JP6143040B1 - 高精度局部電気化学計測用微小作用電極、高精度局部電気化学計測用微小作用電極の作製方法および高精度局部電気化学計測用微小作用電極の絶縁被覆層の剥離方法 - Google Patents
高精度局部電気化学計測用微小作用電極、高精度局部電気化学計測用微小作用電極の作製方法および高精度局部電気化学計測用微小作用電極の絶縁被覆層の剥離方法 Download PDFInfo
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Abstract
Description
図1に、本発明の実施の形態にかかる電気化学計測用微小電極システムの概略図を示す。ただし、図1は、微小領域の電気化学計測と電極面の光学顕微鏡観察とを同時に行う場合の例である。本発明の骨子は、材料表面の微小領域の電気化学計測を行う高精度局部電気化学計測用微小作用電極において、面積が0.01 mm2以下の作用電極面2と、作用電極面2の外周部に、水滴との接触角が70度を超える疎水性の有機化合物を、電位窓が水より広い有機溶媒で溶かすことで粘度を調整したものを表面に塗布した絶縁被覆層1とを備える高精度局部電気化学計測用微小作用電極とその作製方法である。図1(a)は、絶縁被覆層1の表面に、親水性の有機化合物層3が存在しない場合、および図1(b)は、絶縁被覆層1の表面に、親水性の有機化合物層3が、作用電極面2の外周部を取り囲む形態で存在する場合の模式図である。図1に示す対物レンズ、アクリル容器、ポテンショスタットなどは本発明の構成要件ではない。
2 作用電極面
3 親水性の有機化合物層
Claims (6)
- 計測対象である材料表面の任意の位置に作製された、面積が 0.01 mm2以下の作用電極面と、
水滴との接触角が 70度を超える疎水性の有機化合物から構成され、前記作用電極面の外周部に形成された絶縁被覆層とを、
有することを特徴とする高精度局部電気化学計測用微小作用電極。 - 前記作用電極面外周部の絶縁被覆層が、エチルメチルケトオキシム、スチレンブタジエン、ニトリル、クロロプレン、メチルビニル、メチルフェニル、フロロシリコーン、エチレンプロピレン、フッ素樹脂、ジメチルポリシロキサンのいずれか1種類、あるいは、それらの内の2種類以上の混合物であることを特徴とする請求項1記載の高精度局部電気化学計測用微小作用電極。
- 前記絶縁被覆層の表面に、水滴との接触角が 70度以下である親水性の有機化合物層が、前記作用電極面外周部を取り囲む形態で存在し、親水性の前記有機化合物層と前記作用電極面外周部との距離が全周にわたり 0.5 mm以上 3 mm以下であり、親水性の前記有機化合物層の幅が 1 mm以上であることを特徴とする請求項1もしくは2記載の高精度局部電気化学計測用微小作用電極。
- 請求項1から請求項3のいずれか1項に記載の高精度局部電気化学計測用微小作用電極の作製方法であって、前記作用電極面外周部の絶縁被覆層の作製に際して、水よりも電位窓が広い有機溶媒で有機化合物を希釈し、粘度を調整したうえで前記作用電極を構成する固体材料に塗布し、その後、乾燥させることを特徴とする高精度局部電気化学計測用微小作用電極の作製方法。
- 水よりも電位窓が広い前記有機溶媒として、トルエン、キシレン、ケロシン、シクロヘキサン、アセトニトリル、ジクロロエタン、ジクロロメタン、ジエチルエーテル、N,N-ジメチルホルムアミド、ジメチルスルホキシド、N-メチル-2-ピロリドン、炭酸プロピレン、テトラヒドロフラン、テトラメチルシランのいずれか1種類、あるいは、それらの内の2種類以上の混合物を使用することを特徴とする請求項4記載の高精度局部電気化学計測用微小作用電極の作製方法。
- 請求項1から請求項3のいずれか一項に記載の高精度局部電気化学計測用微小作用電極の絶縁被覆層の剥離方法であって、前記作用電極面をトルエン、キシレン、ジエチルエーテル、1,2-ブチレンオキシド、メタンスルホン酸、1-ブロモプロパンのいずれか1種類、あるいは、それらの内の2種類以上の混合物に浸漬することを特徴とする高精度局部電気化学計測用微小作用電極の絶縁被覆層の剥離方法。
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CN113049485A (zh) * | 2021-02-08 | 2021-06-29 | 中国船舶重工集团公司第七二五研究所 | 一种金属材料海洋大气腐蚀原位监测装置 |
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JP2006112789A (ja) * | 2004-10-12 | 2006-04-27 | Sekisui Chem Co Ltd | 微量分析方法 |
JP2012154783A (ja) * | 2011-01-26 | 2012-08-16 | Tohoku Univ | 光学顕微鏡観察機能を備えた電気化学計測用微小電極システム |
JP2014002015A (ja) * | 2012-06-18 | 2014-01-09 | Asahi Glass Co Ltd | 微小金属電極およびその製造方法 |
JP5987230B1 (ja) * | 2015-03-18 | 2016-09-07 | 国立大学法人東北大学 | 局部電気化学現象解析のための微小作用電極 |
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JP2006112789A (ja) * | 2004-10-12 | 2006-04-27 | Sekisui Chem Co Ltd | 微量分析方法 |
JP2012154783A (ja) * | 2011-01-26 | 2012-08-16 | Tohoku Univ | 光学顕微鏡観察機能を備えた電気化学計測用微小電極システム |
JP2014002015A (ja) * | 2012-06-18 | 2014-01-09 | Asahi Glass Co Ltd | 微小金属電極およびその製造方法 |
JP5987230B1 (ja) * | 2015-03-18 | 2016-09-07 | 国立大学法人東北大学 | 局部電気化学現象解析のための微小作用電極 |
JP2016176700A (ja) * | 2015-03-18 | 2016-10-06 | 国立大学法人東北大学 | 局部電気化学現象解析のための微小作用電極 |
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CN113049485A (zh) * | 2021-02-08 | 2021-06-29 | 中国船舶重工集团公司第七二五研究所 | 一种金属材料海洋大气腐蚀原位监测装置 |
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