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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on KH by Materials Project

HK1 is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. K1+ is bonded to six equivalent H1- atoms to form a mixture of corner and edge-sharing KH6 octahedra. The corner-sharing octahedral tilt angles are 0°. All K–H bond lengths are 2.85 Å. H1- is bonded to six equivalent K1+ atoms to form a mixture of corner and edge-sharing HK6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KH3 by Materials Project

KH3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. K1+ is bonded in a distorted body-centered cubic geometry to twelve H+0.33- atoms. There are eight shorter (2.61 Å) and four longer (2.93 Å) K–H bond lengths. There are two inequivalent H+0.33- sites. In the first H+0.33- site, H+0.33- is bonded to four equivalent K1+ atoms to form a mixture of corner and edge-sharing HK4 tetrahedra. In the second H+0.33- site, H+0.33- is bonded in a square co-planar geometry to four equivalent K1+ atoms.

36 MATERIALS SCIENCE↗