Issue 3, 2011

An EMF cell with a nitrogen solid electrolyte—on the transference of nitrogen ions in yttria-stabilized zirconia

Abstract

The mobility and electrochemical activity of nitrogen inside and/or at the surface of ionic compounds is of fundamental, as well as of possibly practical, relevance. In order to better understand the role of nitrogen anions in solid electrolytes, we measured the transference number of nitrogen in yttria-stabilized zirconia (YSZ) by a concentration cell technique as a function of oxygen activity at different temperatures in the range of 1023 ≤ T/K ≤ 1123. YSZ doped with 1.9 wt% of N (YSZ:N) turned out to have an appreciable nitrogen transference number, which increased from 0 to 0.1 with decreasing oxygen activity in the range of −20 < logaO2 < −14. The stability of N in YSZ:N, however, has yet to be elucidated under oxidizing conditions.

Graphical abstract: An EMF cell with a nitrogen solid electrolyte—on the transference of nitrogen ions in yttria-stabilized zirconia

Article information

Article type
Paper
Submitted
09 Mar 2010
Accepted
14 Oct 2010
First published
16 Nov 2010

Phys. Chem. Chem. Phys., 2011,13, 1239-1242

An EMF cell with a nitrogen solid electrolyte—on the transference of nitrogen ions in yttria-stabilized zirconia

D. Lee, C. C. Fischer, I. Valov, J. Reinacher, A. Stork, M. Lerch and J. Janek, Phys. Chem. Chem. Phys., 2011, 13, 1239 DOI: 10.1039/C003991H

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