Diesel Soot Catalysis

Dear Colleagues,

Among the different alternatives to mitigate the Particulate Matter emissions from diesel vehicles, the entrapment of particulates from exhaust gases by Diesel Particulate Filters (DPFs) has received much interest in recent years. However, the soot that forms diesel exhaust particulate can be burnt off at temperatures above 600 °C, whereas typical diesel engine exhaust temperatures fall within the 200–500 °C range. Therefore, oxidation catalysts are necessary to increase the oxidation rate of filter traps at low temperatures. Moreover, the feasibility of soot combustion depends to a great extent on the catalyst–soot contact conditions, and it is therefore necessary to maximize the interaction between the soot particles and the catalyst, both of which are solid materials. In recent years, many soot oxidation catalyst formulations have been investigated and the most promising catalytic technologies focus on stable materials that exhibit high mobility of the oxidizing species able to be effectively transferred to the soot surface under the operating conditions required for this demanding application.

The purpose of this Special Issue is to cover promising recent research and novel trends in the field of diesel soot oxidation catalysis. Welcome are studies addressing challenges in: (1) novel catalytic materials and catalysts designs (2) scientific understanding of reaction pathways and kinetics (3) strategies for catalytic coatings into DPFs and filter regeneration and (4) coated-DPF modelling and simulation approaches.

Prof. Dr. Avelina García-García
Guest Editor

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