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AssigneeUniversity of Maryland, College Park
InventorsSheryl Heather Ehrman, Ranjan Kumar Pati, Osifo Akhuemonkhan
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The invention relates to compositions and composite particles that may be employed as anode materials for Solid Oxide Fuel Cells (SOFCs). The invention particularly relates to novel metallic SOFC anode materials, which preferably comprise metallic nickel (Ni), copper (Cu), especially if the Ni/Cu oxide has been stabilized with yttrium (Y) oxide (e.g., Y2O3) and/or zirconium (Zr) oxide (e.g., ZrO2) composition(s) (“YSZ”). Such compositions may additionally comprise a cerium (Ce) oxide (such as CeO2) (e.g., Ni/YSZ/CeO2). The invention particularly concerns such compositions and particles produced through the use of direct deposition or Flame Spray Pyrolysis so as to provide a controlled morphology and chemical composition.
A solid oxide fuel cell anode material, comprising a catalytically active metallic/YSZ, composite, said composite containing a substantially uniform metallic/YSZ powder composed of particles having a diameter of between 5 and 15 nm, wherein said metal of said composite and powder consists essentially of a first metal species component, said first metal species component consisting essentially of a single metal species or oxide thereof, said single metal species being either Ni or Cu, and optionally, one or more second metal species or oxide thereof, wherein when said first metal species is Ni, said second metal species is Mn or Ce, and when said first metal species is Cu, said second metal species is Mn, Fe, Co, or Ce.
A solid oxide fuel cell anode material, wherein said material comprises a catalytically active metallic/YSZ composite that is produced through a process which comprises:
A process for producing a solid oxide fuel cell anode material, wherein said material comprises a catalytically active metallic/YSZ composite, wherein said process comprises:
Dependencies are inferred from the claim text.