Results for “Ce-Pd-Pt” | Engineering Papers

DOE OSTI2020

Materials Data on CePdPt4 by Materials Project

CePt4Pd crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Ce4+ is bonded in a distorted trigonal planar geometry to fifteen Pt2- atoms. There are three shorter (3.10 Å) and twelve longer (3.49 Å) Ce–Pt bond lengths. There are two inequivalent Pt2- sites. In the first Pt2- site, Pt2- is bonded to three equivalent Ce4+, six equivalent Pt2-, and three equivalent Pd4+ atoms to form distorted PtCe3Pd3Pt6 cuboctahedra that share corners with twelve equivalent PtCe4Pd2Pt6 cuboctahedra, edges with six equivalent PtCe3Pd3Pt6 cuboctahedra, and faces with twenty PtCe3Pd3Pt6 cuboctahedra. All Pt–Pt bond lengths are 2.72 Å. All Pt–Pd bond lengths are 3.10 Å. In the second Pt2- site, Pt2- is bonded to four equivalent Ce4+, six Pt2-, and two equivalent Pd4+ atoms to form PtCe4Pd2Pt6 cuboctahedra that share corners with twenty PtCe3Pd3Pt6 cuboctahedra, edges with ten equivalent PtCe4Pd2Pt6 cuboctahedra, and faces with sixteen PtCe3Pd3Pt6 cuboctahedra. There are two shorter (2.68 Å) and two longer (2.70 Å) Pt–Pt bond lengths. Both Pt–Pd bond lengths are 2.71 Å. Pd4+ is bonded in a 9-coordinate geometry to nine Pt2- atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on CePd2Pt by Materials Project

CePtPd2 is Uranium Silicide-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Ce is bonded to four equivalent Pt and eight equivalent Pd atoms to form CePd8Pt4 cuboctahedra that share corners with twelve equivalent CePd8Pt4 cuboctahedra, edges with eight equivalent PtCe4Pd8 cuboctahedra, edges with sixteen equivalent PdCe4Pd4Pt4 cuboctahedra, faces with four equivalent PtCe4Pd8 cuboctahedra, faces with six equivalent CePd8Pt4 cuboctahedra, and faces with eight equivalent PdCe4Pd4Pt4 cuboctahedra. All Ce–Pt bond lengths are 2.95 Å. All Ce–Pd bond lengths are 2.95 Å. Pt is bonded to four equivalent Ce and eight equivalent Pd atoms to form PtCe4Pd8 cuboctahedra that share corners with twelve equivalent PtCe4Pd8 cuboctahedra, edges with eight equivalent CePd8Pt4 cuboctahedra, edges with sixteen equivalent PdCe4Pd4Pt4 cuboctahedra, faces with four equivalent CePd8Pt4 cuboctahedra, faces with six equivalent PtCe4Pd8 cuboctahedra, and faces with eight equivalent PdCe4Pd4Pt4 cuboctahedra. All Pt–Pd bond lengths are 2.95 Å. Pd is bonded to four equivalent Ce, four equivalent Pt, and four equivalent Pd atoms to form distorted PdCe4Pd4Pt4 cuboctahedra that share corners with twelve equivalent PdCe4Pd4Pt4 cuboctahedra, edges with eight equivalent CePd8Pt4 cuboctahedra, edges with eight equivalent PtCe4Pd8 cuboctahedra, edges with eight equivalent PdCe4Pd4Pt4 cuboctahedra, faces with four equivalent CePd8Pt4 cuboctahedra, faces with four equivalent PtCe4Pd8 cuboctahedra, and faces with ten equivalent PdCe4Pd4Pt4 cuboctahedra. All Pd–Pd bond lengths are 2.95 Å.

36 MATERIALS SCIENCE↗