Engineering Papers⌕ Search

DOE OSTI · 1290779

Materials Data on Ti2Sn3O10 by Materials Project

Abstract

Ti2Sn3O10 is Hydrophilite-derived structured and crystallizes in the orthorhombic Cmm2 space group. The structure is three-dimensional. there are four inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent TiO6 octahedra, corners with four equivalent SnO6 octahedra, and edges with two SnO6 octahedra. The corner-sharing octahedra tilt angles range from 45–52°. There are a spread of Ti–O bond distances ranging from 1.95–2.03 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with eight SnO6 octahedra, an edgeedge with one TiO6 octahedra, and an edgeedge with one SnO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Ti–O bond distances ranging from 1.97–2.01 Å. In the third Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with eight SnO6 octahedra, an edgeedge with one TiO6 octahedra, and an edgeedge with one SnO6 octahedra. The corner-sharing octahedra tilt angles range from 48–50°. There is two shorter (1.97 Å) and four longer (2.00 Å) Ti–O bond length. In the fourth Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent TiO6 octahedra, corners with four equivalent SnO6 octahedra, and edges with two SnO6 octahedra. The corner-sharing octahedra tilt angles range from 45–52°. There are a spread of Ti–O bond distances ranging from 1.95–2.03 Å. There are six inequivalent Sn4+ sites. In the first Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with four equivalent TiO6 octahedra, corners with four equivalent SnO6 octahedra, and edges with two TiO6 octahedra. The corner-sharing octahedra tilt angles range from 49–54°. There are a spread of Sn–O bond distances ranging from 2.08–2.11 Å. In the second Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with eight SnO6 octahedra and edges with two TiO6 octahedra. The corner-sharing octahedra tilt angles range from 51–54°. There are two shorter (2.06 Å) and four longer (2.10 Å) Sn–O bond lengths. In the third Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with four equivalent TiO6 octahedra, corners with four equivalent SnO6 octahedra, and edges with two SnO6 octahedra. The corner-sharing octahedra tilt angles range from 48–54°. There are four shorter (2.08 Å) and two longer (2.09 Å) Sn–O bond lengths. In the fourth Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with eight TiO6 octahedra and edges with two SnO6 octahedra. The corner-sharing octahedra tilt angles range from 49–51°. There are four shorter (2.07 Å) and two longer (2.12 Å) Sn–O bond lengths. In the fifth Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with four equivalent TiO6 octahedra, corners with four equivalent SnO6 octahedra, an edgeedge with one TiO6 octahedra, and an edgeedge with one SnO6 octahedra. The corner-sharing octahedra tilt angles range from 48–54°. There are four shorter (2.09 Å) and two longer (2.10 Å) Sn–O bond lengths. In the sixth Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with four equivalent TiO6 octahedra, corners with four equivalent SnO6 octahedra, an edgeedge with one TiO6 octahedra, and an edgeedge with one SnO6 octahedra. The corner-sharing octahedra tilt angles range from 50–53°. All Sn–O bond lengths are 2.09 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Sn4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Sn4+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ti4+ and two Sn4+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ti4+ and two Sn4+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ti4+ and two Sn4+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Ti4+ and one Sn4+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ti4+ and two Sn4+ atoms. In the eighth O2- site, O2- is bonded in a trigonal planar geometry to three Sn4+ atoms. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ti4+ and two Sn4+ atoms. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ti4+ and two Sn4+ atoms.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-04-29. Materials Data on Ti2Sn3O10 by Materials Project. https://doi.org/10.17188/1290779

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↗