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Electrochemical properties of junction between protonic conductor and oxide ion conductor

โœ Scribed by T Shimura; G Egusa; H Iwahara; K Katahira; K Yamamoto

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
645 KB
Volume
97
Category
Article
ISSN
0167-2738

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โœฆ Synopsis

A dense and tightly contacted thin layer of SrZrO -based solid solution could be formed on yttrium stabilized zirconia, 3 YSZ, by high temperature chemical reaction. A water vapor concentration cell using this SrZrO -YSZ junction showed a 3 stable e.m.f. when the SrZrO side was exposed to wet air, whereas it exhibited no e.m.f. when the SrZrO was exposed to 3 3 dry air, suggesting protonic conduction in SrZrO . An oxygen concentration cell showed lower e.m.f. than that of the 3 theoretical at 6008C. A hydrogen-oxygen fuel cell showed asymmetric behavior regarding the used gases. Higher current could be drawn when the SrZrO film was exposed to hydrogen. Higher current passed through the junction when a positive 3 voltage was applied on the SrZrO side. This rectifying behavior did not appear in dry argon.

๐Ÿ“œ SIMILAR VOLUMES

Lithium ion conductors and proton conduc
Lithium ion conductors and proton conductors: Effects of plasticizers and hydration
โœ Caroline S. Harris; Thomas G. Rukavina ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 598 KB

Lithium ion conductors and proton conductors were developed in support of a large-area electrochromic transparency effort with the goal of identifying a polymer electrolyte that provides high ionic conductivity with good electrochemical and thermal stability. The best lithium ion conductor was found