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DOE OSTI · 1207179

Materials Data on Al2CoO4 by Materials Project

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Abstract

CoAl2O4 is Spinel structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Co2+ is bonded to four equivalent O2- atoms to form CoO4 tetrahedra that share corners with twelve equivalent AlO6 octahedra. The corner-sharing octahedral tilt angles are 60°. All Co–O bond lengths are 1.98 Å. Al3+ is bonded to six equivalent O2- atoms to form AlO6 octahedra that share corners with six equivalent CoO4 tetrahedra and edges with six equivalent AlO6 octahedra. All Al–O bond lengths are 1.93 Å. O2- is bonded to one Co2+ and three equivalent Al3+ atoms to form a mixture of distorted corner and edge-sharing OAl3Co tetrahedra.

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36 MATERIALS SCIENCEAl-Co-OAl2CoO4crystal structure

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2020-07-16. Materials Data on Al2CoO4 by Materials Project. https://doi.org/10.17188/1207179

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