Patents Assigned to Horizon Fuel Cells, LLC
  • Complex cobalt oxide catalysts for oxygen reduction electrodes in alkaline fuel cells
    Patent number: 7803348
    Abstract: Oxygen is reduced in the presence of a catalyst at the cathode of an alkaline-electrolyte fuel cell. Catalysts of the formula Sr3?xA1+xCo4?yByO10.5?z wherein ?0.6?x?1.0; 0?y?3; and ?1.5?z?0.5; wherein A represents Eu, Gd, Tb, Dy, Ho, or Y; and wherein B represents Fe, Ga, Cu, Ni, Mn, and Cr, demonstrate high catalytic activity and high chemical stability when used as the oxygen-reduction catalyst in alkaline fuel cells.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: September 28, 2010
    Assignee: Horizon Fuel Cells, LLC
    Inventors: Evgeny V. Antipov, Galina A. Tsirlina, Sergey Y. Istomin, Oleg A. Drozhzhin, Eduard E. Levin