Exhaust treatment catalysts with enhanced hydrothermal stability and low-temperature activity
Abstract
A catalyst for treating fuel combustion exhaust, the catalyst comprising the following components: (i) an oxide support comprising silicon oxide, aluminum oxide, or combination of silicon and aluminum oxides; (ii) cerium oxide, zirconium oxide, or a combination of cerium and zirconium oxides in contact with said oxide support; and (iii) nanoparticles comprising elemental palladium or platinum in contact with at least component (ii), wherein said palladium or platinum is present in an amount of 0.1-4 wt. % by weight of the particles, and wherein surfaces of said nanoparticles of elemental palladium or palladium are exposed and accessible to said fuel combustion exhaust. Methods of producing and using the catalyst are also described.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1576237
- Patent Number(s):
- 10427137
- Application Number:
- 15/906,606
- Assignee:
- UT-Battelle, LLC (Oakridge, TN)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2018 Feb 27
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES
Citation Formats
Kyriakidou, Eleni, Toops, Todd J., Choi, Jae-Soon, Lance, Michael J., and Parks, II, James E. Exhaust treatment catalysts with enhanced hydrothermal stability and low-temperature activity. United States: N. p., 2019.
Web.
Kyriakidou, Eleni, Toops, Todd J., Choi, Jae-Soon, Lance, Michael J., & Parks, II, James E. Exhaust treatment catalysts with enhanced hydrothermal stability and low-temperature activity. United States.
Kyriakidou, Eleni, Toops, Todd J., Choi, Jae-Soon, Lance, Michael J., and Parks, II, James E. Tue .
"Exhaust treatment catalysts with enhanced hydrothermal stability and low-temperature activity". United States. https://www.osti.gov/servlets/purl/1576237.
@article{osti_1576237,
title = {Exhaust treatment catalysts with enhanced hydrothermal stability and low-temperature activity},
author = {Kyriakidou, Eleni and Toops, Todd J. and Choi, Jae-Soon and Lance, Michael J. and Parks, II, James E.},
abstractNote = {A catalyst for treating fuel combustion exhaust, the catalyst comprising the following components: (i) an oxide support comprising silicon oxide, aluminum oxide, or combination of silicon and aluminum oxides; (ii) cerium oxide, zirconium oxide, or a combination of cerium and zirconium oxides in contact with said oxide support; and (iii) nanoparticles comprising elemental palladium or platinum in contact with at least component (ii), wherein said palladium or platinum is present in an amount of 0.1-4 wt. % by weight of the particles, and wherein surfaces of said nanoparticles of elemental palladium or palladium are exposed and accessible to said fuel combustion exhaust. Methods of producing and using the catalyst are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}
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