Thermodynamic Properties and Stability of In‐Doped SrCeO 3  Proton‐Conducting Ceramics | Zendy

Matskevich Nata I. | Zendy; Wolf Thomas | Zendy; Chupakhina Tatiana I. | Zendy

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Thermodynamic Properties and Stability of In‐Doped SrCeO 3 Proton‐Conducting Ceramics

Author(s) -

Matskevich Nata I.,

Wolf Thomas,

Chupakhina Tatiana I.

Publication year - 2011

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.201000504

Subject(s) - chemistry , standard enthalpy of formation , calorimetry , enthalpy , zirconium dioxide , decomposition , standard enthalpy change of formation , inorganic chemistry , solvent , thermochemistry , enthalpy change of solution , gibbs free energy , zirconium , chemical stability , thermodynamics , organic chemistry , chemical engineering , physics , engineering

The standard enthalpy of formation of SrCe 0.5 In 0.5 O 2.75 has been determined by solution calorimetry by combiningthe solution enthalpies of SrCe 0.5 In 0.5 O 2.75 and a SrCl 2 + 0.5CeCl 3 + 0.5InCl 3 mixture in 1.0 M HCl with KI as a solvent at 298.15 K and literature data. The results show that SrCe 0.5 In 0.5 O 3– δ is thermodynamically stable with respect to decomposition to binary oxides. Calculation of the Gibbs energies for the interaction of SrCe 0.5 In 0.5 O 2.75 with aluminum oxide and zirconium dioxide allows one to predict that SrCe 0.5 In 0.5 O 2.75 does not react with Al 2 O 3 or ZrO 2 at ambient temperatures.

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