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Noteworthy performance of La<sub>1−x</sub>Ca<sub>x</sub>MnO<sub>3</sub> perovskites in generating H<sub>2</sub> and CO by the thermochemical splitting of H<sub>2</sub>O and CO<sub>2</sub>
109
Citations
26
References
2014
Year
EngineeringHalide PerovskitesChemistryPerovskite OxidesComposition La1-xcaxmno3Thermal CatalysisThermodynamicsThermochemical SplittingMaterials ScienceInorganic ChemistryCatalytic MaterialOxide ElectronicsPhysical ChemistryCatalysisHydrogenLcm SystemOxygen Reduction ReactionNoteworthy PerformancePerovskite Solar CellEnergy CeramicApplied PhysicsCondensed Matter PhysicsChemical Thermodynamics
Perovskite oxides of the composition La1-xCaxMnO3 (LCM) have been investigated for the thermochemical splitting of H2O and CO2 to produce H2 and CO, respectively. The study was carried out in comparison with La1-xSrxMnO3, CeO2 and other oxides. The LCM system exhibits superior characteristics in high-temperature evolution of oxygen, and in reducing CO2 to CO and H2O to H2. The best results were obtained with La0.5Ca0.5MnO3 whose performance is noteworthy compared to that of other oxides including ceria. The orthorhombic structure of LCM seems to be a crucial factor.
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