✦ LIBER ✦

Reduction of oxygen on LaNiO3 in alkaline solution

✍ Scribed by G. Karlsson

Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 826 KB
Volume: 10
Category: Article
ISSN: 0378-7753
DOI: 10.1016/0378-7753(83)80014-7

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✦ Synopsis

Three different preparations of LaNiOs were examined on a rotating disc electrode, and gave comparable activities for high oxygen reduction in an alkaline solution. The activation energy for oxygen reduction is estimated to be 5 kcal/g mole. Heterogeneous reduction of the oxide to free La(OH)s and NiO takes place during prolonged exposure at low potentials, and is enhanced by a low temperature synthesis of the oxide. Fluoropolymerbonded gas diffusion electrodes have a high activity but their lifetime is less than 24 h.

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