The sections in this article are
Introduction
Origin of Emissions
Importance of Road Transport
Legislation
History
Present and Future
Measurement of Emissions
Passenger Cars and Light Duty Vehicles
Heavy Duty Trucks and Buses
Technology to Meet Legislation
Spark‐Ignition Engines
Compression‐Ignition Engines
Catalytic Systems for Gasoline‐Fueled, Indirect Injection Spark‐Ignition Engines
Introduction
Engine‐Out Emissions
Reactions
Emission Control Concepts
Aspects of Three‐Way Catalyst Design
General Aspects
Bead Catalysts
Ceramic Monolithic Substrates
Metallic Monolithic Substrates
Washcoat
Precious Metals
Aspects of Three‐Way Catalyst Performance
Introduction
Measurement of Catalyst Performance
Influence of Catalyst Operating Conditions
Influence of Substrate and Converter Design
Influence of Catalyst Formulation
Deactivation of Three‐Way Catalysts
Introduction
Assessment of Durability
Selected Deactivation Phenomena
Future Developments and Concepts
Catalytic Systems for Gasoline‐Fueled Direct Injection Spark‐Ignition Engines
Introduction
Aspects of Operation of
NO
x
‐Adsorber Systems
Aspects of Deactivation of
NO
x
‐Adsorber Systems
Catalytic Systems for Diesel‐Fueled Compression‐Ignition Engines
Introduction
Diesel Oxidation Catalysts
Aspects of Diesel Oxidation Catalyst Design
Aspects of Deactivation
Future Developments and Concepts
Catalytic Diesel Particulate Filter Systems
Aspects of Diesel Filter System Design
Aspects of Filter System Operation
Diesel
NO
x
‐Reduction Systems
Introduction
HC
‐
De
NO
x
‐Systems
Diesel
NO
x
‐adsorber systems
SCR
Systems
Future Developments and Concepts
Conclusions and Outlook
Acknowledgments
List of Abbreviations and Symbols