JP4596957B2 - 銀基体生体用電極及びその製造方法 - Google Patents
銀基体生体用電極及びその製造方法 Download PDFInfo
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- JP4596957B2 JP4596957B2 JP2005106349A JP2005106349A JP4596957B2 JP 4596957 B2 JP4596957 B2 JP 4596957B2 JP 2005106349 A JP2005106349 A JP 2005106349A JP 2005106349 A JP2005106349 A JP 2005106349A JP 4596957 B2 JP4596957 B2 JP 4596957B2
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Description
エタノールで脱脂した銀板(t0.5mm×w10mm×L20mm)を大気中500℃で1時間熱処理をした後、過酸化水素1重量%及びアンモニア10重量%を含有する25℃の混合水溶液に30秒間浸漬することにより、銀基体表面の酸化膜などを除去するとともに銀結晶粒界単位の粗面化を行い、表面の粗さがRmax5μm、Ra3μm、Rz3μmの凹凸を有する銀基体Aを得た。
実施例1で作製した実施例電極1を、0.1%硫化ナトリウム水溶液に30秒間浸漬し、該電極表面の銀が露出している部分に硫化銀0.04mg/cm2を形成させて、銀基体Aの凹部の溝に酸化ホウ素が形成され、該銀層の凸部の頭部に塩化銀が形成され且つ部分的に露出していた銀基体表面に硫化銀が形成された実施例電極2を作製した。
銀板を実施例電極1と同様に、40℃飽和食塩水中、電流密度2.0mA/cm2の一定電流で10分間陽極酸化した後、大気中400℃で30分間熱処理を施し、銀基体表面に厚さが5μmの塩化銀層が形成された比較例電極1を作製した。なお、比較例1〜3における塩化銀層の厚さはEPMAでの断面分析による。
電流密度1.0mA/cm2の一定電流で5分間陽極酸化する以外は比較例1と同様にして、銀基体表面に厚さが1μmの塩化銀層が形成された比較例電極2を作製した。
電流密度4.0mA/cm2の一定電流で20分間陽極酸化する以外は比較例1と同様にして、銀基体表面に厚さが20μmの塩化銀層が形成された比較例電極3を作製した。
Claims (3)
- 少なくとも一面が粗面化されて表面に凹凸を有する銀基体と、該銀基体の該表面の凹底部に担持せしめられた酸化ホウ素と、該銀基体の該表面の凸頭部に担持せしめられた塩化銀を有することを特徴とする銀基体生体用電極。
- 酸化ホウ素又は塩化銀が担持されていない銀基体表面に担持せしめられた硫化銀をさらに有することを特徴とする請求項1記載の銀基体生体用電極。
- 少なくとも一面が粗面化されて表面に凹凸を有する銀基体表面に、ホウ素含有化合物の溶液を塗布し、乾燥させた後、酸素含有雰囲気中で加熱してホウ素含有化合物を分解することにより、該銀基体の該表面の凹底部に酸化ホウ素を担持させ、次いで、塩素イオンを含む水溶液中で該銀基体を陽極として電気分解を行うことにより、該銀基体の該表面の凸頭部に塩化銀を担持させることを特徴とする請求項1記載の銀基体生体用電極の製造方法。
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JP2005106349A JP4596957B2 (ja) | 2005-04-01 | 2005-04-01 | 銀基体生体用電極及びその製造方法 |
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JP2006280736A JP2006280736A (ja) | 2006-10-19 |
JP4596957B2 true JP4596957B2 (ja) | 2010-12-15 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4624160B2 (ja) * | 2005-04-01 | 2011-02-02 | 石福金属興業株式会社 | 生体用電極 |
JP5318598B2 (ja) * | 2009-01-29 | 2013-10-16 | 日科ミクロン株式会社 | オゾン水生成装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05176903A (ja) * | 1991-12-27 | 1993-07-20 | Tokuriki Honten Co Ltd | 銀−塩化銀電極およびその製造方法 |
JP2006280735A (ja) * | 2005-04-01 | 2006-10-19 | Ishifuku Metal Ind Co Ltd | 生体用電極 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05176903A (ja) * | 1991-12-27 | 1993-07-20 | Tokuriki Honten Co Ltd | 銀−塩化銀電極およびその製造方法 |
JP2006280735A (ja) * | 2005-04-01 | 2006-10-19 | Ishifuku Metal Ind Co Ltd | 生体用電極 |
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