Search NASA⌕ Search

DOE OSTI · 1741185

Materials Data on TlIn by Materials Project

Abstract

TlIn1 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Tl sites. In the first Tl site, Tl is bonded to six equivalent Tl and six In atoms to form TlTl6In6 cuboctahedra that share corners with twelve TlTl6In6 cuboctahedra, edges with twelve TlTl6In6 cuboctahedra, edges with twelve InTl6In6 cuboctahedra, faces with six equivalent TlTl6In6 cuboctahedra, and faces with twelve InTl6In6 cuboctahedra. All Tl–Tl bond lengths are 3.47 Å. All Tl–In bond lengths are 3.43 Å. In the second Tl site, Tl is bonded to ten equivalent Tl and six In atoms to form TlTl10In6 cuboctahedra that share corners with ten InTl6In6 cuboctahedra, corners with twelve TlTl6In6 cuboctahedra, edges with eight InTl6In6 cuboctahedra, edges with sixteen TlTl6In6 cuboctahedra, faces with sixteen equivalent TlTl10In6 cuboctahedra, and faces with eighteen InTl6In6 cuboctahedra. There are a spread of Tl–Tl bond distances ranging from 3.47–6.93 Å. All Tl–In bond lengths are 3.43 Å. There are three inequivalent In sites. In the first In site, In is bonded to six equivalent Tl and six equivalent In atoms to form distorted InTl6In6 cuboctahedra that share corners with twelve InTl6In6 cuboctahedra, edges with twelve equivalent TlTl6In6 cuboctahedra, edges with twelve InTl6In6 cuboctahedra, faces with six equivalent InTl6In6 cuboctahedra, and faces with twelve equivalent TlTl6In6 cuboctahedra. All In–In bond lengths are 3.47 Å. In the second In site, In is bonded to six Tl and six equivalent In atoms to form distorted InTl6In6 cuboctahedra that share corners with five equivalent TlTl10In6 cuboctahedra, corners with twelve InTl6In6 cuboctahedra, edges with ten TlTl6In6 cuboctahedra, edges with twelve InTl6In6 cuboctahedra, faces with six equivalent InTl6In6 cuboctahedra, and faces with fifteen TlTl6In6 cuboctahedra. All In–Tl bond lengths are 3.43 Å. All In–In bond lengths are 3.47 Å. In the third In site, In is bonded to six Tl and six equivalent In atoms to form distorted InTl6In6 cuboctahedra that share corners with five equivalent TlTl10In6 cuboctahedra, corners with twelve InTl6In6 cuboctahedra, edges with ten TlTl6In6 cuboctahedra, edges with twelve InTl6In6 cuboctahedra, faces with six equivalent InTl6In6 cuboctahedra, and faces with fifteen TlTl6In6 cuboctahedra. All In–In bond lengths are 3.47 Å.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-05-03. Materials Data on TlIn by Materials Project. https://doi.org/10.17188/1741185

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↗