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Versatile oxygen sorbents and devices

  • US 20040127358A1
  • Filed: 06/25/2003
  • Published: 07/01/2004
  • Est. Priority Date: 06/25/2002
  • Status: Abandoned Application
First Claim
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1. A regenerable sorbent for removing trace amounts of oxygen from either a gas-stream or a closed system, the sorbent comprises:

  • a mixed-oxide material composed by weight of about 1% to about 99% Ce2O3, about 0% to about 99% ZrO2, and 0% to about 25% RxOy, wherein RxOy is another metal oxide, and x and y are integers; and

    at least one of the following transition metals;

    Fe, Co, Ni, Cu, Ru, Pd, Rh, Pt, Ir, Os, or their oxides or mixtures thereof in catalytic amount of 0% to about 10%, on a surface of said mixed oxide material.

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