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How Is Oxygen Incorporated into Oxides? A Comprehensive Kinetic Study of a Simple Solid‐State Reaction with SrTiO 3 as a Model Material
Author(s) -
Merkle Rotraut,
Maier Joachim
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200700987
Subject(s) - strontium titanate , perovskite (structure) , stoichiometry , oxide , strontium , chemical reaction , chemical kinetics , solid state , oxygen , process (computing) , kinetics , reaction rate , chemistry , materials science , nanotechnology , chemical physics , computer science , catalysis , thin film , physics , organic chemistry , quantum mechanics , operating system
The kinetics of stoichiometry change of an oxide—a prototype of a simple solid‐state reaction and a process of substantial technological relevance—is studied and analyzed in great detail. Oxygen incorporation into strontium titanate was chosen as a model process. The complete reaction can be phenomenologically and mechanistically understood beginning with the surface reaction and ending with the transport in the perovskite. Key elements are a detailed knowledge of the defect chemistry of the perovskite as well as the application of a variety of experimental and theoretical tools, many of them evolving from this study. The importance of the reaction and transport steps for (electro)chemical applications is emphasized.