Energetics of La{sub 2-x}Sr{sub x}CoO{sub 4-y} (0.5 < x < 1.5)
Journal Article
·
· Journal of Solid State Chemistry
- Princeton Univ., NJ (United States)
Several compositions in the La{sub 2-x}Sr{sub x}CoO{sub 4-y} series were synthesized in air and in argon. The heats of formation of these compounds were calculated from the measured heats of solution using high-temperature drop solution calorimetry in lead borate solvent. The heats of formation become more exothermic with increasing strontium content, consistent with a high heat of oxidation of -400 kJ per mole of O{sub 2} determined from calorimetry of samples with the same strontium content and different oxygen nonstoichiometry. This enthalpy of oxidation is significantly more exothermic than values for the corresponding cuprates and nickelates.
- OSTI ID:
- 518210
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 1 Vol. 112; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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