U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Na4FeNi(PO4)3 by Materials Project
Abstract
Na4NiFe(PO4)3 crystallizes in the trigonal R3c space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are three shorter (2.44 Å) and three longer (2.48 Å) Na–O bond lengths. In the second Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.45–2.96 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent PO4 tetrahedra. There are three shorter (1.99 Å) and three longer (2.10 Å) Fe–O bond lengths. Ni2+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with six equivalent PO4 tetrahedra. There are three shorter (2.01 Å) and three longer (2.12 Å) Ni–O bond lengths. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra and corners with two equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 30–40°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. There are four inequivalent O2- sites. In the first O2-more »
- Authors:
- Publication Date:
- Other Number(s):
- mp-1221201
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- 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)
- Collaborations:
- MIT; UC Berkeley; Duke; U Louvain
- Subject:
- 36 MATERIALS SCIENCE
- Keywords:
- crystal structure; Na4FeNi(PO4)3; Fe-Na-Ni-O-P
- OSTI Identifier:
- 1719675
- DOI:
- https://doi.org/10.17188/1719675
Citation Formats
The Materials Project. Materials Data on Na4FeNi(PO4)3 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1719675.
The Materials Project. Materials Data on Na4FeNi(PO4)3 by Materials Project. United States. doi:https://doi.org/10.17188/1719675
The Materials Project. 2020.
"Materials Data on Na4FeNi(PO4)3 by Materials Project". United States. doi:https://doi.org/10.17188/1719675. https://www.osti.gov/servlets/purl/1719675. Pub date:Thu Apr 30 00:00:00 EDT 2020
@article{osti_1719675,
title = {Materials Data on Na4FeNi(PO4)3 by Materials Project},
author = {The Materials Project},
abstractNote = {Na4NiFe(PO4)3 crystallizes in the trigonal R3c space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are three shorter (2.44 Å) and three longer (2.48 Å) Na–O bond lengths. In the second Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.45–2.96 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent PO4 tetrahedra. There are three shorter (1.99 Å) and three longer (2.10 Å) Fe–O bond lengths. Ni2+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with six equivalent PO4 tetrahedra. There are three shorter (2.01 Å) and three longer (2.12 Å) Ni–O bond lengths. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra and corners with two equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 30–40°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to three Na1+, one Ni2+, and one P5+ atom to form distorted ONa3NiP trigonal bipyramids that share corners with six equivalent ONa3FeP trigonal bipyramids, an edgeedge with one ONa3FeP trigonal bipyramid, and faces with two equivalent ONa3NiP trigonal bipyramids. In the second O2- site, O2- is bonded to three Na1+, one Fe3+, and one P5+ atom to form distorted ONa3FeP trigonal bipyramids that share corners with six equivalent ONa3NiP trigonal bipyramids, an edgeedge with one ONa3NiP trigonal bipyramid, and faces with two equivalent ONa3FeP trigonal bipyramids. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Na1+, one Ni2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Na1+, one Fe3+, and one P5+ atom.},
doi = {10.17188/1719675},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}