Search NASA⌕ Search

DOE OSTI · 1752682

Materials Data on CeBi2(Rh2O5)3 by Materials Project

Abstract

CeBi2(Rh2O5)3 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are three inequivalent Ce3+ sites. In the first Ce3+ site, Ce3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ce–O bond distances ranging from 2.20–2.46 Å. In the second Ce3+ site, Ce3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ce–O bond distances ranging from 2.23–2.46 Å. In the third Ce3+ site, Ce3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ce–O bond distances ranging from 2.20–2.46 Å. There are twelve inequivalent Rh+3.50+ sites. In the first Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 47–56°. There are a spread of Rh–O bond distances ranging from 2.03–2.10 Å. In the second Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 47–56°. There are a spread of Rh–O bond distances ranging from 2.02–2.11 Å. In the third Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 47–56°. There are a spread of Rh–O bond distances ranging from 2.02–2.10 Å. In the fourth Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 47–56°. There are a spread of Rh–O bond distances ranging from 2.03–2.10 Å. In the fifth Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 47–56°. There are a spread of Rh–O bond distances ranging from 2.03–2.10 Å. In the sixth Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 47–56°. There are a spread of Rh–O bond distances ranging from 2.03–2.10 Å. In the seventh Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 50–57°. There are a spread of Rh–O bond distances ranging from 2.02–2.11 Å. In the eighth Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 48–57°. There are a spread of Rh–O bond distances ranging from 2.01–2.10 Å. In the ninth Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 48–57°. There are a spread of Rh–O bond distances ranging from 2.01–2.10 Å. In the tenth Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 50–57°. There are a spread of Rh–O bond distances ranging from 2.02–2.11 Å. In the eleventh Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 50–57°. There are a spread of Rh–O bond distances ranging from 2.02–2.10 Å. In the twelfth Rh+3.50+ site, Rh+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 50–57°. There are a spread of Rh–O bond distances ranging from 2.02–2.10 Å. There are five inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.23–2.54 Å. In the second Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–2.55 Å. In the third Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–2.55 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–2.55 Å. In the fifth Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–2.54 Å. There are thirty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to three Rh+3.50+ and one Bi3+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Rh+3.50+ and one Bi3+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Rh+3.50+ and one Bi3+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Rh+3.50+ and one Bi3+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to three Rh+3.50+ and one Bi3+ atom. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to three Rh+3.50+ and one Bi3+ atom. In the seventh O2- site, O2- is bonded to one Ce3+ and three Rh+3.50+ atoms to form distorted corner-sharing OCeRh3 trigonal pyramids. In the eighth O2- site, O2- is bonded to one Ce3+ and three Rh+3.50+ atoms to form distorted corner-sharing OCeRh3 trigonal pyramids. In the ninth O2- site, O2- is bonded to one Ce3+ and three Rh+3.50+ atoms to form distorted corner-sharing OCeRh3 trigonal pyramids. In the tenth O2- site, O2- is bonded to one Ce3+ and three Rh+3.50+ atoms to form distorted corner-sharing OCeRh3 trigonal pyramids. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to three Rh+3.50+ and one Bi3+ atom. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to three Rh+3.50+ and one Bi3+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Rh+3.50+ and two Bi3+ atoms. In the fourteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Rh+3.50+ and two Bi3+ atoms. In the fifteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Rh+3.50+ and two Bi3+ atoms. In the sixteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Rh+3.50+ and two Bi3+ atoms. In the seventeenth O2- site, O2- is bonded in a 4-coordinate geometry to two Rh+3.50+ and two Bi3+ atoms. In the eighteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Rh+3.50+ and two Bi3+ atoms. In the nineteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Ce3+ and two Rh+3.50+ atoms. In the twentieth O2- site, O2- is bonded in a 4-coordinate geometry to one Ce3+, two Rh+3.50+, and one Bi3+ atom. In the twenty-first O2- site, O2- is bonded in a 4-coordinate geometry to one Ce3+, two Rh+3.50+, and one Bi3+ atom. In the twenty-second O2- site, O2- is bonded in a 4-coordinate geometry to two Ce3+ and two Rh+3.50+ atoms. In the twenty-third O2- site, O2- is bonded in a 4-coordinate geometry to one Ce3+, two Rh+3.50+, and one Bi3+ atom. In the twenty-fourth O2- site, O2- is bonded in a 4-coordinate geometry to one Ce3+, two Rh+3.50+, and one Bi3+ atom. In the twenty-fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Rh+3.50+ and one Bi3+ atom. In the twenty-sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Rh+3.50+ and one Bi3+ atom. In the twenty-seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Rh+3.50+ and one Bi3+ atom. In the twenty-eighth O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Rh+3.50+ and one Bi3+ atom. In the twenty-ninth O2- site, O2- is bonded in a trigonal planar geometry to one Ce3+ and two equivalent Rh+3.50+ atoms. In the thirtieth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Rh+3.50+ and one Bi3+ atom. In the thirty-first O2- site, O2- is bonded in a trigonal planar geometry to one Ce3+ and two equivalent Rh+3.50+ atoms. In the thirty-second O2- site, O2- is bonded in a trigonal planar geometry to one Ce3+ and two Rh+3.50+ atoms.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-05-02. Materials Data on CeBi2(Rh2O5)3 by Materials Project. https://doi.org/10.17188/1752682

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↗