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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 K2PdO2 by Materials Project

K2PdO2 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. K1+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. There are four shorter (2.80 Å) and two longer (3.13 Å) K–O bond lengths. Pd2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Pd–O bond lengths are 2.09 Å. O2- is bonded in a 2-coordinate geometry to six equivalent K1+ and two equivalent Pd2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K3(PdO2)2 by Materials Project

K3Pd2O4 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 6-coordinate geometry to six equivalent O atoms. There are a spread of K–O bond distances ranging from 2.83–2.92 Å. In the second K site, K is bonded in a 4-coordinate geometry to four equivalent O atoms. All K–O bond lengths are 2.67 Å. There are two inequivalent Pd sites. In the first Pd site, Pd is bonded in a distorted square co-planar geometry to four equivalent O atoms. All Pd–O bond lengths are 2.04 Å. In the second Pd site, Pd is bonded in a square co-planar geometry to four equivalent O atoms. All Pd–O bond lengths are 2.02 Å. O is bonded to four K and two Pd atoms to form a mixture of distorted corner, edge, and face-sharing OK4Pd2 octahedra. The corner-sharing octahedra tilt angles range from 0–71°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KPd2O3 by Materials Project

KPd2O3 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. K is bonded in a 6-coordinate geometry to six equivalent O atoms. There are three shorter (2.70 Å) and three longer (2.82 Å) K–O bond lengths. There are two inequivalent Pd sites. In the first Pd site, Pd is bonded in an octahedral geometry to six equivalent O atoms. All Pd–O bond lengths are 2.07 Å. In the second Pd site, Pd is bonded in a square co-planar geometry to four equivalent O atoms. All Pd–O bond lengths are 2.06 Å. O is bonded to two equivalent K and three Pd atoms to form a mixture of distorted edge and corner-sharing OK2Pd3 trigonal bipyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2PdO4 by Materials Project

K2PdO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. K is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of K–O bond distances ranging from 2.80–2.99 Å. Pd is bonded in a square co-planar geometry to four O atoms. All Pd–O bond lengths are 1.90 Å. There are two inequivalent O sites. In the first O site, O is bonded in a 1-coordinate geometry to three equivalent K and one Pd atom. In the second O site, O is bonded in a 5-coordinate geometry to four equivalent K and one Pd atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2PdO4 by Materials Project

K2PdO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of K–O bond distances ranging from 2.76–2.98 Å. In the second K site, K is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of K–O bond distances ranging from 2.73–3.23 Å. Pd is bonded in a rectangular see-saw-like geometry to four O atoms. There are a spread of Pd–O bond distances ranging from 1.88–1.92 Å. There are four inequivalent O sites. In the first O site, O is bonded in a 1-coordinate geometry to four K and one Pd atom. In the second O site, O is bonded to four K and one Pd atom to form distorted corner-sharing OK4Pd trigonal bipyramids. In the third O site, O is bonded in a 1-coordinate geometry to four K and one Pd atom. In the fourth O site, O is bonded in a 1-coordinate geometry to three K and one Pd atom.

36 MATERIALS SCIENCE↗