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Title: Materials Data on Fe2CoO4 by Materials Project

Abstract

CoFe2O4 is Spinel-like structured and crystallizes in the trigonal P3_121 space group. The structure is three-dimensional. there are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with six equivalent FeO6 octahedra and corners with six CoO6 octahedra. The corner-sharing octahedra tilt angles range from 55–59°. There is two shorter (1.92 Å) and two longer (1.95 Å) Fe–O bond length. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent FeO4 tetrahedra, edges with two equivalent FeO6 octahedra, and edges with four CoO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.04–2.06 Å. There are two inequivalent Co2+ sites. In the first Co2+ site, Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six equivalent FeO4 tetrahedra, edges with two equivalent CoO6 octahedra, and edges with four equivalent FeO6 octahedra. There are a spread of Co–O bond distances ranging from 2.09–2.14 Å. In the second Co2+ site, Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six equivalent FeO4more » tetrahedra, edges with two equivalent CoO6 octahedra, and edges with four equivalent FeO6 octahedra. There are a spread of Co–O bond distances ranging from 2.10–2.13 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Co2+ atoms. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Co2+ atoms. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Co2+ atom. In the fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Co2+ atom.« less

Publication Date:
Other Number(s):
mp-36738
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Fe2CoO4; Co-Fe-O
OSTI Identifier:
1207221
DOI:
https://doi.org/10.17188/1207221

Citation Formats

The Materials Project. Materials Data on Fe2CoO4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1207221.
The Materials Project. Materials Data on Fe2CoO4 by Materials Project. United States. doi:https://doi.org/10.17188/1207221
The Materials Project. 2020. "Materials Data on Fe2CoO4 by Materials Project". United States. doi:https://doi.org/10.17188/1207221. https://www.osti.gov/servlets/purl/1207221. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1207221,
title = {Materials Data on Fe2CoO4 by Materials Project},
author = {The Materials Project},
abstractNote = {CoFe2O4 is Spinel-like structured and crystallizes in the trigonal P3_121 space group. The structure is three-dimensional. there are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with six equivalent FeO6 octahedra and corners with six CoO6 octahedra. The corner-sharing octahedra tilt angles range from 55–59°. There is two shorter (1.92 Å) and two longer (1.95 Å) Fe–O bond length. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent FeO4 tetrahedra, edges with two equivalent FeO6 octahedra, and edges with four CoO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.04–2.06 Å. There are two inequivalent Co2+ sites. In the first Co2+ site, Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six equivalent FeO4 tetrahedra, edges with two equivalent CoO6 octahedra, and edges with four equivalent FeO6 octahedra. There are a spread of Co–O bond distances ranging from 2.09–2.14 Å. In the second Co2+ site, Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six equivalent FeO4 tetrahedra, edges with two equivalent CoO6 octahedra, and edges with four equivalent FeO6 octahedra. There are a spread of Co–O bond distances ranging from 2.10–2.13 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Co2+ atoms. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Co2+ atoms. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Co2+ atom. In the fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Co2+ atom.},
doi = {10.17188/1207221},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}