Perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) oxides: Structural, reduction-tolerant, sintering, and electrical properties

Hui Lu, Linlin Zhu, Jong Pyo Kim, Sou Hwan Son, Jung Hoon Park

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) powders have been synthesized by the citrate gel method. Structural, reduction-tolerant, and sintering properties of the perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) oxides were studied by x-ray diffraction (XRD), thermogravimetry (TG), and scanning electron microscope (SEM). The enhanced structural stability of the Co-free La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Cr, Ti) oxides is ascribed to the higher metal-oxygen bonding energy of the Ti and Cr cations in the oxides. Electrical conductivities of the sintered La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) ceramics were measured, and increased as B = Co > Cr > Ti among the La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ oxides.

Original languageEnglish
Pages (from-to)24-29
Number of pages6
JournalSolid State Ionics
Volume209-210
DOIs
StatePublished - 23 Feb 2012

Keywords

  • Electrical conductivity
  • Perovskite oxides
  • Reduction-tolerance
  • Sintering
  • Structural stability

Fingerprint

Dive into the research topics of 'Perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) oxides: Structural, reduction-tolerant, sintering, and electrical properties'. Together they form a unique fingerprint.

Cite this