Fabrication of Ca3Co4O9/MgO nanocomposite materials using pechini sol-gel method
AssigneeImam Mohammad Ibn Saud Islamic University
InventorEhab Abdelhamed Abdelrahman Ahmed
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Abstract
A multiphase particulate nanocomposite material including, determined by X-ray diffraction (XRD): a monoclinic calcium cobalt oxide (Ca3Co4O9) crystalline phase; and, a cubic magnesium oxide (MgO) crystalline phase. The multiphase nanocomposite material further inlcudes either: a hexagonal calcium carbonate (CaCO3) crystalline phase and a cubic cobalt oxide (Co3O4) crystalline phase; or, a cubic calcium oxide (CaO) crystalline phase and a rhombohedral Ca3Co2O6 crystalline phase. The ratio by weight of the monoclinic Ca3Co4O9 crystalline phase and the cubic MgO crystalline phase is in a range of about 0.5 to 1.5:0.5 to 1.5:0.5 to 1.5.
Claims20
A multiphase particulate nanocomposite material comprising, as determined by X-ray diffraction:
- a monoclinic Ca3Co4O9 crystalline phase;
- and,
- a cubic MgO crystalline phase,
- wherein the multiphase nanocomposite material further comprises either:
- a hexagonal CaCO3 crystalline phase and a cubic Co3O4 crystalline phase;
- or,
- a cubic CaO crystalline phase and a rhombohedral Ca3Co2O6 crystalline phase;
- and,
- wherein the ratio by weight of the monoclinic Ca3Co4O9 crystalline phase and the cubic MgO crystalline phase is in a range of about (0.5 to 1.5):(0.5 to 1.5).
Dependencies are inferred from the claim text.