Diesel soot combustion catalysts: review of active phases

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Título: Diesel soot combustion catalysts: review of active phases
Autor/es: Hernández Giménez, Ana M. | Lozano Castelló, Dolores | Bueno López, Agustín
Grupo/s de investigación o GITE: Materiales Carbonosos y Medio Ambiente
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Palabras clave: Diesel soot | DPF | DOC | Soot combustion catalyst | Pt catalyst | Ceria | Perovskite
Área/s de conocimiento: Química Inorgánica
Fecha de publicación: sep-2014
Editor: Versita
Cita bibliográfica: Chemical Papers. 2014, 68(9): 1154-1168. doi:10.2478/s11696-013-0469-7
Resumen: The most relevant information about the different active phases that have been studied for the catalytic combustion of soot is reviewed and discussed in this article. Many catalysts have been reported to accelerate soot combustion, including formulations with noble metals, alkaline metals and alkaline earth metals, transition metals that can accomplish redox cycles (V, Mn, Co, Cu, Fe, etc.), and internal transition metals. Platinum catalysts are among those of most interest for practical applications, and an important feature of these catalysts is that sulphur-resistant platinum formulations have been prepared. Some metal oxide-based catalysts also appear to be promising candidates for soot combustion in practical applications, including ceria-based formulations and mixed oxides with perovskite and spinel structures. Some of these metal oxide catalysts produce highly reactive active oxygen species that promote efficient soot combustion. Thermal stability is an important requirement for a soot combustion catalyst, which precludes the practical utilisation of several potential catalysts such as most alkaline metal catalysts, molten salts, and metal chlorides. Some noble metal catalysts are also unstable due to the formation of volatile oxides (ruthenium, iridium, and osmium).
Patrocinador/es: The authors are grateful for the financial support received from Generalitat Valenciana (Project Prometeo 2009/047), the Spanish Ministry of Economy and Competitiveness (Project no. CTQ2012-30703), and the EU (FEDER).
URI: http://hdl.handle.net/10045/44749
ISSN: 0366-6352 (Print) | 1336-9075 (Online)
DOI: 10.2478/s11696-013-0469-7
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2013 Institute of Chemistry, Slovak Academy of Sciences. The final publication is available at Springer via http://dx.doi.org/10.2478/s11696-013-0469-7
Revisión científica: si
Versión del editor: http://dx.doi.org/10.2478/s11696-013-0469-7
Aparece en las colecciones:INV - MCMA - Artículos de Revistas

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