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-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.
Original language | English |
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Pages (from-to) | 39896-39906 |
Number of pages | 11 |
Journal | RSC Advances |
Volume | 11 |
Issue number | 63 |
DOIs | |
State | Published - 14 Dec 2021 |
Bibliographical note
Funding Information:The Chilean National Commission for Scientific and Technological Research (CONICYT) is gratefully acknowledged for funding this work (FONDECYT Regular 1160721 and FONDEF IDeA ID16I10358).
Publisher Copyright:
© The Royal Society of Chemistry 2021.
Keywords
- Calcium
- Calcium compounds
- Catalyst activity
- Copper
- Naphthalene
- Oxygen
- Reduction
- Titanium compounds