Journal ArticleDOI
Automotive exhaust catalysis
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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
From highly dispersed Rh3+ to nanoclusters and nanoparticles: Probing the low-temperature NO+CO activity of Rh-doped CeO2 catalysts
Lidiya S. Kibis,Dmitry A. Svintsitskiy,Elizaveta A. Derevyannikova,Tatyana Yu. Kardash,Elena M. Slavinskaya,Olga A. Stonkus,Valery A. Svetlichnyi,Andrei I. Boronin +7 more
TL;DR: In this paper, the performance of Rh-doped CeO2 systems was studied as potential catalysts for low-temperature NO reduction by CO. Thermal and redox treatments allowed varying the Rh oxidation state and the size of rhodium particles formed on CeO 2 surface.
Journal ArticleDOI
Nanostructural Studies of Fresh and Road-Aged Practical Pt/SiO2 and Pt-Pd/Al2O3 Diesel Oxidation Catalysts by using Aberration-Corrected (Scanning) Transmission Electron Microscopy
TL;DR: In this article, the authors report direct observations of nanostructural and compositional evolution in complex technological diesel oxidation nanocatalysts (DOCs) by using aberrationcorrected (scanning) transmission electron microscopy (AC-(S)TEM) at the atomic level and nano-beam electron diffraction (NBED).
Journal ArticleDOI
Lean NOx reduction by CO at low temperature over bimetallic IrRu/Al2O3 catalysts with different Ir : Ru ratios
TL;DR: In this paper, the effect on the catalytic activity and physicochemical properties of IrRu/Al2O3 catalysts caused by introducing Ru onto Ir with different amounts is investigated.
Journal ArticleDOI
Mechanism of dopant distribution: An example of nickel-doped ceria nanoparticles
TL;DR: In this paper, the microstructure, geometry and accurate distribution of dopants in nickel-doped ceria nanoparticles prepared by spray pyrolysis were characterized and it was suggested that the dopant distribution is mainly controlled by the difference in the diffusion rates of the precursors from the centre to the surface of the particle.
Journal ArticleDOI
Oxidation of Small Supported Platinum-based Nanoparticles Under Near-Ambient Pressure Exposure to Oxygen
Ahmed Naitabdi,Robert Fagiewicz,Anthony Boucly,Giorgia Olivieri,Fabrice Bournel,Heloise Tissot,Yawei Xu,Rabah Benbalagh,Mathieu G. Silly,Fausto Sirotti,Jean-Jacques Gallet,François Rochet +11 more
TL;DR: In this paper, small PtZn bimetallic nanoparticles (NPs) supported on the rutile and reduced TiO2(110)-(1 × 1) surface can be prepared by a two step consecutive deposition process where Pt was deposited first and followed by Zn.
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.