In Situ Study of BaTi(O/H)3 nitridation and 1H/2D isotope exchange
In the proposed experiment, we are interested in investigating the formation mechanism of BaTiO2.4N0.4 structure from the BaTi(O/H)3 precursor at moderate temperatures (ca. 500°C), in situ during ammonolysis. The reaction will be carried out in a specially designed reaction chamber which will be operated at different temperatures and under different NH3 flow rates. The aim of the study is not only to follow the formation of BaTiO2.4N0.4 but also to determine the oxygen-nitrogen exchange kinetics as a function of T and NH3 gas flow rate. We are further interested if any ordered distribution of the oxygen/nitrogen atoms during the substitution reaction can be evidenced. Furthermore, we will study the 1H/2D isotope exchange on a deuterated sample BaTiO2.5D0.5 as a function of the temperature and time, in a solid-gas reaction, using NH3 gas flow.
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CERETTI Monica; CHAVANA Hareesh; MARSICANO Anna; PAULUS Werner and RITTER Clemens. (2021). In Situ Study of BaTi(O/H)3 nitridation and 1H/2D isotope exchange. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-25-273
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