JP2007016303A5 - - Google Patents
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- JP2007016303A5 JP2007016303A5 JP2006045693A JP2006045693A JP2007016303A5 JP 2007016303 A5 JP2007016303 A5 JP 2007016303A5 JP 2006045693 A JP2006045693 A JP 2006045693A JP 2006045693 A JP2006045693 A JP 2006045693A JP 2007016303 A5 JP2007016303 A5 JP 2007016303A5
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- JP
- Japan
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- electrode
- electrolysis
- oxidized
- tantalum
- tap water
- Prior art date
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Description
本発明において基体2は、導電性材料として、例えば、白金(Pt)若しくは、タンタル(Ta)、ジルコニウム(Zr)、ニオブ(Nb)などの金属やこれらの金属2種以上の合金、或いはシリコン(Si)などにより構成される。特に、本実施例において用いられる基体2は、表面が格別に平坦であることが好ましいことから、表面が平坦に処理されたシリコンを用いる。 Base 2 in the present invention, as a conductive material, e.g., platinum (Pt) or tantalum (Ta), zirconium (Zr), niobium (Nb) metal such or these metals two or more alloys, or silicon ( Si) or the like. In particular, since the substrate 2 used in this embodiment preferably has a particularly flat surface, silicon whose surface is processed to be flat is used.
その後、当該中間層3及び表面層4が形成された基体2は、ステップS5においてマッフル炉において600℃、大気雰囲気中にて30分、熱焼成(アニール)が実行され、電解用電極1が得られる。これにより、中間層3の表面に形成された表面層4を構成する金属タンタルは、均一に酸化される。尚、当該熱焼成により金属タンタルが酸化され酸化タンタルとなるため、表面層4の厚さは、14nm〜2000nm程度となる。また、本実施例では、スパッタ法による中間層3及び表面層4の形成後、当該熱焼成が行われ、電極1表面の酸化処理がなされるが、当該電極1を電解に使用した際に、電極表面の酸化が行われるため、当該熱焼成を実行しなくてもよいものとする。
Thereafter, the substrate 2 on which the intermediate layer 3 and the surface layer 4 are formed is thermally baked (annealed) in a muffle furnace at 600 ° C. in an air atmosphere for 30 minutes in step S5, so that the electrode 1 for electrolysis is obtained. It is done. Thereby, the metal tantalum constituting the surface layer 4 formed on the surface of the intermediate layer 3 is uniformly oxidized. In addition, since a metal tantalum is oxidized and becomes a tantalum oxide by the said heat baking, the thickness of the surface layer 4 will be about 14 nm-2000 nm. Further, in this example, after the intermediate layer 3 and the surface layer 4 are formed by the sputtering method, the thermal baking is performed, and the surface of the electrode 1 is oxidized. When the electrode 1 is used for electrolysis, Since the electrode surface is oxidized, it is not necessary to perform the thermal baking.
以上の構成により、処理槽21内に水温:15℃の模擬水道水23を陽イオン交換膜24にて仕切られたアノード側及びカソード側にそれぞれ150mlずつ、合計300ml貯溜する。電解用電極1及び電極22をそれぞれアノード側の模擬水道水及びカソード側
の模擬水道水中に、陽イオン交換膜24を挟んで浸漬させる。尚、本実施例における電解用電極1及び電極22の面積は40mm×20mm(浸漬部35mm×15mm)、電極間距離は10mmとする。そして、電源25により100mA、電流密度20mA/cm2程度の定電流が電解用電極1及び電極22に印加される。
With the above configuration, the simulated tap water 23 having a water temperature of 15 ° C. is stored in the treatment tank 21 in an amount of 150 ml on each of the anode side and the cathode side partitioned by the cation exchange membrane 24, for a total of 300 ml. Electrolysis electrode 1 and electrode 22 are immersed in simulated tap water on the anode side and simulated tap water on the cathode side, with cation exchange membrane 24 interposed therebetween. In addition, the area of the electrode 1 for electrolysis and the electrode 22 in a present Example shall be 40 mm x 20 mm (immersion part 35 mm x 15 mm), and the distance between electrodes shall be 10 mm. Then, a constant current of about 100 mA and a current density of about 20 mA / cm 2 is applied to the electrolysis electrode 1 and the electrode 22 by the power source 25.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006045693A JP4290169B2 (en) | 2005-06-07 | 2006-02-22 | Electrode for electrolysis and method for producing persulfate-dissolved water using the electrode |
US11/447,203 US20060272939A1 (en) | 2005-06-07 | 2006-06-06 | Electrolyzing electrode and production method of persulfuric acid-dissolving liquid by use of the electrode |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005166786 | 2005-06-07 | ||
JP2006045693A JP4290169B2 (en) | 2005-06-07 | 2006-02-22 | Electrode for electrolysis and method for producing persulfate-dissolved water using the electrode |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2007016303A JP2007016303A (en) | 2007-01-25 |
JP2007016303A5 true JP2007016303A5 (en) | 2007-11-29 |
JP4290169B2 JP4290169B2 (en) | 2009-07-01 |
Family
ID=37493061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006045693A Expired - Fee Related JP4290169B2 (en) | 2005-06-07 | 2006-02-22 | Electrode for electrolysis and method for producing persulfate-dissolved water using the electrode |
Country Status (2)
Country | Link |
---|---|
US (1) | US20060272939A1 (en) |
JP (1) | JP4290169B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008029258A2 (en) * | 2006-09-05 | 2008-03-13 | Element Six Limited | Solid electrode |
EP1970471A3 (en) | 2007-03-07 | 2009-05-13 | Sanyo Electric Co., Ltd. | Electrode for electrolysis and electrolysis unit |
JP2010001552A (en) * | 2008-06-23 | 2010-01-07 | Sanyo Electric Co Ltd | Electrode for electrolysis and electrolysis unit |
JP4734664B1 (en) | 2010-09-17 | 2011-07-27 | 田中貴金属工業株式会社 | Electrode for electrolysis, anode for electrolysis of ozone, anode for electrolysis of persulfate, and anode for chromium electrooxidation |
JP6554642B2 (en) * | 2015-08-20 | 2019-08-07 | 国立研究開発法人産業技術総合研究所 | Method and apparatus for producing hydrogen peroxide |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6200440B1 (en) * | 1995-11-03 | 2001-03-13 | Huron Tech Corp | Electrolysis cell and electrodes |
JP3810043B2 (en) * | 1998-09-30 | 2006-08-16 | ペルメレック電極株式会社 | Chrome plating electrode |
JP3619828B2 (en) * | 2001-06-21 | 2005-02-16 | 三洋電機株式会社 | Electrolysis electrode, production method thereof, electrolysis method using electrolysis electrode, and electrolyzed water generator |
EP1597415A4 (en) * | 2003-02-14 | 2006-04-05 | Versitech Ltd | Device for and method of generating ozone |
JP2006097122A (en) * | 2004-08-31 | 2006-04-13 | Sanyo Electric Co Ltd | Electrode for electrolysis and method of manufacturing electrode for electrolysis |
JP2007046129A (en) * | 2005-08-11 | 2007-02-22 | Sanyo Electric Co Ltd | Electrode for electrolysis, and method for producing electrode for electrolysis |
-
2006
- 2006-02-22 JP JP2006045693A patent/JP4290169B2/en not_active Expired - Fee Related
- 2006-06-06 US US11/447,203 patent/US20060272939A1/en not_active Abandoned
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