Search NASA⌕ Search

DOE OSTI · 1704394

Materials Data on Sr20P12Br(O16F)3 by Materials Project

Abstract

Sr20P12Br(O16F)3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twenty inequivalent Sr sites. In the first Sr site, Sr is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Sr–O bond distances ranging from 2.59–2.96 Å. In the second Sr site, Sr is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Sr–O bond distances ranging from 2.58–2.99 Å. In the third Sr site, Sr is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Sr–O bond distances ranging from 2.57–3.09 Å. In the fourth Sr site, Sr is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Sr–O bond distances ranging from 2.59–3.07 Å. In the fifth Sr site, Sr is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Sr–O bond distances ranging from 2.56–3.09 Å. In the sixth Sr site, Sr is bonded in a 6-coordinate geometry to six O atoms. There are a spread of Sr–O bond distances ranging from 2.54–2.59 Å. In the seventh Sr site, Sr is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Sr–O bond distances ranging from 2.60–2.96 Å. In the eighth Sr site, Sr is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Sr–O bond distances ranging from 2.59–2.99 Å. In the ninth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.51–2.92 Å. The Sr–F bond length is 2.43 Å. In the tenth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one Br atom. There are a spread of Sr–O bond distances ranging from 2.45–2.84 Å. The Sr–Br bond length is 2.97 Å. In the eleventh Sr site, Sr is bonded in a 7-coordinate geometry to six O and one Br atom. There are a spread of Sr–O bond distances ranging from 2.43–2.85 Å. The Sr–Br bond length is 2.95 Å. In the twelfth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.54–2.91 Å. The Sr–F bond length is 2.45 Å. In the thirteenth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one Br atom. There are a spread of Sr–O bond distances ranging from 2.45–2.85 Å. The Sr–Br bond length is 2.96 Å. In the fourteenth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.50–2.86 Å. The Sr–F bond length is 2.43 Å. In the fifteenth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.54–2.92 Å. The Sr–F bond length is 2.52 Å. In the sixteenth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.51–2.85 Å. The Sr–F bond length is 2.43 Å. In the seventeenth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.53–2.85 Å. The Sr–F bond length is 2.44 Å. In the eighteenth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.51–2.92 Å. The Sr–F bond length is 2.52 Å. In the nineteenth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.51–2.86 Å. The Sr–F bond length is 2.43 Å. In the twentieth Sr site, Sr is bonded in a 7-coordinate geometry to six O and one F atom. There are a spread of Sr–O bond distances ranging from 2.54–2.90 Å. The Sr–F bond length is 2.52 Å. There are twelve inequivalent P sites. In the first P site, P is bonded in a tetrahedral geometry to four O atoms. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the second P site, P is bonded in a tetrahedral geometry to four O atoms. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the third P site, P is bonded in a tetrahedral geometry to four O atoms. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the fourth P site, P is bonded in a tetrahedral geometry to four O atoms. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the fifth P site, P is bonded in a tetrahedral geometry to four O atoms. All P–O bond lengths are 1.56 Å. In the sixth P site, P is bonded in a tetrahedral geometry to four O atoms. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the seventh P site, P is bonded in a tetrahedral geometry to four O atoms. There is one shorter (1.55 Å) and three longer (1.56 Å) P–O bond length. In the eighth P site, P is bonded in a tetrahedral geometry to four O atoms. There is three shorter (1.56 Å) and one longer (1.57 Å) P–O bond length. In the ninth P site, P is bonded in a tetrahedral geometry to four O atoms. There is three shorter (1.56 Å) and one longer (1.57 Å) P–O bond length. In the tenth P site, P is bonded in a tetrahedral geometry to four O atoms. There is one shorter (1.55 Å) and three longer (1.56 Å) P–O bond length. In the eleventh P site, P is bonded in a tetrahedral geometry to four O atoms. There is one shorter (1.55 Å) and three longer (1.56 Å) P–O bond length. In the twelfth P site, P is bonded in a tetrahedral geometry to four O atoms. There is three shorter (1.56 Å) and one longer (1.57 Å) P–O bond length. There are forty-eight inequivalent O sites. In the first O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the second O site, O is bonded in a distorted single-bond geometry to two Sr and one P atom. In the third O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the fourth O site, O is bonded in a 1-coordinate geometry to two Sr and one P atom. In the fifth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the sixth O site, O is bonded in a distorted single-bond geometry to two Sr and one P atom. In the seventh O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the eighth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the ninth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the tenth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the eleventh O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the twelfth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the thirteenth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the fourteenth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the fifteenth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the sixteenth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the seventeenth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the eighteenth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the nineteenth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the twentieth O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the twenty-first O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the twenty-second O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the twenty-third O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the twenty-fourth O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the twenty-fifth O site, O is bonded in a distorted tetrahedral geometry to three Sr and one P atom. In the twenty-sixth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the twenty-seventh O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the twenty-eighth O site, O is bonded in a distorted tetrahedral geometry to three Sr and one P atom. In the twenty-ninth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the thirtieth O site, O is bonded in a 4-coordinate geometry to three Sr and one P atom. In the thirty-first O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the thirty-second O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the thirty-third O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the thirty-fourth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the thirty-fifth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the thirty-sixth O site, O is bonded in a 4-coordinate geometry to three Sr and one P atom. In the thirty-seventh O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the thirty-eighth O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the thirty-ninth O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the fortieth O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the forty-first O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the forty-second O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the forty-third O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the forty-fourth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the forty-fifth O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. In the forty-sixth O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the forty-seventh O site, O is bonded in a 1-coordinate geometry to three Sr and one P atom. In the forty-eighth O site, O is bonded in a distorted single-bond geometry to three Sr and one P atom. Br is bonded in a 3-coordinate geometry to three Sr atoms. There are three inequivalent F sites. In the first F site, F is bonded in a trigonal planar geometry to three Sr atoms. In the second F site, F is bonded in a trigonal non-coplanar geometry to three Sr atoms. In the third F site, F is bonded in a trigonal planar geometry to three Sr atoms.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-04-30. Materials Data on Sr20P12Br(O16F)3 by Materials Project. https://doi.org/10.17188/1704394

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↗