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- W2331193889 abstract "First-principles calculations were performed to study structural, electronic and hydride diffusion properties of BaTiO3 oxyhydride. In agreement with experiment (Nat. Mater. 2012, 11, 507 and J. Am. Chem. Soc. 2012, 134, 8782), we find that the incoming H species occupy the anion vacancy sites left by oxygen, forming the stable hydride anions H–1. As a result of the electron doping introduced by H species, both interstitial H and hydride anion H–1 can induce metallicity and eliminate ferroelectricity in BaTiO3. We further clarify the role of the migration of the interstitial H in determining the hydrogen diffusion properties of the oxyhydrides. A low diffusion barrier was predicted, responsible for high hydrogen diffusion mobility observed in experiment. Based on our results, we demonstrate that BaTiO3 oxyhydride can be used as a mixed electron/hydride conductor, displaying the promising applications as the electrolytes for solid-oxide fuel cells." @default.
- W2331193889 created "2016-06-24" @default.
- W2331193889 creator A5039574135 @default.
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- W2331193889 date "2014-07-23" @default.
- W2331193889 modified "2023-10-16" @default.
- W2331193889 title "Study of Phase Stability and Hydride Diffusion Mechanism of BaTiO<sub>3</sub> Oxyhydride from First-Principles" @default.
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- W2331193889 doi "https://doi.org/10.1021/jp5030334" @default.
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