Journal ArticleDOI
Automotive exhaust catalysis
TLDR
The general trend has been one of increasingly complex catalyst formulations in response to increasingly stringent emission standards as discussed by the authors, but with greater emphasis on optimizing catalyst formulations for lean-burn applications and reducing catalyst cost and complexity without sacrificing performance.About:
This article is published in Journal of Catalysis.The article was published on 2003-05-01. It has received 693 citations till now.read more
Citations
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Journal ArticleDOI
Deterioration of the oxygen storage and release properties of CeZrO4 by incorporation of calcium
TL;DR: In this paper, the authors investigated the deactivation of TWC by Ca on the surface of CeZrO4 mixed oxide by wet impregnation with a Ca nitrate solution to study the oxygen storage and release properties of the solids.
Journal ArticleDOI
Adsorption of CO on Surfaces of 4d and 5d Elements in Group VIII
TL;DR: In this paper, a density functional theory (DFT) calculation with the all electron relativistic core treatment method was used to determine adsorption of CO on close-packed surfaces of Ru, Rh, Pd, Os, Ir, and Pt.
Journal ArticleDOI
CO adsorption over Pd nanoparticles: A general framework for IR simulations on nanoparticles
Constantinos D. Zeinalipour-Yazdi,Constantinos D. Zeinalipour-Yazdi,David J. Willock,Liam Thomas,Karen Wilson,Adam F. Lee +5 more
TL;DR: In this article, a DFT-based analysis of the CO vibrational spectra over catalytic nanoparticles under high coverages/pressures is discussed from an infrared (IR) spectra perspective.
Journal ArticleDOI
Evaluation of the conversion efficiency of ceramic and metallic three way catalytic converters
H. Santos,Mário Costa +1 more
TL;DR: In this article, the influence of the substrate geometrical and physical parameters on the exhaust gas conversions for several vehicle operating conditions was evaluated using a 2.8l DOHC V6 spark ignition engine.
Journal ArticleDOI
Platinum sintering on H-ZSM-5 followed by chemometrics of CO adsorption and 2D pressure-jump IR spectroscopy of adsorbed species.
Mickaël Rivallan,Etienne Seguin,Sébastien Thomas,Muriel Lepage,Nobuyuki Takagi,Hirohito Hirata,Frédéric Thibault-Starzyk +6 more
TL;DR: CO chemisorption confirms the TEM observations that the Pt particles greatly sinter with around three times lower dispersion after air treatment, whereas the surface and pores of the zeolite matrix remain stable and encapsulation of Pt into plugged pores can be neglected.
References
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Book
Catalysis by Ceria and Related Materials
TL;DR: The use of ceria-based catalysts in automotive catalysts was discussed in this paper, where the authors showed that the properties and thermal stability of Ceria-zirconia and related materials can be characterized using surface analysis techniques.
Journal ArticleDOI
Rh-Loaded CeO2-ZrO2 Solid-Solutions as Highly Efficient Oxygen Exchangers: Dependence of the Reduction Behavior and the Oxygen Storage Capacity on the Structural-Properties
Paolo Fornasiero,R. Dimonte,Gangavarapu Ranga Rao,Jan Kašpar,S. Meriani,Alessandro Trovarelli,Mauro Graziani +6 more
TL;DR: In this paper, it is shown that incorporation of ZrO2 into a solid solution with CeO2 strongly promotes bulk reduction of the Rh-loaded solid solutions in comparison to a Rh/CeO2 sample.
Journal ArticleDOI
Nitric oxide catalysis in automotive exhaust systems
TL;DR: In this paper, a review of the literature on NO catalysis is presented, focusing on the threeway catalyst system which simultaneously promotes the reduction of nitrogen oxides and the oxidation of carbon monoxide and hydrocarbons.
Book
Catalytic Air Pollution Control: Commercial Technology
TL;DR: In this paper, the authors present an overview of the history of catalytic components in diesel engines and their application in a variety of applications, such as catalytic converter, catalytic converters, and catalytic monoliths.
Journal ArticleDOI
Twenty-five years after introduction of automotive catalysts: what next?
TL;DR: The union of catalysts and the automobile has been one of the greatest successes of heterogeneous catalysis over the last 25 years as mentioned in this paper, and there will be continued research and development activity focused also on downstream applications (i.e. exhaust emission aftertreatment), especially for fuelefficient, lean-burn vehicles, both diesel and spark-ignited.