Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Sr2Co2O5”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

3 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Sr2Co2O5 by Materials Project

Sr2Co2O5 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.43–3.11 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.43–3.06 Å. In the third Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.43–3.05 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.43–3.11 Å. There are four inequivalent Co3+ sites. In the first Co3+ site, Co3+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 24–26°. There are a spread of Co–O bond distances ranging from 1.82–1.95 Å. In the second Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four equivalent CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 4–5°. There are a spread of Co–O bond distances ranging from 1.86–2.29 Å. In the third Co3+ site, Co3+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 23–26°. There are a spread of Co–O bond distances ranging from 1.82–1.94 Å. In the fourth Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four equivalent CoO6 octahedra and corners with two CoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 4–5°. There are a spread of Co–O bond distances ranging from 1.90–2.38 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to four Sr2+ and two Co3+ atoms. In the second O2- site, O2- is bonded in a 1-coordinate geometry to four Sr2+ and two Co3+ atoms. In the third O2- site, O2- is bonded to two Sr2+ and two Co3+ atoms to form distorted OSr2Co2 tetrahedra that share corners with eight OSr4Co2 octahedra and corners with two equivalent OSr2Co2 tetrahedra. The corner-sharing octahedra tilt angles range from 23–72°. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to four Sr2+ and two Co3+ atoms. In the fifth O2- site, O2- is bonded to four Sr2+ and two Co3+ atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent OSr4Co2 octahedra, corners with four OSr2Co2 tetrahedra, edges with two equivalent OSr4Co2 octahedra, and faces with four OSr4Co2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the sixth O2- site, O2- is bonded to four Sr2+ and two Co3+ atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent OSr4Co2 octahedra, corners with four OSr2Co2 tetrahedra, edges with two equivalent OSr4Co2 octahedra, and faces with four OSr4Co2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to four Sr2+ and two Co3+ atoms. In the eighth O2- site, O2- is bonded to four Sr2+ and two Co3+ atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent OSr4Co2 octahedra, corners with four OSr2Co2 tetrahedra, edges with two equivalent OSr4Co2 octahedra, and faces with four OSr4Co2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the ninth O2- site, O2- is bonded to two Sr2+ and two Co3+ atoms to form distorted OSr2Co2 tetrahedra that share corners with eight OSr4Co2 octahedra and corners with two equivalent OSr2Co2 tetrahedra. The corner-sharing octahedra tilt angles range from 22–72°. In the tenth O2- site, O2- is bonded to four Sr2+ and two Co3+ atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent OSr4Co2 octahedra, corners with four OSr2Co2 tetrahedra, edges with two equivalent OSr4Co2 octahedra, and faces with four OSr4Co2 octahedra. The corner-sharing octahedral tilt angles are 1°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2Co2O5 by Materials Project

Sr2Co2O5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.48–3.08 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.47–3.08 Å. There are three inequivalent Co3+ sites. In the first Co3+ site, Co3+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 25°. There are a spread of Co–O bond distances ranging from 1.81–1.93 Å. In the second Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four equivalent CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 4°. There are four shorter (1.94 Å) and two longer (2.37 Å) Co–O bond lengths. In the third Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four equivalent CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 5°. There are four shorter (1.94 Å) and two longer (2.37 Å) Co–O bond lengths. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to two Sr2+ and two equivalent Co3+ atoms to form distorted OSr2Co2 tetrahedra that share corners with eight OSr4Co2 octahedra and corners with two equivalent OSr2Co2 tetrahedra. The corner-sharing octahedra tilt angles range from 22–72°. In the second O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Co3+ atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent OSr4Co2 octahedra, corners with four equivalent OSr2Co2 tetrahedra, edges with two equivalent OSr4Co2 octahedra, and faces with four equivalent OSr4Co2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the third O2- site, O2- is bonded in a 1-coordinate geometry to four equivalent Sr2+ and two Co3+ atoms. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to four equivalent Sr2+ and two Co3+ atoms. In the fifth O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Co3+ atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent OSr4Co2 octahedra, corners with four equivalent OSr2Co2 tetrahedra, edges with two equivalent OSr4Co2 octahedra, and faces with four equivalent OSr4Co2 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr2Co2O5 by Materials Project

Sr2Co2O5 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.48–3.17 Å. In the second Sr2+ site, Sr2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Sr–O bond distances ranging from 2.49–2.84 Å. There are two inequivalent Co3+ sites. In the first Co3+ site, Co3+ is bonded in a distorted trigonal pyramidal geometry to four O2- atoms. There are a spread of Co–O bond distances ranging from 1.78–2.01 Å. In the second Co3+ site, Co3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Co–O bond distances ranging from 1.76–2.52 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to two Sr2+ and two Co3+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to four Sr2+ and two Co3+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Sr2+ and one Co3+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and two Co3+ atoms. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and two Co3+ atoms.

36 MATERIALS SCIENCE↗