Catalytic activities of rare-earth manganites for cathodic reduction of oxygen in alkaline solution
Journal Article
·
· Journal of the Electrochemical Society
- Kyushu Univ., Kasuga, Fukuoka (Japan)
A series of perovskite-type manganites, LnMnO{sub 3} (Ln = lanthanoids or Y), were examined for their electrode-catalytic activities to reduce oxygen in alkaline solution. Polarization experiments using gas diffusion-type electrodes revealed that the catalytic activity differed significantly with a change in Ln, being in the order of La > Pr > Nd > Sm > Gd > Y > Dy > Yb. This order coincides with the decreasing order of the ionic radius of La{sup 3+}. Application is to metal-air batteries for electric vehicles.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 428152
- Journal Information:
- Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 11 Vol. 143; ISSN 0013-4651; ISSN JESOAN
- Country of Publication:
- United States
- Language:
- English
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