We present an aberration corrected scanning transmission electron microscopy (ac-STEM) analysis of perovskite (LaFeO3) and pyrochlore (Yb2Ti2O7 Pr2Zr2O7) oxides demonstrate that both the shape contrast visible atomic columns in annular dark-field (ADF) images are sensitive to presence nearby atoms low number (e.g. oxygen). show point defects oxygen vacancies), which invisible – or difficult obs...

Kinetic Monte Carlo simulation was applied to investigation of kinetics and mechanism of oxalic acid degradation by direct and heterogeneous catalytic ozonation. La-containing perovskites including LaFeO3, LaNiO3, LaCoO3 and LaMnO3 was studied as catalyst for oxalic acid ozonation. The reaction kinetic mechanisms of each abovementioned catalytic systems has been achieved. The rate constants val...