Engineering Papers⌕ Search

DOE OSTI · 1676041

Materials Data on CdCSBr2N3O by Materials Project

Abstract

CdCNSOBr2N2 crystallizes in the monoclinic Cc space group. The structure is three-dimensional and consists of four nitrogen molecules and one CdCNSOBr2 framework. In the CdCNSOBr2 framework, Cd2+ is bonded to one N, one S2-, and three Br1- atoms to form distorted corner-sharing CdSBr3N trigonal bipyramids. The Cd–N bond length is 2.33 Å. The Cd–S bond length is 2.92 Å. There are a spread of Cd–Br bond distances ranging from 2.67–2.75 Å. C4+ is bonded in a distorted linear geometry to one N and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.63 Å. N is bonded in a bent 150 degrees geometry to one Cd2+ and one C4+ atom. S2- is bonded in a distorted trigonal non-coplanar geometry to one Cd2+, one C4+, and one O2- atom. The S–O bond length is 2.37 Å. O2- is bonded in a distorted trigonal non-coplanar geometry to one S2- and two equivalent Br1- atoms. There are one shorter (2.47 Å) and one longer (2.48 Å) O–Br bond lengths. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a water-like geometry to two equivalent Cd2+ atoms. In the second Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to one Cd2+ and two equivalent O2- atoms.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-05-02. Materials Data on CdCSBr2N3O by Materials Project. https://doi.org/10.17188/1676041

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↗