Composition based on oxides of cerium, of zirconium and of another rare earth metal with high reducibility, preparation process and use in the field of catalysis

Composition based on oxides of cerium, of zirconium and of another rare earth metal with high reducibility, preparation process and use in the field of catalysis

  • CN 103,619,758 A
  • Filed: 06/13/2012
  • Published: 03/05/2014
  • Est. Priority Date: 06/17/2011
  • Status: Active Application
First Claim
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1. the composition of the oxide compound based on cerium, zirconium and at least one rare earth metal except cerium, wherein cerium oxide content is for being greater than by mass 50%, it is characterized in that, after calcining 4 hours at 1000 ℃

  • , the specific surface area that said composition has is 20m at least 2/ g and between 200 ℃

    to 400 ℃

    movably the amount of oxygen be 0.8ml O at least 2/ g.

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