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Title: Catalyst support of mixed cerium zirconium titanium oxide, including use and method of making

Abstract

A durable catalyst support/catalyst is capable of extended water gas shift operation under conditions of high temperature, pressure, and sulfur levels. The support is a homogeneous, nanocrystalline, mixed metal oxide of at least three metals, the first being cerium, the second being Zr, and/or Hf, and the third importantly being Ti, the three metals comprising at least 80% of the metal constituents of the mixed metal oxide and the Ti being present in a range of 5% to 45% by metals-only atomic percent of the mixed metal oxide. The mixed metal oxide has an average crystallite size less than 6 nm and forms a skeletal structure with pores whose diameters are in the range of 4-9 nm and normally greater than the average crystallite size. The surface area of the skeletal structure per volume of the material of the structure is greater than about 240 m.sup.2/cm.sup.3. The method of making and use are also described.

Inventors:
 [1];  [2];  [1];  [3];  [2];  [4]
  1. Manchester, CT
  2. Glastonbury, CT
  3. Vernon, CT
  4. Broad Brook, CT
Issue Date:
Research Org.:
UTC Power Corporation (South Windsor, CT)
Sponsoring Org.:
USDOE
OSTI Identifier:
1013050
Patent Number(s):
7871957
Application Number:
11/803,481
Assignee:
UTC Power Corporation (South Windsor, CT)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
FC26-05NT42453
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Willigan, Rhonda R, Vanderspurt, Thomas Henry, Tulyani, Sonia, Radhakrishnan, Rakesh, Opalka, Susanne Marie, and Emerson, Sean C. Catalyst support of mixed cerium zirconium titanium oxide, including use and method of making. United States: N. p., 2011. Web.
Willigan, Rhonda R, Vanderspurt, Thomas Henry, Tulyani, Sonia, Radhakrishnan, Rakesh, Opalka, Susanne Marie, & Emerson, Sean C. Catalyst support of mixed cerium zirconium titanium oxide, including use and method of making. United States.
Willigan, Rhonda R, Vanderspurt, Thomas Henry, Tulyani, Sonia, Radhakrishnan, Rakesh, Opalka, Susanne Marie, and Emerson, Sean C. Tue . "Catalyst support of mixed cerium zirconium titanium oxide, including use and method of making". United States. https://www.osti.gov/servlets/purl/1013050.
@article{osti_1013050,
title = {Catalyst support of mixed cerium zirconium titanium oxide, including use and method of making},
author = {Willigan, Rhonda R and Vanderspurt, Thomas Henry and Tulyani, Sonia and Radhakrishnan, Rakesh and Opalka, Susanne Marie and Emerson, Sean C},
abstractNote = {A durable catalyst support/catalyst is capable of extended water gas shift operation under conditions of high temperature, pressure, and sulfur levels. The support is a homogeneous, nanocrystalline, mixed metal oxide of at least three metals, the first being cerium, the second being Zr, and/or Hf, and the third importantly being Ti, the three metals comprising at least 80% of the metal constituents of the mixed metal oxide and the Ti being present in a range of 5% to 45% by metals-only atomic percent of the mixed metal oxide. The mixed metal oxide has an average crystallite size less than 6 nm and forms a skeletal structure with pores whose diameters are in the range of 4-9 nm and normally greater than the average crystallite size. The surface area of the skeletal structure per volume of the material of the structure is greater than about 240 m.sup.2/cm.sup.3. The method of making and use are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {1}
}

Patent:

Works referenced in this record:

Diffusionless Tetragonal-Cubic Transformation Temperature in Zirconia-Ceria Solid Solutions
journal, November 1993


Reactant-Promoted Reaction Mechanism for Water-Gas Shift Reaction on Rh-Doped CeO2
journal, May 1993


Marked addition effect of Re upon the water gas shift reaction over TiO2 supported Pt, Pd and Ir catalysts
journal, February 2006


Structural characterization and mixed conductivity of TiO2-doped ceria stabilized tetragonal zirconia
journal, January 2002


Studies of the water-gas-shift reaction on ceria-supported Pt, Pd, and Rh: Implications for oxygen-storage properties
journal, January 1998


Coprecipitation and Hydrothermal Synthesis of Ultrafine 5.5 mol% CeO2-2 mol% YO1.5ZrO2 Powders
journal, January 1997


Catalytic oxidation of methane over CeO2-ZrO2 mixed oxide solid solution catalysts prepared via urea hydrolysis
journal, August 2002