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• W2048659055 abstract "Platinum plays an important role in catalysis and electrochemistry, and it is known that the direct interaction of oxygen with Pt surfaces can lead to the formation of platinum oxides (PtO${}_{x}$), which can affect the reactivity. To contribute to the atomistic understanding of the atomic structure of PtO${}_{x}$, we report a density functional theory study of the atomic structure of bulk PtO${}_{x}$ ($1ensuremath{le}xensuremath{le}2$). From our calculations, we identified a lowest-energy structure (GeS type, space group $Pnma$) for PtO, which is 0.181 eV lower in energy than the structure suggested by W. J. Moore and L. Pauling [J. Am. Chem. Soc. 63, 1392 (1941)] (PtS type). Furthermore, two atomic structures were identified for PtO${}_{2}$, which are almost degenerate in energy with the lowest-energy structure reported so far for PtO${}_{2}$ (CaCl${}_{2}$ type). Based on our results and analysis, we suggest that Pt and O atoms tend to form octahedron motifs in PtO${}_{x}$ even at lower O composition by the formation of Pt-Pt bonds." @default.
• W2048659055 created "2016-06-24" @default.
• W2048659055 creator A5003194446 @default.
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• W2048659055 date "2011-09-14" @default.
• W2048659055 modified "2023-09-27" @default.
• W2048659055 title "Bulk structures of PtO and PtO<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mrow /><mml:mn>2</mml:mn></mml:msub></mml:math>from density functional calculations" @default.
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• W2048659055 doi "https://doi.org/10.1103/physrevb.84.100101" @default.
• W2048659055 hasPublicationYear "2011" @default.
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