Oxygen nonstoichiometry and defect structure analysis of B-site mixed perovskite-type oxide (La, Sr)(Cr, M)O3−δ (M=Ti, Mn and Fe)

Electrical conduction behaviors of isovalent and acceptor dopants on B site of (La0.8Ca0.2)CrO3−δ perovskites

“…In previous works, there have been many investigations on the effects of crystal structure, microstructure, and electrical conductivity behaviors for ionic substitutions for the A sites and B sites behavior. Oishi et al [15,16] have examined the oxygen nonstoichiometry of Bsite doped LaCrO 3 as a function of oxygen partial pressure at 700-1100 8C and reported the related information as follows: (1) [17] have examined the characteristic properties of A-site and B-site doped LaCrO 3 as a function of oxygen partial pressure at 900-1100 8C and reported the effect of the macroscopic mechanical behaviors as the structure changes. These papers focused on the oxygen nonstoichiometry determined by means of high temperature gravimetry of A-site and B-sited doped LaCrO 3 .…”

Mixed Conductivity, Nonstoichiometric Oxygen, and Oxygen Permeation Properties in Co‐Doped Sr3Ti2O7−δ

“…On the other hand, with increasing Co content, Co tends to stay in a higher valence number than 3 + , because of an excess amount of oxygen vacancies. [21,22] …”

Fabrication of nanofibrous A- or B-sites substituted LaCoO3 perovskites with macroscopic structures and their catalytic applications

“…Its structure and property is strongly influenced by the chemical nature of the cations at A-or Bsites. By partial substitution of cations at A-or B-sites in ABO 3 perovskite-type oxides, it is possible to get some amounts of structure defects and valence distribution inside [5,6]. It is worth noting that the great diversity, high thermal and mechanical stability, and good oxidation ability of ABO 3 perovskite-type oxides make them good candidates for soot catalytic combustion [7][8][9].…”