Electronic origin of conductivity changes and isothermal expansion of Ta- and Ti-substituted La 1/2Sr 1/2fe-oxide in oxidative and reducing atmosphere

Chemistry of Materials

Volumn 24, Issue 8, 2012, Pages 1529-1535

  Braun, Artur ^a   Erat, Selma ^a,b,c,d   Bayraktar, Defne ^a   Harvey, Ashley ^b   Graule, Thomas ^a,e  

^a SWISS FEDERAL LABORATORIES FOR MATERIALS SCIENCE AND TECHNOLOGY   (Switzerland)

^b ETH ZURICH   (Switzerland)

^c MERSIN UNIVERSITY   (Turkey)

^d TOROS UNIVERSITY   (Turkey)

^e TU BERGAKADEMIE FREIBERG   (Germany)

Author keywords

chemical expansion; conductivity; hole doping; NEXAFS; oxygen separation membrane; perovskites; SOFC; thermal expansion; valence band

Indexed keywords

ABSORPTION FINE STRUCTURE; BRANCHING RATIO; CHEMICAL EXPANSION; CONDUCTIVITY CHANGES; CORE-LEVEL SPECTRA; ELECTRIC TRANSPORT; ELECTRON HOLE; ELECTRONIC ORIGIN; HOLE STATE; HOLE-DOPING; INITIAL STATE; IRON PEROVSKITES; ISOTHERMAL EXPANSION; LATTICE EXPANSION; MIXED STATE; NEXAFS; ORDERS OF MAGNITUDE; OXYGEN SEPARATION MEMBRANES; OXYGEN-RICH ATMOSPHERES; REDUCING ATMOSPHERE; SPECTRAL WEIGHT; X-RAY ABSORPTION SPECTRUM;

ELECTRIC CONDUCTIVITY; ELECTROMAGNETIC WAVE ABSORPTION; IRON OXIDES; ISOTHERMS; PEROVSKITE; SOLID OXIDE FUEL CELLS (SOFC); STOICHIOMETRY; TANTALUM; THERMAL EXPANSION; VALENCE BANDS;

OXYGEN;

EID: 84860152172     PISSN: 08974756     EISSN: 15205002     Source Type: Journal    
DOI: 10.1021/cm300423m     Document Type: Article

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