La0.9Sr0.1Ga0.8Mn0.2O2.85: a new oxide ion conductor

Thangadurai, V. ; Shukla, A. K. ; Gopalakrishnan, J. (1998) La0.9Sr0.1Ga0.8Mn0.2O2.85: a new oxide ion conductor Chemical Communications (23). pp. 2647-2648. ISSN 1359-7345

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Official URL: http://pubs.rsc.org/en/content/articlelanding/1998...

Related URL: http://dx.doi.org/10.1039/A807529H

Abstract

Isovalent substitution of Mn(II) for Mg(II) in the oxide ion conductor, La0.9Sr0.1Ga0.8Mg0.2O2.85, yields a new oxide ion conductor which exhibits an ionic conductivity (σ = 4.6 × 10-2 S cm-1 at 800 ° C) that is comparable to the conductivity of the Mg(II) analogue; interestingly, the Mn(II) oxide has a lower activation energy for conduction (Ea = 0.47 eV) than the Mg(II) oxide.

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