Layered catalyst structures and methods of making the same
Abstract
A layered catalyst structure for purifying an exhaust gas stream includes a catalyst support and a palladium catalyst layer including an atomic dispersion of palladium ions electrostatically adsorbed onto an exterior surface of the catalyst support. The catalyst support includes an alumina substrate, a first ceria layer disposed on and extending substantially continuously over the alumina substrate, and a second colloidal ceria layer formed directly on the first ceria layer over the alumina substrate. The palladium catalyst layer is formed on the exterior surface of the catalyst support by applying a palladium-containing precursor solution to the exterior surface of the catalyst support and then heating the catalyst support and the palladium-containing precursor solution. The palladium-containing precursor solution includes a positively charged palladium complex in an aqueous medium and has a pH greater than a point of zero charge of the second colloidal ceria layer.
- Inventors:
- Issue Date:
- Research Org.:
- GM Global Technology Operations LLC, Detroit, MI (United States); Univ. of Central Florida, Orlando, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2293657
- Patent Number(s):
- 11772078
- Application Number:
- 17/581,447
- Assignee:
- GM Global Technology Operations LLC (Detroit, MI); University of Central Florida Research Foundation, Inc. (Orlando, FL)
- DOE Contract Number:
- EE0009196
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 01/21/2022
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Gu, Yuntao, Li, Wei, and Liu, Fudong. Layered catalyst structures and methods of making the same. United States: N. p., 2023.
Web.
Gu, Yuntao, Li, Wei, & Liu, Fudong. Layered catalyst structures and methods of making the same. United States.
Gu, Yuntao, Li, Wei, and Liu, Fudong. Tue .
"Layered catalyst structures and methods of making the same". United States. https://www.osti.gov/servlets/purl/2293657.
@article{osti_2293657,
title = {Layered catalyst structures and methods of making the same},
author = {Gu, Yuntao and Li, Wei and Liu, Fudong},
abstractNote = {A layered catalyst structure for purifying an exhaust gas stream includes a catalyst support and a palladium catalyst layer including an atomic dispersion of palladium ions electrostatically adsorbed onto an exterior surface of the catalyst support. The catalyst support includes an alumina substrate, a first ceria layer disposed on and extending substantially continuously over the alumina substrate, and a second colloidal ceria layer formed directly on the first ceria layer over the alumina substrate. The palladium catalyst layer is formed on the exterior surface of the catalyst support by applying a palladium-containing precursor solution to the exterior surface of the catalyst support and then heating the catalyst support and the palladium-containing precursor solution. The palladium-containing precursor solution includes a positively charged palladium complex in an aqueous medium and has a pH greater than a point of zero charge of the second colloidal ceria layer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 03 00:00:00 EDT 2023},
month = {Tue Oct 03 00:00:00 EDT 2023}
}
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Works referenced in this record:
Selective hydrogenation catalyst for a C3 hydrocarbon cut
patent, June 2020
- Boualleg, Malika; Avenier, Priscilla
- US Patent Document 10,695,748
Layered catalyst composite
patent, July 2004
- Deeba, Michel; Steger, John J.; Rabinowitz, Harold
- US Patent Document 6,764,665
Catalyst comprising palladium and silver, and its application for selective hydrogenation
patent, October 2018
- Cabiac, Amandine; Zozaya, Vincent; Chambard, Alexandre
- US Patent Document 10,099,205
High-capacity, low-temperature, passive NOx and cd adsorbers and methods for making same
patent, July 2021
- Khivantsev, Konstantin; Szanyi, Janos; Jaegers, Nicholas R.
- US Patent Document 11,071,966
NOx adsorber catalyst, methods and systems
patent, December 2019
- Grubert, Gerd; Neubauer, Torsten; Punke, Alfred H.
- US Patent Document 10,493,434
Aluminum-stabilized ceria catalyst compositions, and methods of making the same
patent, December 1987
- Wan, Chung-Zong; Dettling, Joseph C.
- US Patent Document 4,714,694
Catalytic articles, systems and methods for the oxidation of nitric oxide
patent, March 2014
- Li, Yuejin; Roth, Stanley A.
- US Patent Document 8,679,434
Catalyst compositions and methods of making the same
patent, February 1988
- Wan, Chung-Zong; Dettling, Joseph C.
- US Patent Document 4,727,052
Three-way catalysts of improved efficiency
patent, April 1988
- Wan, Chung-Zong; Dettling, Joseph C.
- US Patent Document 4,738,947
Catalyst materials
patent, October 2013
- Chen, Shau-Lin F.; Gramiccioni, Gary A.; Feng, Wiley
- US Patent Document 8,545,780
Method for preparing a selective hydrogenation catalyst
patent, March 2021
- Petit-Clair, Carine; Avenier, Priscilla; Martin, Michel
- US Patent Document 10,946,370
Catalyst for gasoline lean burn engines with improved NO oxidation activity
patent, January 2016
- Hilgendorff, Marcus
- US Patent Document 9,242,242
Catalyst composition for purifying exhaust gas
patent, December 2002
- Sung, Shiang
- US Patent Document 6,492,297
Catalyst, exhaust gas purifying catalyst, and method of producing the catalyst
patent, December 2011
- Yasuda, Hirofumi; Suga, Katsuo; Aoyama, Makoto
- US Patent Document 8,080,494
Achieving Atomic Dispersion of Highly Loaded Transition Metals in Small-Pore Zeolite SSZ-13: High-Capacity and High-Efficiency Low-Temperature CO and Passive NO x Adsorbers
journal, November 2018
- Khivantsev, Konstantin; Jaegers, Nicholas R.; Kovarik, Libor
- Angewandte Chemie International Edition, Vol. 57, Issue 51
Catalyst materials
patent, September 2014
- Gramiccioni, Gary A.; Siemund, Stephan; Chen, Shau-Lin F.
- US Patent Document 8,835,346
Catalyst materials for NO oxidation
patent, September 2015
- Hoke, Jeffrey B.; Gerlach, Olga; Sundermann, Andreas
- US Patent Document 9,138,725