skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Mixed oxide solid solutions

Patent ·
OSTI ID:875058
 [1];  [2];  [3]
  1. Dublin, CA
  2. Fremont, CA
  3. Liverpool, GB
+ Show Author Affiliations

The present invention is a mixed oxide solid solution containing a tetravalent and a pentavalent cation that can be used as a support for a metal combustion catalyst. The invention is furthermore a combustion catalyst containing the mixed oxide solid solution and a method of making the mixed oxide solid solution. The tetravalent cation is zirconium(+4), hafnium(+4) or thorium(+4). In one embodiment, the pentavalent cation is tantalum(+5), niobium(+5) or bismuth(+5). Mixed oxide solid solutions of the present invention exhibit enhanced thermal stability, maintaining relatively high surface areas at high temperatures in the presence of water vapor.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
DOE Contract Number:
W-7405-ENG-48
Assignee:
Catalytica Energy Systems, Inc. (Mountain View, CA)
Patent Number(s):
US 6521566
OSTI ID:
875058
Country of Publication:
United States
Language:
English

References (6)

Preparation and properties of niobia- and tantala-doped orthorhombic zirconia journal January 1995
Compound and solid-solution formation, phase equilibria and electrical properties in the ceramic system ZrO 2 –La 2 O 3 –Ta 2 O 5 journal January 1991
Phases in the Zr x Ta 1 –x (O,N)y system, formed by ammonolysis of Zr–Ta gels: preparation of a baddeleyite-type solid solution phase Zr x Ta 1 –x O 1 +x N 1 –x , 0≤X≤1 journal January 1994
Zirconia as a support for catalysts Influence of additives on the thermal stability of the porous texture of monoclinic zirconia journal April 1991
Non-porous stabilized ZrO2 particles as support for catalysts journal January 1987
V2O5, Nb2O5 and Ta2O5 doped zirconia ceramics journal January 1994

Similar Records

SEPARATION OF THORIUM FROM RARE EARTHS, ZIRCONIUM, AND OTHER ELEMENTS BY CATION EXCHANGE CHROMATOGRAPHY
Journal Article · Wed Jul 01 00:00:00 EDT 1959 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. · OSTI ID:875058
METALLURGICAL PROGRESS REPORT NUMBER 14 FOR THE PERIOD OF JANUARY 1, 1962 TO MARCH 31, 1962
Technical Report · Wed Oct 31 00:00:00 EST 1962 · OSTI ID:875058
RECENT DEVELOPMENTS IN ANALYSIS WITH SPECIAL REFERENCE TO REACTOR RESEARCH
Technical Report · Sat Oct 31 00:00:00 EST 1959 · OSTI ID:875058
+2 more

Related Subjects

mixed
oxide
solid
solutions
solution
containing
tetravalent
pentavalent
cation
support
metal
combustion
catalyst
furthermore
method
zirconium4
hafnium4
thorium4
embodiment
tantalum5
niobium5
bismuth5
exhibit
enhanced
thermal
stability
maintaining
surface
temperatures
presence
water
vapor
water vapor
thermal stability
mixed oxide
/502/