Search NASA⌕ Search

DOE OSTI · 1275437

Materials Data on CuH5C5NCl by Materials Project

Abstract

CuC5NH5Cl crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of one CuC5NH5Cl sheet oriented in the (-1, 0, 2) direction. Cu1+ is bonded in a 5-coordinate geometry to two C+0.40-, one N3-, and two equivalent Cl1- atoms. There are one shorter (2.06 Å) and one longer (2.13 Å) Cu–C bond lengths. The Cu–N bond length is 1.94 Å. There are one shorter (2.30 Å) and one longer (2.47 Å) Cu–Cl bond lengths. There are five inequivalent C+0.40- sites. In the first C+0.40- site, C+0.40- is bonded in a distorted single-bond geometry to two C+0.40- and one H1+ atom. There is one shorter (1.36 Å) and one longer (1.40 Å) C–C bond length. The C–H bond length is 1.09 Å. In the second C+0.40- site, C+0.40- is bonded in a distorted linear geometry to one C+0.40- and one N3- atom. The C–N bond length is 1.17 Å. In the third C+0.40- site, C+0.40- is bonded in a distorted bent 120 degrees geometry to one Cu1+ and two H1+ atoms. Both C–H bond lengths are 1.09 Å. In the fourth C+0.40- site, C+0.40- is bonded in a distorted single-bond geometry to two C+0.40- and one H1+ atom. The C–C bond length is 1.44 Å. The C–H bond length is 1.09 Å. In the fifth C+0.40- site, C+0.40- is bonded in a distorted single-bond geometry to one Cu1+, one C+0.40-, and one H1+ atom. The C–H bond length is 1.10 Å. N3- is bonded in a linear geometry to one Cu1+ and one C+0.40- atom. There are five inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C+0.40- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C+0.40- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C+0.40- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.40- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.40- atom. Cl1- is bonded in an L-shaped geometry to two equivalent Cu1+ atoms.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

2020-05-02. Materials Data on CuH5C5NCl by Materials Project. https://doi.org/10.17188/1275437

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↗