの
である。SUMMARY OF THE INVENTION In view of the above findings, the present invention has been made to increase the contact between a catalyst and a rotor in a liquid layer and to improve the efficiency of hydrogen generation.
【０００７】[0007]
【発明が解決するための手段】上記課題を解決するた
め、本発明による水素発生装置は、液相より水素を発生
させる光触媒および／または磁性微粒子触媒、さらに液
状の水素発生材料を収納するための反応器と前記液状水
素発生材料及び触媒を撹拌するための撹拌装置部を有す
る水素発生装置において、前記撹拌装置部は撹拌方向を
断続的に反転させるようになっていることを特徴とす
る。In order to solve the above-mentioned problems, a hydrogen generator according to the present invention comprises a photocatalyst for generating hydrogen from a liquid phase and / or a magnetic fine particle catalyst, and a liquid hydrogen generating material. In a hydrogen generator having a reactor and a stirring device for stirring the liquid hydrogen generating material and the catalyst, the stirring device is configured to intermittently reverse a stirring direction.
【０００８】[0008]
【実施例】図１に本願の実施例を示す。本願は本実施例
に限定されるものではなく、容易に類推できる範囲で変
形が施された構成であってもよい。FIG. 1 shows an embodiment of the present invention. The present application is not limited to the present embodiment, and may have a configuration modified in a range that can be easily analogized.
【０００９】１は反応器、２はモータ、３，３’，３”
はともに回転子、４はモータと回転子をつなぐ回転軸で
あり、５で示す双方向に回転させる。回転方向は、６の
モータ２の電気回路によって制御される（撹拌装置部は
上述のモータ２、回転子３，３’、３”、回転軸４、電
気回路６により構成される）。７はモータ２を支えると
ともに反応器１を覆うふたであるが、好ましくは密閉構
造とするのがよい、８は発生したガスの出口であって、
図示していない分析器、あるいは貯蔵容器に導入され
る。９は液相より水素を発生させる光触媒および／また
は磁性微粒子触媒、１０は液状の水素発生材料、例えば
分解される水である。1 is a reactor, 2 is a motor, 3, 3 ', 3 "
Are both a rotor, and 4 is a rotating shaft connecting the motor and the rotor. The direction of rotation is controlled by an electric circuit of the motor 6 (the stirring unit is constituted by the motor 2, the rotors 3, 3 ', 3 ", the rotating shaft 4, and the electric circuit 6). A lid that supports the motor 2 and covers the reactor 1, and preferably has a closed structure. Reference numeral 8 denotes an outlet of the generated gas.
It is introduced into an analyzer (not shown) or a storage container. 9 is a photocatalyst and / or a magnetic fine particle catalyst for generating hydrogen from a liquid phase, and 10 is a liquid hydrogen generating material, for example, water to be decomposed.
【００１０】１１は反応器１内を光照射する光照射装置
部（光源）であって、通常は可視光である。この光照射
装置部は反応器内を照射可能なように構成されており、
たとえば反応器が透明の場合には、図１に示すように外
部に設けることができるが、反応器内に設けてもよい。
しかし、Ｆｅ3Ｏ4をはじめ磁性材料で構成される触媒
（磁性微粒子触媒）では必ずしも必要な構成部品ではな
い。Reference numeral 11 denotes a light irradiation unit (light source) for irradiating the inside of the reactor 1 with light, which is usually visible light. This light irradiation device is configured to be able to irradiate the inside of the reactor,
For example, when the reactor is transparent, it can be provided outside as shown in FIG. 1, but may be provided inside the reactor.
However, a catalyst (magnetic fine particle catalyst) composed of a magnetic material such as Fe 3 O 4 is not always a necessary component.
【００１１】図２、図３は、図１の３ないし３”の回転
子の構成例であって、円板状の回転子を複数層に設けた
図を示している。図２は円板状の回転子の表面及び裏面
に、例えば９０度ごとにフィン３１を設けた例で、フィ
ンの方向は上段（Ａ−Ａ’方向）と下段（Ｂ−Ｂ’方
向）とは角度をもって構成されてよい。また、フィンの
構造はその断面が三角形状としたが、より大きな面積で
あっても、曲線であっても、それらの組み合わせであっ
てもよい。FIGS. 2 and 3 show examples of the configuration of the rotor 3 to 3 ″ in FIG. 1 in which disk-shaped rotors are provided in a plurality of layers. FIG. In the example in which the fins 31 are provided on the front and back surfaces of the rotor in the form of, for example, every 90 degrees, the direction of the fins is configured such that the upper stage (AA ′ direction) and the lower stage (BB ′ direction) have angles. The fin structure has a triangular cross section, but may have a larger area, a curved line, or a combination thereof.
【００１２】図３は円板状の回転子に表面から裏面に貫
通する穴部３２を設けた中空状の回転子の構成であっ
て、図２と同様上段（Ａ−Ａ’方向）と下段（Ｂ−Ｂ’
方向）とで角度を持たせるのがよい。いずれも液の流れ
を多くつくり、触媒機能をより活性にするためのもので
ある。FIG. 3 shows a configuration of a hollow rotor in which a hole 32 penetrating from a front surface to a rear surface is provided in a disk-shaped rotor. As shown in FIG. 2, an upper stage (AA 'direction) and a lower stage are shown. (BB '
Direction) and an angle. All of these are intended to increase the flow of the liquid and make the catalytic function more active.
【００１３】実験によれば、図３の回転子を用いて、前
記文献と同様な実験を行った。触媒にはナフィオンをコ
ーティングしたＣｕ2Ｏを用い、回転方向を数秒から数
１０秒ごとに逆転させて水素発生量を調べたところ、少
なくとも前記文献にくらべて数倍量の発生を確認した。
なお、水素発生量の測定はガスクロマトグラフィ（島津
製作所ＧＣ−８Ａ）を用いて行った。According to the experiment, an experiment similar to that of the above-mentioned document was conducted using the rotor shown in FIG. When Nafion-coated Cu 2 O was used as the catalyst, the rotation direction was reversed every few seconds to several tens of seconds, and the amount of generated hydrogen was examined.
In addition, the measurement of the amount of generated hydrogen was performed using gas chromatography (Shimadzu Corporation GC-8A).
【００１４】触媒材料として、ナフィオンをコーティン
グしたＣｕ2Ｏのほか、ＣｕＭＯ2（Ｍ：Ｆｅ，Ｃｏ，Ｎ
ｉ）、Ｍ’ＷＯ2（Ｍ’：Ｃｏ，Ｎｉ）、Ｃｏ4Ｎｂ
2Ｏ9、ＦｅＭ”Ｏ4（Ｍ”：Ａｌ，Ｇａ，Ｗ）、から選
ばれた少なくとも１種からなる材料でも同様に効率的な
水素発生を確認した。また、光照射の不要のＦｅ3Ｏ4な
どを用いた触媒であっても従来のスターラーを用いた反
応器より高い水素発生を示した。As a catalyst material, in addition to Cu 2 O coated with Nafion, CuMO 2 (M: Fe, Co, N
i), M'WO 2 (M ': Co, Ni), Co 4 Nb
Efficient hydrogen generation was also confirmed with a material composed of at least one selected from 2 O 9 and FeM ″ O 4 (M ″: Al, Ga, W). Further, even with a catalyst using Fe 3 O 4 or the like which does not require light irradiation, hydrogen generation was higher than in a reactor using a conventional stirrer.
【００１５】[0015]
【発明の効果】光触媒材料、磁性微粒子触媒材料、等を
用いて光照射および／または攪拌等の機械的操作によっ
て液相から水素を発生させる装置において、攪拌の方向
を断続的に反転させ、また回転子には、穴および／また
はフィンを設けたことにより、液相での触媒反応が活性
化されたため、効率的な水素発生が可能となった。According to the present invention, in a device for generating hydrogen from a liquid phase by mechanical operation such as light irradiation and / or stirring using a photocatalyst material, a magnetic fine particle catalyst material, or the like, the direction of stirring is intermittently reversed. Since the rotor was provided with holes and / or fins, the catalytic reaction in the liquid phase was activated, so that efficient hydrogen generation became possible.
【図１】本発明による水素発生装置の一実施例の断面
図。FIG. 1 is a sectional view of one embodiment of a hydrogen generator according to the present invention.
【図２】回転子の一例の斜視図。FIG. 2 is a perspective view of an example of a rotor.
【図３】回転子の他の例の斜視図。FIG. 3 is a perspective view of another example of a rotor.
１ 反応器 ２ モータ ３，３’，３” 回転子 ４ 回転軸 ６ モータの電気回路 ８ 発生したガスの出口 ９ 触媒 １０ 分解される水 １１ 光源 Reference Signs List 1 reactor 2 motor 3, 3 ', 3 "rotor 4 rotating shaft 6 motor electric circuit 8 outlet of generated gas 9 catalyst 10 decomposed water 11 light source
───────────────────────────────────────────────────── フロントページの続き (72)発明者 荒川 正泰 東京都新宿区西新宿三丁目19番２号 日本 電信電話株式会社内 Ｆターム(参考） 4G069 AA02 AA08 BA22A BA48A BA48C BB04A BB06A BB06B BC17A BC31A BC55A BC60A BC66A BC67A BC68A BE34A CC32 CC33 DA08 EA01Y EB18Y FB23 FB79 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masayasu Arakawa 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Japan Telegraph and Telephone Co., Ltd. F-term (reference) 4G069 AA02 AA08 BA22A BA48A BA48C BB04A BB06A BB06B BC17A BC31A BC55A BC60A BC66A BC67A BC68A BE34A CC32 CC33 DA08 EA01Y EB18Y FB23 FB79
Claims (6)
／または磁性微粒子触媒、さらに液状の水素発生材料を
収納するための反応器と前記液状水素発生材料及び触媒
を撹拌するための撹拌装置部を有する水素発生装置にお
いて、前記撹拌装置部は撹拌方向を断続的に反転させる
ようになっていることを特徴とする水素発生装置。1. A reactor for accommodating a photocatalyst and / or a magnetic fine particle catalyst for generating hydrogen from a liquid phase, a reactor for accommodating a liquid hydrogen generating material, and a stirring device for stirring the liquid hydrogen generating material and the catalyst. The hydrogen generator according to claim 1, wherein the stirring unit is configured to intermittently reverse the stirring direction.
部を有することを特徴とする請求項１記載の水素発生装
置。2. The hydrogen generator according to claim 1, further comprising a light irradiation unit capable of irradiating the inside of the reactor with light.
転子を直接駆動するようになっていることを特徴とする
請求項１から２項記載のいずれかの水素発生装置。3. The hydrogen generator according to claim 1, wherein the stirring device directly drives a rotor connected to a motor.
表面から裏面に貫通する穴を有していることを特徴とす
る請求項３項記載の水素発生装置。4. The hydrogen generator according to claim 3, wherein the rotor has a fin and / or a hole penetrating from the front surface to the back surface.
転子に設けられた、穴および／またはフィンは互いに各
層で重ならないように構成されたことを特徴とする請求
項４記載の水素発生装置。5. The hydrogen according to claim 4, wherein the rotor is composed of a plurality of layers, and holes and / or fins provided on the rotor are configured not to overlap with each other in each layer. Generator.
媒は、Ｃｕ2Ｏ、ナフィオンをコーティングしたＣｕ
2Ｏ、ＣｕＭＯ2（Ｍ：Ｆｅ，Ｃｏ，Ｎｉ）、Ｍ’ＷＯ4
（Ｍ’：Ｃｏ，Ｎｉ）、Ｃｏ4Ｎｂ2Ｏ9、ＦｅＭ”Ｏ
4（Ｍ”：Ａｌ，Ｇａ，Ｗ）、Ｆｅ3Ｏ4から選ばれた少
なくとも１種からなる材料で構成されたことを特徴とす
る請求項１から５項記載のいずれかの記載の水素発生装
置。6. The photocatalyst or the magnetic catalyst provided in the reactor is made of Cu 2 O, Nafion-coated Cu.
2 O, CuMO 2 (M: Fe, Co, Ni), M′WO 4
(M ': Co, Ni) , Co 4 Nb 2 O 9, FeM "O
4 (M ": Al, Ga , W), Fe 3 O 4 from selected at least one comprising that material composed of hydrogen generation of any description described 5 of Claims 1, wherein apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10210766A JP2000044201A (en) | 1998-07-27 | 1998-07-27 | Hydrogen generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10210766A JP2000044201A (en) | 1998-07-27 | 1998-07-27 | Hydrogen generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000044201A true JP2000044201A (en) | 2000-02-15 |
Family
ID=16594786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10210766A Pending JP2000044201A (en) | 1998-07-27 | 1998-07-27 | Hydrogen generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000044201A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246355A (en) * | 2007-03-29 | 2008-10-16 | Tokyo Electric Power Co Inc:The | Photocatalytic reaction apparatus |
| KR101541746B1 (en) | 2014-05-02 | 2015-08-05 | 금오공과대학교 산학협력단 | Photocatalytic hydrogen production from water under visible light and hydrogen production from water using it |
| WO2016084025A2 (en) | 2014-11-28 | 2016-06-02 | Ulusal Bor Arastirma Enstitusu | A cartridge structure designed for generation of hydrogen gas |
| CN110038573A (en) * | 2019-05-15 | 2019-07-23 | 沈阳工大蓝金环保产业技术研究院有限公司 | Heterogeneous fenton catalyst Nafion/Fe3+Composite membrane and preparation method thereof |
-
1998
- 1998-07-27 JP JP10210766A patent/JP2000044201A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246355A (en) * | 2007-03-29 | 2008-10-16 | Tokyo Electric Power Co Inc:The | Photocatalytic reaction apparatus |
| KR101541746B1 (en) | 2014-05-02 | 2015-08-05 | 금오공과대학교 산학협력단 | Photocatalytic hydrogen production from water under visible light and hydrogen production from water using it |
| WO2016084025A2 (en) | 2014-11-28 | 2016-06-02 | Ulusal Bor Arastirma Enstitusu | A cartridge structure designed for generation of hydrogen gas |
| WO2016084025A3 (en) * | 2014-11-28 | 2016-07-14 | Ulusal Bor Arastirma Enstitusu | A cartridge structure designed for generation of hydrogen gas |
| CN110038573A (en) * | 2019-05-15 | 2019-07-23 | 沈阳工大蓝金环保产业技术研究院有限公司 | Heterogeneous fenton catalyst Nafion/Fe3+Composite membrane and preparation method thereof |
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