JPH05106073A - Ozonizer - Google Patents
OzonizerInfo
- Publication number
- JPH05106073A JPH05106073A JP3266382A JP26638291A JPH05106073A JP H05106073 A JPH05106073 A JP H05106073A JP 3266382 A JP3266382 A JP 3266382A JP 26638291 A JP26638291 A JP 26638291A JP H05106073 A JPH05106073 A JP H05106073A
- Authority
- JP
- Japan
- Prior art keywords
- anode
- gas diffusion
- polymer electrolyte
- solid polymer
- electrolyte membrane
- 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.)
- Granted
Links
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]
【産業上の利用分野】本発明は、新規なオゾン発生装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel ozone generator.
【０００２】[0002]
【従来の技術】従来、オゾンを工業的に製造する装置と
しては、気体酸素または空気を無声放電と呼ばれる高電
圧交流放電の中に通すものがある。2. Description of the Related Art Conventionally, as a device for industrially producing ozone, there is a device in which gaseous oxygen or air is passed through a high voltage AC discharge called a silent discharge.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上述した従来
のオゾン発生装置は高電圧を必要とし、装置が高価であ
り、また、得られるオゾンが少量であるという問題があ
る。However, the above-mentioned conventional ozone generator requires a high voltage, the apparatus is expensive, and a small amount of ozone can be obtained.
【０００４】本発明はこのような事情に鑑み、安価な装
置でオゾンを効率よく得ることができるオゾン発生装置
を提供することを目的とする。In view of such circumstances, an object of the present invention is to provide an ozone generator capable of efficiently obtaining ozone with an inexpensive device.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成する本発
明に係るオゾン発生装置は、固体高分子電解質膜の片面
に反応膜及びガス拡散膜からなるガス拡散電極を接合し
てなる接合体と、この接合体の固体高分子電解質膜に対
向して若しくは接触して設けられた酸化鉛付き電極と、
上記ガス拡散電極を陰極、上記酸化鉛付き電極を陽極と
して電圧を印加する電源と、上記ガス拡散電極を介して
固体高分子電解質膜に空気若しくは酸素を供給する酸素
供給手段と、上記接合体の固体高分子電解質膜側及び酸
化鉛付き電極に接触するよう水を供給する水供給手段と
を有することを特徴とする。An ozone generator according to the present invention that achieves the above object comprises a bonded body comprising a solid polymer electrolyte membrane and a gas diffusion electrode comprising a reaction membrane and a gas diffusion membrane bonded to one surface of the solid polymer electrolyte membrane. An electrode with lead oxide provided facing or in contact with the solid polymer electrolyte membrane of this joined body,
The gas diffusion electrode as a cathode, a power source for applying a voltage with the lead oxide electrode as an anode, an oxygen supply means for supplying air or oxygen to the solid polymer electrolyte membrane through the gas diffusion electrode, and Water supply means for supplying water so as to contact the solid polymer electrolyte membrane side and the electrode with lead oxide.
【０００６】[0006]
【作用】前記構成の装置において、陽極側に水供給手段
で水を供給すると共に、陰極側に酸素供給手段で酸素若
しくは空気を供給すると、陽極では、 ５Ｈ2 Ｏ→１０Ｈ+ ＋Ｏ3 ＋Ｏ2 ＋１０ｅ の反応が生じ、発生したＨ+ は固体高分子電解質膜を通
過してガス拡散電極との界面に移動し、陰極側では、 １０Ｈ+ ＋５／２Ｏ2 ＋１０ｅ→５Ｈ2 Ｏ の反応が生じる。これにより、陽極側からオゾンＯ3 を
得ることができる。In the apparatus having the above-mentioned structure, when water is supplied to the anode side by the water supply means and oxygen or air is supplied to the cathode side by the oxygen supply means, 5H 2 O → 10H + + O 3 + O 2 + 10e at the anode. The generated H + passes through the solid polymer electrolyte membrane and moves to the interface with the gas diffusion electrode, and a reaction of 10H + + 5 / 2O 2 + 10e → 5H 2 O occurs on the cathode side. As a result, ozone O 3 can be obtained from the anode side.
【０００７】[0007]
【実施例】以下、本発明を実施例に基づいて説明する。EXAMPLES The present invention will be described below based on examples.
【０００８】図１には一実施例に係るオゾン発生装置の
概略構成を示す。同図に示すように、固体高分子電解質
膜１の片面には反応膜２及びガス拡散膜３からなるガス
拡散電極４の反応膜２側が接合され、ハーフセル５が形
成されている。ハーフセル５のガス拡散電極４側にはガ
スチャンバ６が設けられており、このガスチャンバ６に
は図示しない空気供給源より空気を導入する空気導入口
６ａ及び余った空気を排出する空気排出口６ｂが設けら
れている。一方、ハーフセル５の固体高分子電解質膜１
側には陽極チャンバ７が形成されており、この陽極チャ
ンバ７には水を導入するための水導入口７ａ及び余った
水及び発生したオゾンや酸素を排出する水排出口７ｂが
設けられている。また、陽極チャンバ７内には固体高分
子電解質膜１に対向して陽極８が設けられている。ここ
で、陽極８としてはＰｂＯ2 をコーティングしたＴｉ電
極を用いている。そして、陽極８及びガス拡散電極４に
は電源９が接続されている。FIG. 1 shows a schematic structure of an ozone generator according to an embodiment. As shown in the figure, the reaction membrane 2 side of the gas diffusion electrode 4 composed of the reaction membrane 2 and the gas diffusion membrane 3 is bonded to one surface of the solid polymer electrolyte membrane 1 to form a half cell 5. A gas chamber 6 is provided on the gas diffusion electrode 4 side of the half cell 5, and an air inlet 6a for introducing air from an air supply source (not shown) and an air outlet 6b for discharging excess air are provided in the gas chamber 6. Is provided. On the other hand, the solid polymer electrolyte membrane 1 of the half cell 5
An anode chamber 7 is formed on the side, and this anode chamber 7 is provided with a water inlet 7a for introducing water and a water outlet 7b for discharging excess water and generated ozone and oxygen. .. Further, an anode 8 is provided in the anode chamber 7 so as to face the solid polymer electrolyte membrane 1. Here, a Ti electrode coated with PbO 2 is used as the anode 8. A power source 9 is connected to the anode 8 and the gas diffusion electrode 4.
【０００９】本発明で固体高分子電解質膜とは水が共存
しても液体にならない電解質膜をいい、例えばパーフル
オロスルフォン酸ポリマー膜（ナフィオン：商品名）を
挙げることができるが、他にスチレン系イオン交換膜等
の一般のイオン交換膜も使用できる。本実施例では、固
体高分子電解質膜１として、厚さ０．１７mmのナフィオ
ン１１７（デュポン社製）を用いた。In the present invention, the solid polymer electrolyte membrane means an electrolyte membrane which does not become a liquid even when water coexists, and examples thereof include a perfluorosulfonic acid polymer membrane (Nafion: trade name). A general ion exchange membrane such as a system ion exchange membrane can also be used. In this example, as the solid polymer electrolyte membrane 1, Nafion 117 (manufactured by DuPont) having a thickness of 0.17 mm was used.
【００１０】また、ガス拡散電極とは一般に反応膜とガ
ス拡散膜とを接合してなるもので、従来から知られてい
るもの（例えば、特開昭６２−１５４５７１号公報参
照）でよい。このうち、ガス拡散膜は、一般に疎水性カ
ーボン及びフッ素樹脂などの疎水性樹脂で形成され、通
気性及び導電性を有するものの通水性は備えぬという特
性を持ち、一方、反応膜は、親水性カーボン等の親水性
材料に、例えば白金系の触媒微粒子、または該触媒微粒
子を担持させた親水性カーボン微粒子を担持させたもの
であり、電解質や水などを透過させる性質を有する。本
実施例では、反応膜２としては、平均粒径５０Åの白金
と平均粒径４５０Åの親水性カーボンブラックと疎水性
カーボンブラックと平均粒径０．３μｍのポリテトラフ
ルオロエチレンとが０．７：７：４：３の割合で構成さ
れるもの、ガス拡散膜３としては、平均粒径４２０Åの
疎水性カーボンブラックと平均粒径０．３μｍのポリテ
トラフルオロエチレンとが７：３の割合で構成されるも
のをそれぞれ用いた。なお、このような反応膜２及びガ
ス拡散膜３は、白金以外の各原料粉末にソルベントナフ
サ、アルコール、水、炭化水素などの溶媒を混合した
後、圧縮成形することにより得ることができる。The gas diffusion electrode is generally formed by joining a reaction film and a gas diffusion film, and may be a conventionally known one (see, for example, Japanese Patent Laid-Open No. 62-154571). Among them, the gas diffusion film is generally formed of hydrophobic resin such as hydrophobic carbon and fluororesin, and has the property of having air permeability and conductivity but not water permeability, while the reaction film is hydrophilic. For example, platinum-based catalyst fine particles or hydrophilic carbon fine particles supporting the catalyst fine particles are supported on a hydrophilic material such as carbon, which has a property of allowing electrolyte, water, and the like to permeate. In this embodiment, the reaction film 2 is composed of platinum having an average particle size of 50Å, hydrophilic carbon black having an average particle size of 450Å, hydrophobic carbon black, and polytetrafluoroethylene having an average particle size of 0.3 μm: 0.7: The gas diffusion film 3 is composed of 7: 4: 3, and the gas diffusion film 3 is composed of hydrophobic carbon black having an average particle size of 420Å and polytetrafluoroethylene having an average particle size of 0.3 μm at a ratio of 7: 3. Each one was used. The reaction film 2 and the gas diffusion film 3 can be obtained by mixing each raw material powder other than platinum with a solvent such as solvent naphtha, alcohol, water, and hydrocarbon, and then compression-molding the mixture.
【００１１】以上説明したオゾン発生装置においては、
空気導入口６ａからガスチャンバ６内へ空気を供給する
と共に水供給口７ａから陽極チャンバ内へ水を供給し、
陽極８及びガス拡散電極４に電圧を印加すると、陽極及
び陰極で次の反応が生じ、水排出口７ｂから水と共にオ
ゾンが得られる。 陽極：５Ｈ2 Ｏ→１０Ｈ+ ＋Ｏ3 ＋Ｏ2＋１０ｅ 陰極：１０Ｈ+ ＋５／２Ｏ2 ＋１０ｅ→５Ｈ2 Ｏ 陽極８として直径４cmのものを使用し、０．２Ａ／cm2
で電解したところ、収率３０％でＯ3 が得られた。な
お、オゾンと共に発生する酸素は回収してガスチャンバ
６の空気導入口６へ戻すようにしてもよい。また、空気
導入口６からは空気の代りに酸素を供給してもよいこと
は言うまでもない。In the ozone generator described above,
Air is supplied into the gas chamber 6 from the air introduction port 6a and water is supplied into the anode chamber from the water supply port 7a,
When a voltage is applied to the anode 8 and the gas diffusion electrode 4, the following reactions occur at the anode and the cathode, and ozone is obtained together with water from the water outlet 7b. Anode: 5H 2 O → 10H + + O 3 + O 2 + 10e Cathode: 10H + + 5 / 2O 2 + 10e → 5H 2 O Anode 8 having a diameter of 4 cm is used, and 0.2 A / cm 2
When electrolyzed, O 3 was obtained with a yield of 30%. The oxygen generated together with ozone may be recovered and returned to the air inlet 6 of the gas chamber 6. Needless to say, oxygen may be supplied from the air inlet 6 instead of air.
【００１２】図２には他の実施例に係るオゾン発生装置
を示す。同図に示す装置は、図１の陽極８の代りにＰｂ
Ｏ2 コーティングチタン網からなる陽極８Ａを固体高分
子電解質膜１に接触して設けた以外は図１の装置と同一
の構成を有するので、図１と同一符号を付して重複する
説明は省略する。図２に示す装置においても、図１のも
のと同様にオゾンを発生することができる。FIG. 2 shows an ozone generator according to another embodiment. The device shown in FIG.
The device has the same configuration as the device of FIG. 1 except that the anode 8A made of an O 2 coated titanium mesh is provided in contact with the solid polymer electrolyte membrane 1, and therefore the same reference numerals as those in FIG. To do. Also in the apparatus shown in FIG. 2, ozone can be generated similarly to that in FIG.
【００１３】このように、陽極としては、ＰｂＯ2 を表
面に付着した構成のものであれば特に限定されない。ま
た、陽極の材質もＴｉには限定されず、ＰｂＯ2 を安定
に保持するものであれば、例えば銅などを用いることも
可能である。但し、腐食の問題等を考慮すると、Ｔｉが
好ましい。As described above, the anode is not particularly limited as long as it has a structure in which PbO 2 is attached to the surface. The material of the anode is not limited to Ti, and copper or the like may be used as long as it can stably hold PbO 2 . However, considering the problem of corrosion and the like, Ti is preferable.
【００１４】[0014]
【発明の効果】以上説明したように、本発明に係るオゾ
ン発生装置は、固体高分子電解質膜セルを応用したもの
であり、簡易な構造でオゾンを効率よく発生することが
できるものである。As described above, the ozone generator according to the present invention is an application of the solid polymer electrolyte membrane cell and is capable of efficiently generating ozone with a simple structure.
【図１】一実施例に係るオゾン発生装置の概略構成図で
ある。FIG. 1 is a schematic configuration diagram of an ozone generator according to an embodiment.
【図２】他の実施例に係るオゾン発生装置の概略構成図
である。FIG. 2 is a schematic configuration diagram of an ozone generator according to another embodiment.
１ 固体高分子電解質膜 ２ 反応膜 ３ ガス拡散膜 ４ ガス拡散電極 ５ ハーフセル ６ ガスチャンバ ７ 陽極チャンバ ８，８Ａ 陽極 1 Solid Polymer Electrolyte Membrane 2 Reaction Film 3 Gas Diffusion Film 4 Gas Diffusion Electrode 5 Half Cell 6 Gas Chamber 7 Anode Chamber 8, 8A Anode
Claims (1)
ガス拡散膜からなるガス拡散電極を接合してなる接合体
と、この接合体の固体高分子電解質膜に対向して若しく
は接触して設けられた酸化鉛付き電極と、上記ガス拡散
電極を陰極、上記酸化鉛付き電極を陽極として電圧を印
加する電源と、上記ガス拡散電極を介して固体高分子電
解質膜に空気若しくは酸素を供給する酸素供給手段と、
上記接合体の固体高分子電解質膜側及び酸化鉛付き電極
に接触するよう水を供給する水供給手段とを有すること
を特徴とするオゾン発生装置。1. A joined body comprising a solid polymer electrolyte membrane and a gas diffusion electrode consisting of a reaction membrane and a gas diffusion membrane joined to one surface of the solid polymer electrolyte membrane, and the solid polymer electrolyte membrane of the joined body facing or in contact with the joined body. An electrode with lead oxide provided, a power source for applying a voltage using the gas diffusion electrode as a cathode and the electrode with lead oxide as an anode, and supplying air or oxygen to the solid polymer electrolyte membrane through the gas diffusion electrode. Oxygen supply means,
An ozone generator comprising: a water supply means for supplying water so as to come into contact with the solid polymer electrolyte membrane side of the joined body and the electrode with lead oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3266382A JP2989339B2 (en) | 1991-10-15 | 1991-10-15 | Ozone generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3266382A JP2989339B2 (en) | 1991-10-15 | 1991-10-15 | Ozone generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05106073A true JPH05106073A (en) | 1993-04-27 |
| JP2989339B2 JP2989339B2 (en) | 1999-12-13 |
Family
ID=17430162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3266382A Expired - Fee Related JP2989339B2 (en) | 1991-10-15 | 1991-10-15 | Ozone generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2989339B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994017223A1 (en) * | 1993-01-23 | 1994-08-04 | Johnson Matthey Public Limited Company | Air- or oxygen diffusion electrode |
| CN109321937A (en) * | 2018-11-29 | 2019-02-12 | 深圳康诚博信科技有限公司 | A kind of ozone generating-device |
-
1991
- 1991-10-15 JP JP3266382A patent/JP2989339B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994017223A1 (en) * | 1993-01-23 | 1994-08-04 | Johnson Matthey Public Limited Company | Air- or oxygen diffusion electrode |
| CN109321937A (en) * | 2018-11-29 | 2019-02-12 | 深圳康诚博信科技有限公司 | A kind of ozone generating-device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2989339B2 (en) | 1999-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990914 |
|
| LAPS | Cancellation because of no payment of annual fees |