Search NASA⌕ Search

DOE OSTI · 1282537

Materials Data on Ag33(PbO3)14 by Materials Project

Abstract

Ag33(PbO3)14 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are seventeen inequivalent Ag sites. In the first Ag site, Ag is bonded in a linear geometry to two O atoms. There are one shorter (2.13 Å) and one longer (2.14 Å) Ag–O bond lengths. In the second Ag site, Ag is bonded in a linear geometry to two O atoms. Both Ag–O bond lengths are 2.14 Å. In the third Ag site, Ag is bonded in a distorted trigonal planar geometry to three O atoms. There are one shorter (2.32 Å) and two longer (2.33 Å) Ag–O bond lengths. In the fourth Ag site, Ag is bonded in a linear geometry to two O atoms. There are one shorter (2.14 Å) and one longer (2.15 Å) Ag–O bond lengths. In the fifth Ag site, Ag is bonded in a linear geometry to two O atoms. Both Ag–O bond lengths are 2.15 Å. In the sixth Ag site, Ag is bonded in a linear geometry to two O atoms. Both Ag–O bond lengths are 2.15 Å. In the seventh Ag site, Ag is bonded in a trigonal planar geometry to three O atoms. There are one shorter (2.31 Å) and two longer (2.32 Å) Ag–O bond lengths. In the eighth Ag site, Ag is bonded in a linear geometry to two O atoms. Both Ag–O bond lengths are 2.15 Å. In the ninth Ag site, Ag is bonded in a linear geometry to two O atoms. Both Ag–O bond lengths are 2.14 Å. In the tenth Ag site, Ag is bonded in a distorted trigonal non-coplanar geometry to three O atoms. There are one shorter (2.25 Å) and two longer (2.35 Å) Ag–O bond lengths. In the eleventh Ag site, Ag is bonded in a linear geometry to two O atoms. There are one shorter (2.14 Å) and one longer (2.15 Å) Ag–O bond lengths. In the twelfth Ag site, Ag is bonded in a distorted trigonal planar geometry to three O atoms. All Ag–O bond lengths are 2.32 Å. In the thirteenth Ag site, Ag is bonded in a linear geometry to two O atoms. Both Ag–O bond lengths are 2.14 Å. In the fourteenth Ag site, Ag is bonded in a distorted trigonal planar geometry to three O atoms. There are one shorter (2.31 Å) and two longer (2.32 Å) Ag–O bond lengths. In the fifteenth Ag site, Ag is bonded in a distorted trigonal non-coplanar geometry to three O atoms. There are one shorter (2.25 Å) and two longer (2.35 Å) Ag–O bond lengths. In the sixteenth Ag site, Ag is bonded in a linear geometry to two equivalent O atoms. Both Ag–O bond lengths are 2.16 Å. In the seventeenth Ag site, Ag is bonded in a trigonal planar geometry to three O atoms. There are one shorter (2.30 Å) and two longer (2.31 Å) Ag–O bond lengths. There are seven inequivalent Pb sites. In the first Pb site, Pb is bonded to six O atoms to form edge-sharing PbO6 octahedra. There are a spread of Pb–O bond distances ranging from 2.20–2.28 Å. In the second Pb site, Pb is bonded to six O atoms to form edge-sharing PbO6 octahedra. There are three shorter (2.27 Å) and three longer (2.28 Å) Pb–O bond lengths. In the third Pb site, Pb is bonded to six O atoms to form edge-sharing PbO6 octahedra. There are three shorter (2.27 Å) and three longer (2.28 Å) Pb–O bond lengths. In the fourth Pb site, Pb is bonded to six O atoms to form edge-sharing PbO6 octahedra. There are five shorter (2.27 Å) and one longer (2.28 Å) Pb–O bond lengths. In the fifth Pb site, Pb is bonded to six O atoms to form edge-sharing PbO6 octahedra. There are a spread of Pb–O bond distances ranging from 2.20–2.28 Å. In the sixth Pb site, Pb is bonded to six O atoms to form edge-sharing PbO6 octahedra. There are a spread of Pb–O bond distances ranging from 2.20–2.28 Å. In the seventh Pb site, Pb is bonded to six O atoms to form edge-sharing PbO6 octahedra. There are a spread of Pb–O bond distances ranging from 2.20–2.28 Å. There are twenty-one inequivalent O sites. In the first O site, O is bonded to two Ag and two Pb atoms to form corner-sharing OAg2Pb2 tetrahedra. In the second O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the third O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the fourth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the fifth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the sixth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the seventh O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the eighth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the ninth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the tenth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the eleventh O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the twelfth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the thirteenth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the fourteenth O site, O is bonded to two Ag and two equivalent Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the fifteenth O site, O is bonded to two Ag and two Pb atoms to form corner-sharing OAg2Pb2 tetrahedra. In the sixteenth O site, O is bonded in a trigonal non-coplanar geometry to one Ag and two Pb atoms. In the seventeenth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the eighteenth O site, O is bonded to two Ag and two equivalent Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the nineteenth O site, O is bonded in a trigonal non-coplanar geometry to one Ag and two Pb atoms. In the twentieth O site, O is bonded to two Ag and two Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the twenty-first O site, O is bonded to two Ag and two equivalent Pb atoms to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-04-29. Materials Data on Ag33(PbO3)14 by Materials Project. https://doi.org/10.17188/1282537

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↗