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DOE OSTI · 1288721

Materials Data on CeHfO4 by Materials Project

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Abstract

CeHfO4 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Ce4+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Ce–O bond distances ranging from 2.29–2.52 Å. Hf4+ is bonded to six O2- atoms to form distorted edge-sharing HfO6 octahedra. There are a spread of Hf–O bond distances ranging from 2.03–2.23 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ce4+ and one Hf4+ atom. In the second O2- site, O2- is bonded to two equivalent Ce4+ and two equivalent Hf4+ atoms to form a mixture of distorted edge and corner-sharing OCe2Hf2 tetrahedra.

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36 MATERIALS SCIENCECe-Hf-OCeHfO4crystal structure

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2020-07-22. Materials Data on CeHfO4 by Materials Project. https://doi.org/10.17188/1288721

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