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Updated: Sep 25, 2025

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
A highly active Ca/Cu/YCeO2-TiO2 catalyst for the transient reduction of NO with CO and naphthalene under oxidizing
Luis Sánchez1,2, Gonzalo Aguila3, Paulo Araya1
1Departamento de Ingeniería Química, Biotecnología y Materiales, Universidad de Chile Casilla 2777 Santiago Chile.
Abstract:
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-TiO2 catalyst. Response surface methodology was used to identify the optimum amounts of calcium, copper, and cerium. The optimized Ca/Cu/YCeO2-TiO2 catalyst was then extensively studied and characterized. The coupling of yttrium-stabilized ceria with TiO2 provided an active support that effectively activated naphthalene. When calcium and copper were added to the support, the obtained Ca/Cu/YCeO2-TiO2 catalyst achieved the full conversion of CO and naphthalene and 72% conversion of NO. The Ca/Cu/YCeO2-TiO2 catalyst possessed labile oxygen species, which might be related to the high catalytic activity.
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