Catalytic Diesel and Gasoline Particulate Filters
A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".
Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 30992
Special Issue Editor
Interests: catalytic gasoline particulate filters; catalytic diesel particulate filters; design of novel catalytic and hybrid (homogeneous-heterogeneous) micro-combustors; explosions
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Special Issue Information
Dear Colleagues,
As is known, catalytic (i.e., catalyst-coated) particulate filters are the best option for removing particulate matter, which is mostly composed of soot, from both diesel and gasoline (direct injection) engine exhausts. Soot particles are trapped in the filter via filtration, and then eliminated via oxidation, i.e., filter regeneration. The catalytic coating of the filter walls allows to achieve soot oxidation at temperatures lower than those required by the thermal regeneration of the uncoated filter, and/or to shorten the regeneration time period, thus saving energy. In addition, in the presence of a catalyst, it is possible to increase the selectivity to CO2, and also to avoid uncontrolled soot combustion that can lead to the formation of excessively hot regions, causing irreversible damage to the filter.
Although diesel particulate filters (DPFs) and gasoline particulate filters (GPFs) have the same design, there are substantial differences between diesel and gasoline soot in terms of morphology, composition, and reactivity. In addition, the conditions for soot oxidation (in terms of soot load, temperature, oxygen concentration, presence/absence of NOx, etc.) strongly differ between DPFs and GPFs. These differences make soot oxidation catalysts developed for DPFs unsuitable for GPFs, and vice versa. In addition, they significantly affect both processes of filtration and regeneration.
This Special Issue aims at exploring recent advances and open issues in the field of catalytic DPFs and GPFs. A special emphasis will be placed on the synthesis and characterization of novel catalysts for soot oxidation under DPF and GPF conditions. However, all fundamental and applicative challenges related to the trapping of soot particles and their oxidation in the catalytic filter will also be highlighted. Authors with expertise in these topics are cordially invited to submit their manuscripts to this Special Issue of the journal Catalysts. Significant original papers and review articles, from both academia and industry, are welcome. Manuscripts addressing comparative diesel-gasoline aspects are particularly appreciated.Dr. Valeria Di Sarli
Guest Editor
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