Engineering Papers⌕ Search

DOE OSTI · 1758739

Materials Data on Cs4Mn3O6 by Materials Project

Abstract

Cs4Mn3O6 crystallizes in the monoclinic P2 space group. The structure is three-dimensional. there are eight inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cs–O bond distances ranging from 2.92–3.05 Å. In the second Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Cs–O bond distances ranging from 3.03–3.54 Å. In the third Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Cs–O bond distances ranging from 3.09–3.55 Å. In the fourth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cs–O bond distances ranging from 3.16–3.26 Å. In the fifth Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Cs–O bond distances ranging from 2.95–3.52 Å. In the sixth Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Cs–O bond distances ranging from 2.92–3.04 Å. In the seventh Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Cs–O bond distances ranging from 2.95–3.43 Å. In the eighth Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Cs–O bond distances ranging from 2.96–3.49 Å. There are twelve inequivalent Mn+2.67+ sites. In the first Mn+2.67+ site, Mn+2.67+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.07 Å) and two longer (2.08 Å) Mn–O bond lengths. In the second Mn+2.67+ site, Mn+2.67+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.07 Å) and two longer (2.08 Å) Mn–O bond lengths. In the third Mn+2.67+ site, Mn+2.67+ is bonded in a distorted square co-planar geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (1.94 Å) Mn–O bond length. In the fourth Mn+2.67+ site, Mn+2.67+ is bonded in a distorted square co-planar geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (1.94 Å) Mn–O bond length. In the fifth Mn+2.67+ site, Mn+2.67+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (1.95 Å) Mn–O bond length. In the sixth Mn+2.67+ site, Mn+2.67+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.08 Å) and two longer (2.09 Å) Mn–O bond lengths. In the seventh Mn+2.67+ site, Mn+2.67+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.07 Å) and two longer (2.08 Å) Mn–O bond lengths. In the eighth Mn+2.67+ site, Mn+2.67+ is bonded in a distorted square co-planar geometry to four O2- atoms. There is two shorter (1.93 Å) and two longer (1.94 Å) Mn–O bond length. In the ninth Mn+2.67+ site, Mn+2.67+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (1.95 Å) Mn–O bond length. In the tenth Mn+2.67+ site, Mn+2.67+ is bonded in a distorted square co-planar geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (1.94 Å) Mn–O bond length. In the eleventh Mn+2.67+ site, Mn+2.67+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (1.95 Å) Mn–O bond length. In the twelfth Mn+2.67+ site, Mn+2.67+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (1.95 Å) Mn–O bond length. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Cs1+ and two Mn+2.67+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to three Cs1+ and two Mn+2.67+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two Cs1+ and two Mn+2.67+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to four Cs1+ and two Mn+2.67+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to four Cs1+ and two Mn+2.67+ atoms. In the sixth O2- site, O2- is bonded in a distorted L-shaped geometry to three Cs1+ and two Mn+2.67+ atoms. In the seventh O2- site, O2- is bonded in a distorted L-shaped geometry to two Cs1+ and two Mn+2.67+ atoms. In the eighth O2- site, O2- is bonded in a distorted L-shaped geometry to four Cs1+ and two Mn+2.67+ atoms. In the ninth O2- site, O2- is bonded in a distorted L-shaped geometry to four Cs1+ and two Mn+2.67+ atoms. In the tenth O2- site, O2- is bonded in a 2-coordinate geometry to four Cs1+ and two Mn+2.67+ atoms. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to four Cs1+ and two Mn+2.67+ atoms. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to three Cs1+ and two Mn+2.67+ atoms.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-09-03. Materials Data on Cs4Mn3O6 by Materials Project. https://doi.org/10.17188/1758739

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↗