A highly active Ca/Cu/YCeO2-TiOcatalyst for the transient reduction of NO with CO and naphthalene under oxidizing conditions

Luis Sánchez, Gonzalo Aguila, Paulo Araya, Sergio Quijada, Sichem Guerrero

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

The transient combustion of biomass leads to the evolution of a variety of pollutants (NO, CO, organic compounds, and many others) that can react with each other on a suitable catalyst to generate compounds of lower toxicity. Here, the transient reduction of NO with CO and naphthalene in the presence of oxygen was studied on a Ca/Cu/YCeO2-TiO2catalyst. Response surface methodology was used to identify the optimum amounts of calcium, copper, and cerium. The optimized Ca/Cu/YCeO2-TiO2catalyst was then extensively studied and characterized. The coupling of yttrium-stabilized ceria with TiO2provided an active support that effectively activated naphthalene. When calcium and copper were added to the support, the obtained Ca/Cu/YCeO2-TiO2catalyst achieved the full conversion of CO and naphthalene and 72% conversion of NO. The Ca/Cu/YCeO2-TiO2catalyst possessed labile oxygen species, which might be related to the high catalytic activity.

Idioma originalInglés
Páginas (desde-hasta)39896-39906
Número de páginas11
PublicaciónRSC Advances
Volumen11
N.º63
DOI
EstadoPublicada - 14 dic. 2021

Áreas temáticas de ASJC Scopus

  • Química (todo)
  • Ingeniería química (todo)

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