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The Issue of Solid-Solid Contact in Catalytic Soot Oxidation and the Benefits of Catalyst Nanostructuring to Regeneration of Catalytic Diesel Particulate Filters

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Nanostructured Catalysts for Environmental Applications

Abstract

Catalytic (i.e., catalyst-coated) diesel particulate filters (DPFs) represent the best option for removing particulate matter, which is mostly composed of soot, from diesel engine exhaust. In this chapter, the main critical issue for regeneration of catalytic DPFs, i.e., the contact in the solid-solid reaction between soot and catalyst, is addressed ranging from powdered soot-catalyst mixtures to real catalytic filter. The main factors affecting the soot-catalyst contact are discussed in the light of the most important literature results, with a particular emphasis on nanostructured catalysts. The improvement in catalytic properties at the soot-catalyst interface occurring at the nanoscale is analyzed. Challenges to be addressed in the near future are also highlighted.

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Authors and Affiliations

  1. Istituto di Scienze e Tecnologie per l’Energia e la Mobilità Sostenibili (STEMS), Consiglio Nazionale delle Ricerche (CNR), Naples, Italy

    Gianluca Landi, Valeria Di Sarli & Luciana Lisi

  2. Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, Naples, Italy

    Almerinda Di Benedetto

Authors
  1. Gianluca Landi
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  2. Valeria Di Sarli
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  3. Almerinda Di Benedetto
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  4. Luciana Lisi
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Corresponding author

Correspondence to Valeria Di Sarli .

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Editors and Affiliations

  1. Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy

    Marco Piumetti

  2. Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy

    Samir Bensaid

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Landi, G., Di Sarli, V., Di Benedetto, A., Lisi, L. (2021). The Issue of Solid-Solid Contact in Catalytic Soot Oxidation and the Benefits of Catalyst Nanostructuring to Regeneration of Catalytic Diesel Particulate Filters. In: Piumetti, M., Bensaid, S. (eds) Nanostructured Catalysts for Environmental Applications. Springer, Cham. https://doi.org/10.1007/978-3-030-58934-9_6

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