An Improvement of the Pt/Ti Anode by the Use of TiO2 Binder

To improve the durability of the platinized titanium anode, TiO2 gel prepared by sol-gel method was used as the binder between Pt film and Ti substrate. The durability of Pt/TiO2/Ti and Pt/Ti electrodes after amealing at 200, 300, 400 and 550°C were examined in 1M H2SO4 solution at an anodic current...

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Bibliographic Details
Published in:Denki kagaku oyobi kōgyō butsuri kagaku 1999/03/05, Vol.67(3), pp.243-247
Main Authors: RENGAKUJI, Seichi, HARA, Yosuke, NAKAMURA, Yuuko, SHIMASAKI, Choichiro, IKENO, Susumu, KATO, Takuro, KUBOTA, Kazuhiro
Format: Article
Language:Japanese
Subjects:
Adhesive Strength
Anatase Structure
TiO2 Binder
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Summary:To improve the durability of the platinized titanium anode, TiO2 gel prepared by sol-gel method was used as the binder between Pt film and Ti substrate. The durability of Pt/TiO2/Ti and Pt/Ti electrodes after amealing at 200, 300, 400 and 550°C were examined in 1M H2SO4 solution at an anodic current density of 200A/dm2, temperature being at 60°C. When the anode with TiO2 binder was annealed at 550°C, the durability of Pt/Ti anodes was improved by a factor of about 3, compared with usual type anode annealed at 200°C. It was found that TiO2 binder began to crystallize from amorphous to anatase structure at around 300°C. We assumed that a mixed phase of Pt, TiO2 and Ti could be formed at temperatures over 300°C.
ISSN:1344-3542
2186-2451
DOI:10.5796/electrochemistry.67.243