Search NASA⌕ Search

DOE OSTI · 1293745

Materials Data on Fe13Cu5O24 by Materials Project

Abstract

Fe13Cu5O24 is Spinel-like structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are thirteen inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with five CuO6 octahedra and corners with seven FeO6 octahedra. The corner-sharing octahedra tilt angles range from 53–63°. There are a spread of Fe–O bond distances ranging from 1.89–2.00 Å. In the second Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with five CuO6 octahedra and corners with seven FeO6 octahedra. The corner-sharing octahedra tilt angles range from 53–63°. There are a spread of Fe–O bond distances ranging from 1.90–1.99 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO4 tetrahedra, edges with three FeO6 octahedra, and edges with three CuO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.03–2.08 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO4 tetrahedra, edges with three FeO6 octahedra, and edges with three CuO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.00–2.09 Å. In the fifth Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with five CuO6 octahedra and corners with seven FeO6 octahedra. The corner-sharing octahedra tilt angles range from 47–64°. There are a spread of Fe–O bond distances ranging from 1.92–1.96 Å. In the sixth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO4 tetrahedra, edges with three FeO6 octahedra, and edges with three CuO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.11 Å. In the seventh Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with five CuO6 octahedra and corners with seven FeO6 octahedra. The corner-sharing octahedra tilt angles range from 53–62°. There are a spread of Fe–O bond distances ranging from 1.92–1.95 Å. In the eighth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO4 tetrahedra, edges with two FeO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.03–2.07 Å. In the ninth Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with five CuO6 octahedra and corners with seven FeO6 octahedra. The corner-sharing octahedra tilt angles range from 52–62°. There are a spread of Fe–O bond distances ranging from 1.91–1.96 Å. In the tenth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO4 tetrahedra, edges with three FeO6 octahedra, and edges with three CuO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.10 Å. In the eleventh Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with five CuO6 octahedra and corners with seven FeO6 octahedra. The corner-sharing octahedra tilt angles range from 48–64°. There is three shorter (1.92 Å) and one longer (1.96 Å) Fe–O bond length. In the twelfth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO4 tetrahedra, edges with three FeO6 octahedra, and edges with three CuO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.09 Å. In the thirteenth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO4 tetrahedra, edges with three FeO6 octahedra, and edges with three CuO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.02–2.08 Å. There are five inequivalent Cu+1.80+ sites. In the first Cu+1.80+ site, Cu+1.80+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six FeO4 tetrahedra, edges with two equivalent CuO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Cu–O bond distances ranging from 2.05–2.26 Å. In the second Cu+1.80+ site, Cu+1.80+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six FeO4 tetrahedra, edges with two equivalent CuO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Cu–O bond distances ranging from 2.04–2.22 Å. In the third Cu+1.80+ site, Cu+1.80+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six FeO4 tetrahedra, an edgeedge with one CuO6 octahedra, and edges with five FeO6 octahedra. There are a spread of Cu–O bond distances ranging from 2.00–2.32 Å. In the fourth Cu+1.80+ site, Cu+1.80+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six FeO4 tetrahedra, edges with two CuO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Cu–O bond distances ranging from 2.00–2.32 Å. In the fifth Cu+1.80+ site, Cu+1.80+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six FeO4 tetrahedra, an edgeedge with one CuO6 octahedra, and edges with five FeO6 octahedra. There are a spread of Cu–O bond distances ranging from 2.00–2.31 Å. There are twenty-four inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Cu+1.80+ atoms. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Cu+1.80+ atoms. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Cu+1.80+ atoms. In the fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Cu+1.80+ atoms. In the fifth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the sixth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the seventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Fe3+ atoms. In the eighth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the ninth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the tenth O2- site, O2- is bonded to three Fe3+ and one Cu+1.80+ atom to form distorted corner-sharing OFe3Cu trigonal pyramids. In the eleventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the twelfth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Cu+1.80+ atoms. In the thirteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the fourteenth O2- site, O2- is bonded to two Fe3+ and two Cu+1.80+ atoms to form distorted corner-sharing OFe2Cu2 trigonal pyramids. In the fifteenth O2- site, O2- is bonded to two Fe3+ and two Cu+1.80+ atoms to form distorted corner-sharing OFe2Cu2 trigonal pyramids. In the sixteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the seventeenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Cu+1.80+ atoms. In the eighteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the nineteenth O2- site, O2- is bonded to three Fe3+ and one Cu+1.80+ atom to form distorted OFe3Cu trigonal pyramids that share corners with two OFe2Cu2 trigonal pyramids and an edgeedge with one OFe4 trigonal pyramid. In the twentieth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the twenty-first O2- site, O2- is bonded to four Fe3+ atoms to form distorted edge-sharing OFe4 trigonal pyramids. In the twenty-second O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the twenty-third O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom. In the twenty-fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Cu+1.80+ atom.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-06-04. Materials Data on Fe13Cu5O24 by Materials Project. https://doi.org/10.17188/1293745

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

Cyclic moisture reactivation of calcium sorbents for long duration thermochemical energy storage

The transition to a flexible and reliable energy infrastructure, using electro-thermal energy generation technologies such as geothermal, concentrated solar power, and nuclear, usually demands simultaneous advancement of thermal energy storage (TES) to support on-demand electricity generation and industrial applications while mitigating the inherent intermittency of renewable energy sources and power outages from direct energy generation. Among TES technologies, thermochemical energy storage (TCES) based on calcium looping emerges as a compelling high-power energy storage candidate due to its high reaction enthalpy, compatibility with elevated operating temperatures, and abundance of low-cost materials. However, the long-term durability of calcium-based sorbents for TCES is hindered by surface sintering and particle aggregation, leading to performance degradation over repeated thermal cycles. This study explores a moisture hydration-based strategy to regenerate a degraded calcium sorbent and mitigate performance degradation for long duration TCES. The addition of moisture transforms calcium oxide into calcium hydroxide and produces intercalation water layers, associated with a regenerated surface area and reduced calcium oxide crystallite size. Both these effects are beneficial in restoring the sorbents' reactivity for carbonization. Additionally, an optimized hydration-assisted reactivation protocol balances the recovered energy storage capacity with heating penalty required for moisture removal from hydrated samples, resulting in an enhanced energy storage capacity up to 176% compared to benchmark sorbents that undergo cycling without reactivation after 60 cycles. In conclusion, these results highlight the potential of hydration-assisted reactivation to enhance the long-term performance of TCES, providing an effective pathway to advancing electro-thermal storage technologies.

36 MATERIALS SCIENCE↗