Thermodynamic properties of Sr-doped LaMnO3 perovskite in the La-Sr-Mn-O system

Feng Zheng, Larry R. Pederson

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Thermodynamic properties of Sr-doped perovskite-type lanthanum manganites (LSM) were generated by measuring the electromotive force (EMF) of test materials, using the solid galvanic cell technique. The cell consisted of an anode (SrO/SrF2), an electrolyte (CaF2 or SrF2) and a cathode (LSM/SrF2). Two types of cells were tested in which type I used a CaF2 electrolyte and type II used a SrF2 electrolyte. The activity of SrO substituting into various LSM compositions was calculated using the measured EMF. The Sr content was varied from 0.16 to 0.6 mol, and the temperature of interest varied from 700 to 1000°C. It was found that the SrO activity decreased with increasing temperature (at fixed composition) and increased Sr content (at fixed temperature).

Original languageEnglish
Pages (from-to)2817-2820
Number of pages4
JournalJournal of the Electrochemical Society
Volume146
Issue number8
DOIs
Publication statusPublished - Aug 1999
Externally publishedYes

Fingerprint

Perovskite
Electrolytes
Electromotive force
Thermodynamic properties
electromotive forces
thermodynamic properties
electrolytes
materials tests
Manganites
Lanthanum
electrolytic cells
cells
Chemical analysis
lanthanum
Temperature
temperature
Anodes
Cathodes
anodes
cathodes

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Thermodynamic properties of Sr-doped LaMnO3 perovskite in the La-Sr-Mn-O system. / Zheng, Feng; Pederson, Larry R.

In: Journal of the Electrochemical Society, Vol. 146, No. 8, 08.1999, p. 2817-2820.

Research output: Contribution to journalArticle

Zheng, Feng ; Pederson, Larry R. / Thermodynamic properties of Sr-doped LaMnO3 perovskite in the La-Sr-Mn-O system. In: Journal of the Electrochemical Society. 1999 ; Vol. 146, No. 8. pp. 2817-2820.
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