title: Physico-chemical changes in Ca, Sr and Al-doped La-Mn-O perovskites upon thermochemical splitting of CO2 via redox cycling.
abstract: Thermochemical CO2-splitting via redox cycling of Ca, Sr and Al-doped La-Mn perovskites induces irreversible changes in the texture and chemical composition of these oxides. Though the crystal structure is mostly preserved after high-temperature redox cycling, the chemical stability is detrimentally affected by sintering and by the formation and eventual segregation of a carbonate phase during oxidation by CO2. Carbonation of the Ca and Sr phase was diminished by Al-substitution of the Mn-cation in the B-position.
authors: Department of Mechanical and Process Engineering, Sonneggstrasse 3, 8092 Zurich, Switzerland.
authors: M E
authors: ME
authors: Gálvez
authors: R
authors: R
authors: Jacot
authors: J
authors: J
authors: Scheffe
authors: T
authors: T
authors: Cooper
authors: G
authors: G
authors: Patzke
authors: A
authors: A
authors: Steinfeld