Search NASA⌕ Search

DOE OSTI · 1729377

Materials Data on Cs2Mo5(P3O11)3 by Materials Project

Abstract

Cs2Mo5(P3O11)3 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are three inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 1-coordinate geometry to eight O2- atoms. There are a spread of Cs–O bond distances ranging from 3.30–3.58 Å. In the second Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (3.01 Å) and two longer (3.04 Å) Cs–O bond lengths. In the third Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to four O2- atoms. There are two shorter (3.00 Å) and two longer (3.08 Å) Cs–O bond lengths. There are five inequivalent Mo+3.80+ sites. In the first Mo+3.80+ site, Mo+3.80+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra and corners with five PO4 tetrahedra. The corner-sharing octahedral tilt angles are 14°. There are a spread of Mo–O bond distances ranging from 1.92–2.13 Å. In the second Mo+3.80+ site, Mo+3.80+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra and corners with five PO4 tetrahedra. The corner-sharing octahedral tilt angles are 7°. There are a spread of Mo–O bond distances ranging from 1.89–2.13 Å. In the third Mo+3.80+ site, Mo+3.80+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra and corners with five PO4 tetrahedra. The corner-sharing octahedral tilt angles are 14°. There are a spread of Mo–O bond distances ranging from 1.92–2.12 Å. In the fourth Mo+3.80+ site, Mo+3.80+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra and corners with five PO4 tetrahedra. The corner-sharing octahedral tilt angles are 7°. There are a spread of Mo–O bond distances ranging from 1.89–2.12 Å. In the fifth Mo+3.80+ site, Mo+3.80+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Mo–O bond distances ranging from 2.11–2.16 Å. There are nine inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MoO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 33–41°. There are a spread of P–O bond distances ranging from 1.51–1.60 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MoO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 14–46°. There are a spread of P–O bond distances ranging from 1.52–1.62 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MoO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 34–41°. There are a spread of P–O bond distances ranging from 1.51–1.60 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MoO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 26–42°. There are a spread of P–O bond distances ranging from 1.51–1.63 Å. In the fifth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MoO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 12–47°. There are a spread of P–O bond distances ranging from 1.52–1.62 Å. In the sixth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MoO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 29–43°. There are a spread of P–O bond distances ranging from 1.51–1.62 Å. In the seventh P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent MoO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 6–58°. There are a spread of P–O bond distances ranging from 1.48–1.61 Å. In the eighth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MoO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 14–44°. There are a spread of P–O bond distances ranging from 1.52–1.65 Å. In the ninth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MoO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 9–47°. There are a spread of P–O bond distances ranging from 1.52–1.64 Å. There are thirty-three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mo+3.80+ and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mo+3.80+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a linear geometry to two Mo+3.80+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mo+3.80+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the tenth O2- site, O2- is bonded in a distorted linear geometry to one Mo+3.80+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a linear geometry to two Mo+3.80+ atoms. In the twelfth O2- site, O2- is bonded in a distorted linear geometry to one Mo+3.80+ and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a 1-coordinate geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the sixteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mo+3.80+ and one P5+ atom. In the seventeenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mo+3.80+ and one P5+ atom. In the eighteenth O2- site, O2- is bonded in a distorted linear geometry to one Mo+3.80+ and one P5+ atom. In the nineteenth O2- site, O2- is bonded in a 2-coordinate geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the twentieth O2- site, O2- is bonded in a distorted linear geometry to one Mo+3.80+ and one P5+ atom. In the twenty-first O2- site, O2- is bonded in a 1-coordinate geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the twenty-second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mo+3.80+ and one P5+ atom. In the twenty-third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the twenty-fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Cs1+, one Mo+3.80+, and one P5+ atom. In the twenty-fifth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mo+3.80+ and one P5+ atom. In the twenty-sixth O2- site, O2- is bonded in a linear geometry to one Mo+3.80+ and one P5+ atom. In the twenty-seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Mo+3.80+ and one P5+ atom. In the twenty-eighth O2- site, O2- is bonded in a 1-coordinate geometry to one Mo+3.80+ and one P5+ atom. In the twenty-ninth O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the thirtieth O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the thirty-first O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the thirty-second O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the thirty-third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two P5+ atoms.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-04-29. Materials Data on Cs2Mo5(P3O11)3 by Materials Project. https://doi.org/10.17188/1729377

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↗