A double-cell perovskite PrBaFe2O5+w is synthesized and its equilibrium nonstoichiometry investigated after quenching from flowing gas of varied oxygen partial pressures and temperatures. Whereas w = 0 is reached at 856 °C in wet H2 of pH2O = 0.02 bar yielding pO2 = 4×10−21 bar, w = 0.75 obtains at 400 °C in O2. Below ~1000 °C, compositions with w ≥ 0.5 order into a Cmmm superstructure that fully converts back upon heating to 1020 °C. PrBaFe2O5 of all equivalent Fe2.5+ sites orders into Fe2+ and Fe3+ upon cooling through a first-order transition at 204 K, with a 2 K hysteresis, as investigated by powder X-ray diffraction and differential scanning calorimetry. The valence-mixed and charge-ordered structures are refined from...
In this work, a mechanochemical route was proposed for the synthesis of the PrBaMn2O5+ (PMBO) doub...
The role of the perovskite lattice oxygen in the oxygen evolution reaction (OER) is systematically s...
Oxygen nonstoichiometry of three ternary oxides. YFeO3-delta, YFe2O4-alpha and Y3Fe5O12-theta. in th...
While lanthanoids Ln = Gd to Pr form Ba–Ln ordered double-cell iron perovskites with a wide equili...
In double-cell perovskites LnBaFe2O5+w, only lanthanoids Ln = Pr to Gd support wide equilibrium no...
The oxygen nonstoichiometry ofmixed-conducting perovskite-structured SrFe1−xMoxO3−δ (x=0, 0.07, 0.15...
Crystal structure of the double perovskite GdBaCo 1.8Fe 0.2O 6 - δ was investigated by means of in s...
Here we present a comprehensive study of oxygen-deficient double perovskites PrBa1−xCo2O5+δ (x = 0.0...
The effect of Fe substitution for Co on the thermodynamic and electrical properties of the double pe...
The phase stability, nonstoichiometry and point defect chemistry of polycrystalline Sr(2)FeMoO(6-del...
Here we present a comprehensive study of oxygen-deficient double perovskites PrBa1-xCo2O5+delta (x =...
A series of samples of overall composition Ba-Pr-Fe-Co-O3-δ were prepared by glycerin nitrate techni...
In this work, the defect structure analysis of La1-xSrxFeO3-δ (x=0.2, 0.5, 0.8) was presented. Therm...
The oxygen non-stoichiometry was determined by coulometric titration for the perovskite oxides La0.2...
Perovskite oxides are promising oxygen carrier materials to produce O2/CO2 gas for oxyfuel combustio...
In this work, a mechanochemical route was proposed for the synthesis of the PrBaMn2O5+ (PMBO) doub...
The role of the perovskite lattice oxygen in the oxygen evolution reaction (OER) is systematically s...
Oxygen nonstoichiometry of three ternary oxides. YFeO3-delta, YFe2O4-alpha and Y3Fe5O12-theta. in th...
While lanthanoids Ln = Gd to Pr form Ba–Ln ordered double-cell iron perovskites with a wide equili...
In double-cell perovskites LnBaFe2O5+w, only lanthanoids Ln = Pr to Gd support wide equilibrium no...
The oxygen nonstoichiometry ofmixed-conducting perovskite-structured SrFe1−xMoxO3−δ (x=0, 0.07, 0.15...
Crystal structure of the double perovskite GdBaCo 1.8Fe 0.2O 6 - δ was investigated by means of in s...
Here we present a comprehensive study of oxygen-deficient double perovskites PrBa1−xCo2O5+δ (x = 0.0...
The effect of Fe substitution for Co on the thermodynamic and electrical properties of the double pe...
The phase stability, nonstoichiometry and point defect chemistry of polycrystalline Sr(2)FeMoO(6-del...
Here we present a comprehensive study of oxygen-deficient double perovskites PrBa1-xCo2O5+delta (x =...
A series of samples of overall composition Ba-Pr-Fe-Co-O3-δ were prepared by glycerin nitrate techni...
In this work, the defect structure analysis of La1-xSrxFeO3-δ (x=0.2, 0.5, 0.8) was presented. Therm...
The oxygen non-stoichiometry was determined by coulometric titration for the perovskite oxides La0.2...
Perovskite oxides are promising oxygen carrier materials to produce O2/CO2 gas for oxyfuel combustio...
In this work, a mechanochemical route was proposed for the synthesis of the PrBaMn2O5+ (PMBO) doub...
The role of the perovskite lattice oxygen in the oxygen evolution reaction (OER) is systematically s...
Oxygen nonstoichiometry of three ternary oxides. YFeO3-delta, YFe2O4-alpha and Y3Fe5O12-theta. in th...