Presentation 2022-12-27
Investigation of deterioration mechanism of platinum-plated electrodes
Yuta Yagi, Keigo Hatta, Kazuhiko Noda,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Platinum-plated materials, which are titanium plated with platinum, are widely used as industrial electrodes, but there are many unclear points about their deterioration. In particular, it has been confirmed that the platinum plating disappears earlier than the general consumption rate under fresh water, which is a high-resistance environment. In this study, in order to investigate the degradation mechanism of platinum plating in a freshwater environment, platinum-plated materials or platinum-titanium couple electrodes were subjected to constant-current electrolysis in tap water, and changes in the potential of each specimen were measured over time. The potential was measured by the current interactive method to obtain an accurate potential that does not include the potential error due to solution resistance. As a result, it was found that when electrolysis is performed in fresh water where platinum and titanium coexist, there is a possibility that the potential of titanium becomes noble enough to exceed the breakdown potential of the titanium oxide film.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Platinum plating / titanium / fresh water / IR drop
Paper # OME2022-60
Date of Issue 2022-12-19 (OME)

Conference Information
Committee OME
Conference Date 2022/12/26(2days)
Place (in Japanese) (See Japanese page)
Place (in English) OKINAWAKEN SEINENKAIKAN
Topics (in Japanese) (See Japanese page)
Topics (in English) biotechnology, surface and interfacial phenomena, measurement technology, electronics, etc.
Chair Toshiki Yamada(NICT)
Vice Chair Eiji Itoh(Shinshu Univ.)
Secretary Eiji Itoh(Osaka Univ.)
Assistant Yoshiyuki Seike(Aichi Inst. of Tech.) / Akira Baba(Niigata Univ.)

Paper Information
Registration To Technical Committee on Organic Molecular Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Investigation of deterioration mechanism of platinum-plated electrodes
Sub Title (in English)
Keyword(1) Platinum plating
Keyword(2) titanium
Keyword(3) fresh water
Keyword(4) IR drop
1st Author's Name Yuta Yagi
1st Author's Affiliation NAKABOHTEC CORROSION PROTECTING CO.,LTD.(NAKABOHTEC)
2nd Author's Name Keigo Hatta
2nd Author's Affiliation Shibaura Institute of Technology(SIT)
3rd Author's Name Kazuhiko Noda
3rd Author's Affiliation Shibaura Institute of Technology(SIT)
Date 2022-12-27
Paper # OME2022-60
Volume (vol) vol.122
Number (no) OME-327
Page pp.pp.44-47(OME),
#Pages 4
Date of Issue 2022-12-19 (OME)