A highly active Ca/Cu/YCeO2-TiO2catalyst for the transient reduction of NO with CO and naphthalene under oxidizing conditions
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Fecha
2021-12
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
ISSN de la revista
Título del volumen
Editor
Royal Society of Chemistry
Nombre de Curso
Licencia CC
Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
Licencia CC
https://creativecommons.org/licenses/by-nc/3.0/
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. © The Royal Society of Chemistry 2021.
Notas
Indexación: Scopus
Palabras clave
Calcium, Calcium compounds, Catalyst activity, Copper; Naphthalene, Oxygen, Reduction, Titanium compounds
Citación
RSC Advances Open Access Volume 11, Issue 63, Pages 39896 - 3990614 December 2021
DOI
10.1039/d1ra08412g