Improvement of oxygen storage properties of hexagonal YMnO3+δ by microstructural modifications

Temperature dependence of the oxygen content for YMnO3+δ sol-gel, calculated from data obtained during TG studies. Data was recorded during sequential heating and cooling in pure oxygen atmosphere with rates of 5, 1, and 0.1°min−1. Inset shows YMnO3+δ sol-gel microstructure.187