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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Roles of Cu + and Cu 0 sites in liquid-phase hydrogenation of esters on core-shell CuZn x @C catalysts

Liquid-phase hydrogenolytic reduction of esters on Cu-based catalysts is a promising approach for synthesis of alcohols. Here, in this work, core-shell CuZn x @C materials synthesized via pyrolysis of a Zn(NO 3 ) 2 -loaded metal-organic framework (MOF) were proposed, in which well-defined spacing between Cu species in the parent MOF and the homogeneous loading of a Zn salt leads to an ideal distribution and strong interaction of Cu and Zn after pyrolysis of the precursor. The as-synthesized CuZn x @C showed a much higher catalytic activity than Cu@C. This higher activity is tentatively attributed to the simultaneous presence of Cu 0 and Cu + sites at ZnO crystal domains. The resulting Cu-O-Zn sites have a high tendency to adsorb the ester in the form of a surface bound species that greatly improves the hydrogenolysis, which is the rate controlling step in the reductive pathway. A theoretical study confirms the ability of this site to bind and catalytically convert fatty acid esters.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2020

Materials Data on Zn(CuO2)2 by Materials Project

Zn(CuO2)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded in a square co-planar geometry to four O2- atoms. All Cu–O bond lengths are 1.86 Å. In the second Cu3+ site, Cu3+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.85 Å) and two longer (1.87 Å) Cu–O bond length. Zn2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Zn–O bond distances ranging from 2.16–2.44 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu2 tetrahedra. In the second O2- site, O2- is bonded to two Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu2 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnCu2O3 by Materials Project

Cu2ZnO3 crystallizes in the orthorhombic Pmmn space group. The structure is three-dimensional. Cu2+ is bonded in a square co-planar geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.93–1.98 Å. Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.07–2.60 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Cu2+ and two equivalent Zn2+ atoms to form distorted corner-sharing OZn2Cu2 tetrahedra. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Cu2+ and two equivalent Zn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnCuO2 by Materials Project

CuZnO2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.90–2.08 Å. In the second Cu2+ site, Cu2+ is bonded to five O2- atoms to form distorted CuO5 trigonal bipyramids that share corners with four ZnO4 tetrahedra, corners with two equivalent ZnO5 trigonal bipyramids, an edgeedge with one ZnO4 tetrahedra, edges with two equivalent CuO5 trigonal bipyramids, and a faceface with one ZnO5 trigonal bipyramid. There are a spread of Cu–O bond distances ranging from 2.01–2.19 Å. In the third Cu2+ site, Cu2+ is bonded to five O2- atoms to form distorted CuO5 trigonal bipyramids that share corners with four ZnO4 tetrahedra, corners with two equivalent ZnO5 trigonal bipyramids, an edgeedge with one ZnO4 tetrahedra, edges with two equivalent CuO5 trigonal bipyramids, and a faceface with one ZnO5 trigonal bipyramid. There are a spread of Cu–O bond distances ranging from 2.00–2.18 Å. In the fourth Cu2+ site, Cu2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There is two shorter (1.90 Å) and two longer (2.08 Å) Cu–O bond length. There are four inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to five O2- atoms to form ZnO5 trigonal bipyramids that share corners with four ZnO4 tetrahedra, corners with two equivalent CuO5 trigonal bipyramids, edges with two equivalent ZnO5 trigonal bipyramids, and a faceface with one CuO5 trigonal bipyramid. There are a spread of Zn–O bond distances ranging from 2.04–2.11 Å. In the second Zn2+ site, Zn2+ is bonded to five O2- atoms to form ZnO5 trigonal bipyramids that share corners with four ZnO4 tetrahedra, corners with two equivalent CuO5 trigonal bipyramids, edges with two equivalent ZnO5 trigonal bipyramids, and a faceface with one CuO5 trigonal bipyramid. There are a spread of Zn–O bond distances ranging from 2.04–2.11 Å. In the third Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with two equivalent ZnO4 tetrahedra, corners with four CuO5 trigonal bipyramids, corners with four ZnO5 trigonal bipyramids, and an edgeedge with one CuO5 trigonal bipyramid. There is one shorter (1.97 Å) and three longer (2.00 Å) Zn–O bond length. In the fourth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with two equivalent ZnO4 tetrahedra, corners with four CuO5 trigonal bipyramids, corners with four ZnO5 trigonal bipyramids, and an edgeedge with one CuO5 trigonal bipyramid. There is one shorter (1.97 Å) and three longer (2.00 Å) Zn–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded to three Cu2+ and one Zn2+ atom to form distorted OZnCu3 tetrahedra that share corners with two equivalent OZnCu3 tetrahedra, corners with four OZn3Cu2 trigonal bipyramids, and an edgeedge with one OZn3Cu2 trigonal bipyramid. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Cu2+ and two equivalent Zn2+ atoms. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Cu2+ and two equivalent Zn2+ atoms. In the fourth O2- site, O2- is bonded to three Cu2+ and one Zn2+ atom to form distorted OZnCu3 tetrahedra that share corners with two equivalent OZnCu3 tetrahedra, corners with four OZn3Cu2 trigonal bipyramids, and an edgeedge with one OZn3Cu2 trigonal bipyramid. In the fifth O2- site, O2- is bonded to two equivalent Cu2+ and three Zn2+ atoms to form distorted OZn3Cu2 trigonal bipyramids that share corners with four OZnCu3 tetrahedra, an edgeedge with one OZnCu3 tetrahedra, and edges with two equivalent OZn3Cu2 trigonal bipyramids. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Cu2+ and three Zn2+ atoms. In the seventh O2- site, O2- is bonded to two equivalent Cu2+ and three Zn2+ atoms to form distorted OZn3Cu2 trigonal bipyramids that share corners with four OZnCu3 tetrahedra, an edgeedge with one OZnCu3 tetrahedra, and edges with two equivalent OZn3Cu2 trigonal bipyramids. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Cu2+ and three Zn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zn2Cu2O5 by Materials Project

Cu2Zn2O5 is Aluminum carbonitride-like structured and crystallizes in the orthorhombic Pmc2_1 space group. The structure is three-dimensional. there are two inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded to five O2- atoms to form corner-sharing CuO5 trigonal bipyramids. There are a spread of Cu–O bond distances ranging from 1.85–2.03 Å. In the second Cu3+ site, Cu3+ is bonded to five O2- atoms to form distorted corner-sharing CuO5 trigonal bipyramids. There are a spread of Cu–O bond distances ranging from 1.85–2.03 Å. There are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.06–2.41 Å. In the second Zn2+ site, Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.06–2.41 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to two Cu3+ and four Zn2+ atoms to form distorted OZn4Cu2 octahedra that share corners with eight OZn2Cu2 tetrahedra, corners with four OZn2Cu2 trigonal pyramids, edges with two equivalent OZn4Cu2 octahedra, edges with two OZn2Cu2 tetrahedra, and edges with four OZn2Cu2 trigonal pyramids. In the second O2- site, O2- is bonded to two Cu3+ and two equivalent Zn2+ atoms to form OZn2Cu2 tetrahedra that share corners with four equivalent OZn4Cu2 octahedra, corners with four OZn2Cu2 tetrahedra, corners with four equivalent OZn2Cu2 trigonal pyramids, an edgeedge with one OZn4Cu2 octahedra, and edges with two equivalent OZn2Cu2 trigonal pyramids. The corner-sharing octahedra tilt angles range from 18–61°. In the third O2- site, O2- is bonded to two Cu3+ and two equivalent Zn2+ atoms to form OZn2Cu2 tetrahedra that share corners with four equivalent OZn4Cu2 octahedra, corners with four OZn2Cu2 tetrahedra, corners with four equivalent OZn2Cu2 trigonal pyramids, an edgeedge with one OZn4Cu2 octahedra, and edges with two equivalent OZn2Cu2 trigonal pyramids. The corner-sharing octahedra tilt angles range from 18–61°. In the fourth O2- site, O2- is bonded to two equivalent Cu3+ and two Zn2+ atoms to form distorted OZn2Cu2 trigonal pyramids that share corners with two equivalent OZn4Cu2 octahedra, corners with four equivalent OZn2Cu2 tetrahedra, corners with two equivalent OZn2Cu2 trigonal pyramids, edges with two equivalent OZn4Cu2 octahedra, edges with two equivalent OZn2Cu2 tetrahedra, and an edgeedge with one OZn2Cu2 trigonal pyramid. The corner-sharing octahedral tilt angles are 58°. In the fifth O2- site, O2- is bonded to two equivalent Cu3+ and two Zn2+ atoms to form distorted OZn2Cu2 trigonal pyramids that share corners with two equivalent OZn4Cu2 octahedra, corners with four equivalent OZn2Cu2 tetrahedra, corners with two equivalent OZn2Cu2 trigonal pyramids, edges with two equivalent OZn4Cu2 octahedra, edges with two equivalent OZn2Cu2 tetrahedra, and an edgeedge with one OZn2Cu2 trigonal pyramid. The corner-sharing octahedral tilt angles are 58°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnCuO2 by Materials Project

CuZnO2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Cu–O bond distances ranging from 1.95–2.65 Å. In the second Cu2+ site, Cu2+ is bonded in a 4-coordinate geometry to five O2- atoms. There are a spread of Cu–O bond distances ranging from 1.92–2.68 Å. In the third Cu2+ site, Cu2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.95–2.07 Å. In the fourth Cu2+ site, Cu2+ is bonded to five O2- atoms to form distorted CuO5 trigonal bipyramids that share corners with four ZnO5 trigonal bipyramids, an edgeedge with one ZnO5 trigonal bipyramid, and edges with two equivalent CuO5 trigonal bipyramids. There are a spread of Cu–O bond distances ranging from 1.94–2.58 Å. There are four inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to five O2- atoms to form ZnO5 trigonal bipyramids that share corners with two equivalent CuO5 trigonal bipyramids, an edgeedge with one CuO5 trigonal bipyramid, and edges with two equivalent ZnO5 trigonal bipyramids. There are a spread of Zn–O bond distances ranging from 1.99–2.21 Å. In the second Zn2+ site, Zn2+ is bonded to five O2- atoms to form ZnO5 trigonal bipyramids that share corners with two equivalent CuO5 trigonal bipyramids and edges with two equivalent ZnO5 trigonal bipyramids. There are a spread of Zn–O bond distances ranging from 1.98–2.24 Å. In the third Zn2+ site, Zn2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Zn–O bond distances ranging from 1.91–2.07 Å. In the fourth Zn2+ site, Zn2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Zn–O bond distances ranging from 1.91–2.06 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded to three Cu2+ and one Zn2+ atom to form distorted OZnCu3 tetrahedra that share corners with two equivalent OZnCu3 tetrahedra, corners with four OZn3Cu2 trigonal bipyramids, and an edgeedge with one OZn3Cu2 trigonal bipyramid. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three Cu2+ and two equivalent Zn2+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three Cu2+ and two equivalent Zn2+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to four Cu2+ and one Zn2+ atom. In the fifth O2- site, O2- is bonded to two equivalent Cu2+ and three Zn2+ atoms to form distorted OZn3Cu2 trigonal bipyramids that share corners with three OZnCu3 tetrahedra and edges with two equivalent OZn3Cu2 trigonal bipyramids. In the sixth O2- site, O2- is bonded to one Cu2+ and three Zn2+ atoms to form distorted OZn3Cu tetrahedra that share corners with two equivalent OZn3Cu tetrahedra, corners with three OZn3Cu2 trigonal bipyramids, and an edgeedge with one OZn3Cu2 trigonal bipyramid. In the seventh O2- site, O2- is bonded to two equivalent Cu2+ and three Zn2+ atoms to form distorted OZn3Cu2 trigonal bipyramids that share corners with four OZnCu3 tetrahedra, edges with two OZnCu3 tetrahedra, and edges with two equivalent OZn3Cu2 trigonal bipyramids. In the eighth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Cu2+ and three Zn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zn(CuO2)2 by Materials Project

Zn(CuO2)2 is Spinel structured and crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Cu3+ is bonded to six equivalent O2- atoms to form CuO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six equivalent CuO6 octahedra. There are four shorter (2.01 Å) and two longer (2.02 Å) Cu–O bond lengths. Zn2+ is bonded to four equivalent O2- atoms to form ZnO4 tetrahedra that share corners with twelve equivalent CuO6 octahedra. The corner-sharing octahedral tilt angles are 58°. All Zn–O bond lengths are 1.97 Å. O2- is bonded to three equivalent Cu3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnCu3 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zn(CuO2)2 by Materials Project

Zn(CuO2)2 is Spinel-like structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are twelve inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three CuO4 tetrahedra, corners with three ZnO4 tetrahedra, edges with two equivalent ZnO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.96–2.09 Å. In the second Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three equivalent CuO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.96–2.07 Å. In the third Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with six CuO6 octahedra and corners with six ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 55–60°. There are a spread of Cu–O bond distances ranging from 1.92–1.94 Å. In the fourth Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with two equivalent ZnO4 tetrahedra, corners with four CuO4 tetrahedra, edges with three CuO6 octahedra, and edges with three ZnO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.93–2.03 Å. In the fifth Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine CuO6 octahedra. The corner-sharing octahedra tilt angles range from 55–63°. There are a spread of Cu–O bond distances ranging from 1.88–1.97 Å. In the sixth Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with six CuO6 octahedra and corners with six ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 55–60°. There are a spread of Cu–O bond distances ranging from 1.89–1.93 Å. In the seventh Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six CuO4 tetrahedra, edges with two equivalent CuO6 octahedra, and edges with four ZnO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.93–2.04 Å. In the eighth Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with six CuO6 octahedra and corners with six ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 54–60°. There are a spread of Cu–O bond distances ranging from 1.90–1.94 Å. In the ninth Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share a cornercorner with one ZnO4 tetrahedra, corners with five CuO4 tetrahedra, edges with three CuO6 octahedra, and edges with three ZnO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.94–2.09 Å. In the tenth Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with six CuO6 octahedra and corners with six ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 56–61°. There are a spread of Cu–O bond distances ranging from 1.92–1.97 Å. In the eleventh Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three equivalent CuO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.96–2.05 Å. In the twelfth Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine CuO6 octahedra. The corner-sharing octahedra tilt angles range from 54–63°. There are a spread of Cu–O bond distances ranging from 1.89–1.99 Å. There are eight inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine CuO6 octahedra. The corner-sharing octahedra tilt angles range from 56–61°. There is one shorter (1.97 Å) and three longer (1.98 Å) Zn–O bond length. In the second Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with three CuO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with six CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.07–2.11 Å. In the third Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine CuO6 octahedra. The corner-sharing octahedra tilt angles range from 57–61°. There is three shorter (1.99 Å) and one longer (2.00 Å) Zn–O bond length. In the fourth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with two equivalent ZnO4 tetrahedra, corners with four CuO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.06–2.12 Å. In the fifth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with six CuO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four equivalent CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.06–2.11 Å. In the sixth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with six CuO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.06–2.14 Å. In the seventh Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share a cornercorner with one ZnO4 tetrahedra, corners with five CuO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.07–2.11 Å. In the eighth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with six CuO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.07–2.12 Å. There are twenty-four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Cu3+ and two Zn2+ atoms. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the fourth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to four Cu3+ atoms. In the fifth O2- site, O2- is bonded to two Cu3+ and two Zn2+ atoms to form a mixture of distorted corner and edge-sharing OZn2Cu2 trigonal pyramids. In the sixth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the seventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the eighth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the ninth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the tenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the eleventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the twelfth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the thirteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the fourteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the fifteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the sixteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the seventeenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the eighteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to two equivalent Cu3+ and two Zn2+ atoms. In the twentieth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the twenty-first O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the twenty-second O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Cu3+ atoms. In the twenty-third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the twenty-fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zn(CuO2)2 by Materials Project

Zn(CuO2)2 is Spinel-like structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are nine inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with two equivalent ZnO4 tetrahedra, corners with four CuO4 tetrahedra, edges with three CuO6 octahedra, and edges with three ZnO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.92–2.03 Å. In the second Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with six CuO6 octahedra and corners with six ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 55–60°. There is two shorter (1.92 Å) and two longer (1.93 Å) Cu–O bond length. In the third Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three equivalent CuO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.96–2.04 Å. In the fourth Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six CuO4 tetrahedra, edges with two equivalent CuO6 octahedra, and edges with four ZnO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.93–2.03 Å. In the fifth Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with six CuO6 octahedra and corners with six ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 54–59°. There are a spread of Cu–O bond distances ranging from 1.89–1.92 Å. In the sixth Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share a cornercorner with one ZnO4 tetrahedra, corners with five CuO4 tetrahedra, edges with three CuO6 octahedra, and edges with three ZnO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.94–2.08 Å. In the seventh Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with six CuO6 octahedra and corners with six ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 54–60°. There is two shorter (1.91 Å) and two longer (1.94 Å) Cu–O bond length. In the eighth Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with six CuO6 octahedra and corners with six ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 55–61°. There are a spread of Cu–O bond distances ranging from 1.92–1.96 Å. In the ninth Cu3+ site, Cu3+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine CuO6 octahedra. The corner-sharing octahedra tilt angles range from 55–63°. There are a spread of Cu–O bond distances ranging from 1.89–1.97 Å. There are six inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine CuO6 octahedra. The corner-sharing octahedra tilt angles range from 57–61°. There is two shorter (1.98 Å) and two longer (1.99 Å) Zn–O bond length. In the second Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with six CuO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.06–2.13 Å. In the third Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with two equivalent ZnO4 tetrahedra, corners with four CuO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.06–2.11 Å. In the fourth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with six CuO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.06–2.11 Å. In the fifth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with six CuO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four equivalent CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.06–2.10 Å. In the sixth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share a cornercorner with one ZnO4 tetrahedra, corners with five CuO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five CuO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.07–2.11 Å. There are eighteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the fifth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the sixth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the seventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the eighth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the ninth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the tenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the eleventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the twelfth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Cu3+ and two Zn2+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Cu3+ and two Zn2+ atoms. In the fourteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the fifteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the sixteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to four Cu3+ atoms. In the seventeenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the eighteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zn(CuO2)2 by Materials Project

Zn(CuO2)2 is Spinel structured and crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are four inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six CuO6 octahedra. There are four shorter (1.99 Å) and two longer (2.04 Å) Cu–O bond lengths. In the second Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six CuO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.97–2.03 Å. In the third Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six CuO6 octahedra. There are a spread of Cu–O bond distances ranging from 1.95–2.09 Å. In the fourth Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six CuO6 octahedra. There are two shorter (2.00 Å) and four longer (2.02 Å) Cu–O bond lengths. Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve CuO6 octahedra. The corner-sharing octahedra tilt angles range from 56–60°. There is three shorter (1.98 Å) and one longer (1.99 Å) Zn–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to three Cu3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnCu3 trigonal pyramids. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Cu3+ and one Zn2+ atom. In the fourth O2- site, O2- is bonded to three Cu3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnCu3 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zn(CuO2)2 by Materials Project

Zn(CuO2)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 49–62°. There are a spread of Cu–O bond distances ranging from 1.94–2.06 Å. In the second Cu3+ site, Cu3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 48–61°. There are a spread of Cu–O bond distances ranging from 1.93–2.09 Å. In the third Cu3+ site, Cu3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 48–62°. There are a spread of Cu–O bond distances ranging from 1.94–2.07 Å. In the fourth Cu3+ site, Cu3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 49–61°. There are a spread of Cu–O bond distances ranging from 1.95–2.07 Å. In the fifth Cu3+ site, Cu3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 49–62°. There are a spread of Cu–O bond distances ranging from 1.90–2.13 Å. In the sixth Cu3+ site, Cu3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 49–61°. There are a spread of Cu–O bond distances ranging from 1.90–2.11 Å. In the seventh Cu3+ site, Cu3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 48–62°. There are a spread of Cu–O bond distances ranging from 1.91–2.09 Å. In the eighth Cu3+ site, Cu3+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 48–61°. There are a spread of Cu–O bond distances ranging from 1.90–2.12 Å. There are four inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Zn–O bond distances ranging from 2.20–2.47 Å. In the second Zn2+ site, Zn2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Zn–O bond distances ranging from 2.20–2.49 Å. In the third Zn2+ site, Zn2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Zn–O bond distances ranging from 2.22–2.54 Å. In the fourth Zn2+ site, Zn2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Zn–O bond distances ranging from 2.21–2.48 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded to three Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu3 trigonal bipyramids. In the second O2- site, O2- is bonded to three Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu3 trigonal bipyramids. In the third O2- site, O2- is bonded to three Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu3 trigonal bipyramids. In the fourth O2- site, O2- is bonded to three Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu3 trigonal bipyramids. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to three Cu3+ and two Zn2+ atoms. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to three Cu3+ and two Zn2+ atoms. In the seventh O2- site, O2- is bonded in a 5-coordinate geometry to three Cu3+ and two Zn2+ atoms. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to three Cu3+ and two Zn2+ atoms. In the ninth O2- site, O2- is bonded to three Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu3 trigonal bipyramids. In the tenth O2- site, O2- is bonded to three Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu3 trigonal bipyramids. In the eleventh O2- site, O2- is bonded to three Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu3 trigonal bipyramids. In the twelfth O2- site, O2- is bonded to three Cu3+ and two equivalent Zn2+ atoms to form a mixture of distorted edge and corner-sharing OZn2Cu3 trigonal bipyramids. In the thirteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Cu3+ and two equivalent Zn2+ atoms. In the fourteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Cu3+ and two equivalent Zn2+ atoms. In the fifteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Cu3+ and two equivalent Zn2+ atoms. In the sixteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Cu3+ and two equivalent Zn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnCuO3 by Materials Project

CuZnO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Cu is bonded to six equivalent O atoms to form CuO6 octahedra that share corners with six equivalent CuO6 octahedra and faces with eight equivalent ZnO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Cu–O bond lengths are 1.87 Å. Zn is bonded to twelve equivalent O atoms to form distorted ZnO12 cuboctahedra that share corners with twelve equivalent ZnO12 cuboctahedra, faces with six equivalent ZnO12 cuboctahedra, and faces with eight equivalent CuO6 octahedra. All Zn–O bond lengths are 2.64 Å. O is bonded in a linear geometry to two equivalent Cu and four equivalent Zn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zn(CuO2)2 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗