Engineering Papers⌕ Search

DOE OSTI · 1289183

Materials Data on Sb11S18 by Materials Project

Abstract

Sb11S18 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eleven inequivalent Sb+3.27+ sites. In the first Sb+3.27+ site, Sb+3.27+ is bonded to five S2- atoms to form distorted SbS5 square pyramids that share corners with six SbS6 octahedra, edges with three SbS6 octahedra, and edges with two equivalent SbS5 square pyramids. The corner-sharing octahedra tilt angles range from 5–87°. There are a spread of Sb–S bond distances ranging from 2.49–3.01 Å. In the second Sb+3.27+ site, Sb+3.27+ is bonded to six S2- atoms to form distorted SbS6 octahedra that share corners with three SbS6 octahedra, corners with four SbS5 square pyramids, and edges with five SbS6 octahedra. The corner-sharing octahedra tilt angles range from 2–8°. There are a spread of Sb–S bond distances ranging from 2.47–3.18 Å. In the third Sb+3.27+ site, Sb+3.27+ is bonded to five S2- atoms to form SbS5 square pyramids that share a cornercorner with one SbS6 octahedra and edges with four SbS5 square pyramids. The corner-sharing octahedral tilt angles are 68°. There are a spread of Sb–S bond distances ranging from 2.47–2.87 Å. In the fourth Sb+3.27+ site, Sb+3.27+ is bonded to five S2- atoms to form SbS5 square pyramids that share corners with two SbS6 octahedra and edges with four SbS5 square pyramids. The corner-sharing octahedra tilt angles range from 71–72°. There are a spread of Sb–S bond distances ranging from 2.52–2.78 Å. In the fifth Sb+3.27+ site, Sb+3.27+ is bonded to five S2- atoms to form distorted SbS5 square pyramids that share corners with eight SbS6 octahedra, edges with two SbS6 octahedra, and edges with two equivalent SbS5 square pyramids. The corner-sharing octahedra tilt angles range from 6–88°. There are a spread of Sb–S bond distances ranging from 2.48–2.96 Å. In the sixth Sb+3.27+ site, Sb+3.27+ is bonded to six S2- atoms to form distorted SbS6 octahedra that share corners with two equivalent SbS6 octahedra, corners with four SbS5 square pyramids, edges with six SbS6 octahedra, and an edgeedge with one SbS5 square pyramid. The corner-sharing octahedra tilt angles range from 2–3°. There are a spread of Sb–S bond distances ranging from 2.59–3.20 Å. In the seventh Sb+3.27+ site, Sb+3.27+ is bonded to six S2- atoms to form distorted SbS6 octahedra that share corners with two equivalent SbS6 octahedra, corners with four SbS5 square pyramids, and edges with five SbS6 octahedra. The corner-sharing octahedra tilt angles range from 2–3°. There are a spread of Sb–S bond distances ranging from 2.49–3.13 Å. In the eighth Sb+3.27+ site, Sb+3.27+ is bonded to five S2- atoms to form SbS5 square pyramids that share a cornercorner with one SbS6 octahedra and edges with four SbS5 square pyramids. The corner-sharing octahedral tilt angles are 68°. There are a spread of Sb–S bond distances ranging from 2.47–2.83 Å. In the ninth Sb+3.27+ site, Sb+3.27+ is bonded to five S2- atoms to form SbS5 square pyramids that share corners with two SbS6 octahedra and edges with four SbS5 square pyramids. The corner-sharing octahedral tilt angles are 71°. There are a spread of Sb–S bond distances ranging from 2.46–2.85 Å. In the tenth Sb+3.27+ site, Sb+3.27+ is bonded to six S2- atoms to form distorted SbS6 octahedra that share a cornercorner with one SbS6 octahedra, corners with four SbS5 square pyramids, edges with two SbS6 octahedra, and edges with three SbS5 square pyramids. The corner-sharing octahedral tilt angles are 8°. There are a spread of Sb–S bond distances ranging from 2.50–3.15 Å. In the eleventh Sb+3.27+ site, Sb+3.27+ is bonded to six S2- atoms to form SbS6 octahedra that share corners with two equivalent SbS6 octahedra, corners with four SbS5 square pyramids, edges with six SbS6 octahedra, and an edgeedge with one SbS5 square pyramid. The corner-sharing octahedra tilt angles range from 2–3°. There are a spread of Sb–S bond distances ranging from 2.62–2.97 Å. There are eighteen inequivalent S2- sites. In the first S2- site, S2- is bonded to six Sb+3.27+ atoms to form distorted edge-sharing SSb6 octahedra. In the second S2- site, S2- is bonded in a water-like geometry to two Sb+3.27+ atoms. In the third S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to four Sb+3.27+ atoms. In the fourth S2- site, S2- is bonded in a distorted trigonal non-coplanar geometry to three Sb+3.27+ atoms. In the fifth S2- site, S2- is bonded in a 3-coordinate geometry to three Sb+3.27+ atoms. In the sixth S2- site, S2- is bonded to five Sb+3.27+ atoms to form distorted edge-sharing SSb5 square pyramids. In the seventh S2- site, S2- is bonded in a water-like geometry to two Sb+3.27+ atoms. In the eighth S2- site, S2- is bonded in a 3-coordinate geometry to three Sb+3.27+ atoms. In the ninth S2- site, S2- is bonded in an L-shaped geometry to two Sb+3.27+ atoms. In the tenth S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Sb+3.27+ atoms. In the eleventh S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to four Sb+3.27+ atoms. In the twelfth S2- site, S2- is bonded in a distorted trigonal non-coplanar geometry to three Sb+3.27+ atoms. In the thirteenth S2- site, S2- is bonded in a 3-coordinate geometry to three Sb+3.27+ atoms. In the fourteenth S2- site, S2- is bonded in a distorted trigonal non-coplanar geometry to three Sb+3.27+ atoms. In the fifteenth S2- site, S2- is bonded in a 3-coordinate geometry to three Sb+3.27+ atoms. In the sixteenth S2- site, S2- is bonded in a trigonal non-coplanar geometry to three Sb+3.27+ atoms. In the seventeenth S2- site, S2- is bonded in a rectangular see-saw-like geometry to four Sb+3.27+ atoms. In the eighteenth S2- site, S2- is bonded in a 3-coordinate geometry to three Sb+3.27+ atoms.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-04-30. Materials Data on Sb11S18 by Materials Project. https://doi.org/10.17188/1289183

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↗