4.8 Article

Hydration Entropy and Enthalpy of a Perovskite Oxide from Oxygen Tracer Diffusion Experiments

Journal

JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 13, Issue 18, Pages 4133-4138

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.2c00970

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Funding

  1. German Research Foundation (DFG) [SFB 917]

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This study demonstrates an indirect method to probe the thermodynamics of water incorporation, using perovskite oxide samples subjected to H218O/H216O exchange annealing.
Water incorporation into perovskite oxides generates protonic defects in the formof hydroxide ions. In this study, an indirect method to probe the thermodynamics of waterincorporation is demonstrated. Acceptor-doped single-crystal samples of SrTiO3were subjectedto H218O/H216O exchange annealing at temperatures of 723

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