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Oxidation catalyst

Patent ·
OSTI ID:1014926

The present invention generally relates to catalyst systems and methods for oxidation of carbon monoxide. The invention involves catalyst compositions which may be advantageously altered by, for example, modification of the catalyst surface to enhance catalyst performance. Catalyst systems of the present invention may be capable of performing the oxidation of carbon monoxide at relatively lower temperatures (e.g., 200 K and below) and at relatively higher reaction rates than known catalysts. Additionally, catalyst systems disclosed herein may be substantially lower in cost than current commercial catalysts. Such catalyst systems may be useful in, for example, catalytic converters, fuel cells, sensors, and the like.

Research Organization:
Massachusetts Institute of Technology (Cambridge, MA)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-89ER14035
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
Patent Number(s):
7,829,035
Application Number:
US Patent Application 11/335,865
OSTI ID:
1014926
Country of Publication:
United States
Language:
English

References (12)

Onset of Catalytic Activity of Gold Clusters on Titania with the Appearance of Nonmetallic Properties journal September 1998
Reaction of CO with Molecularly Chemisorbed Oxygen on TiO 2 -Supported Gold Nanoclusters journal October 2004
Modification of Ni(111) reactivity toward CH 4 , CO, and D 2 by two‐dimensional alloying journal May 1996
Atomic-Scale Determination of Misfit Dislocation Loops at Metal-Metal Interfaces journal July 1995
Spectroscopic Evidence for the Supply of Reactive Oxygen during CO Oxidation Catalyzed by Gold Supported on Nanocrystalline CeO 2 journal March 2005
The Structure of Catalytically Active Gold on Titania journal October 2004
Adsorbate-Induced Alloy Phase Separation: A Direct View by High-Pressure Scanning Tunneling Microscopy journal September 2005
Gold catalysts prepared by coprecipitation for low-temperature oxidation of hydrogen and of carbon monoxide journal February 1989
Catalysis by Supported Gold:  Correlation between Catalytic Activity for CO Oxidation and Oxidation States of Gold journal March 2004
Design of a Surface Alloy Catalyst for Steam Reforming journal March 1998
Oxidation of CO by molecular oxygen on a Ag() surface studied by scanning tunneling microscopy journal July 2002
Reactivity of Atomic Gold Anions toward Oxygen and the Oxidation of CO:  Experiment and Theory journal March 2004

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