Effect of counter cations on electrocatalytic activity of oxide pyrochlores towards oxygen reduction/evolution in alkaline medium: an electrochemical and spectroscopic study of metal/air secondary cells

Shukla, AK and Kannan, AM and Hegde, MS and Gopalakrishnan, J (1991) Effect of counter cations on electrocatalytic activity of oxide pyrochlores towards oxygen reduction/evolution in alkaline medium: an electrochemical and spectroscopic study of metal/air secondary cells. In: Journal of Power Sources, 35 (2). pp. 163-173.

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Abstract

A systematic electrochemical and spectroscopic study is conducted to examine the effect of counter cations on the electrocatalytic activities of oxide pyrochlores towards oxygen reduction and evolution reactions in alkaline medium. The study suggests that among the family of oxide pyrochlores, $Pb_2Ir_2O_7_-_y$ and $PbBiRu_2O_7_-_y$, are efficient and stable bifunctional oxygen catalysts. An analysis of the X-ray photoelectron spectra of the oxide pyrochlores supports the postulated pathways for the oxygen reactions.

Item Type:	Journal Article
Publication:	Journal of Power Sources
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	27 Jun 2007
Last Modified:	17 Jan 2012 06:41
URI:	http://eprints.iisc.ac.in/id/eprint/11286

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