RT Journal Article
T1 NO Oxidation on Lanthanum-Doped Ceria Nanoparticles with Controlled Morphology
A1 Fernández García, Susana
A1 Tinoco Rivas, Miguel
A1 Hungría, Ana Belén
A1 Chen, Xiaowei
A1 Calvino, José Juan
A1 Martínez Munuera, Juan Carlos
A1 Giménez Mañogil, Javier
A1 García García, Avelina
AB The present work aims to assess the impact of morphology and reducibility on lanthanumdoped ceria nanocatalysts with controlled morphology on the NO oxidation reaction. Specifically, samples were prepared using a hydrothermal method incorporating lanthanum at varying molar concentrations (0, 5, 10, and 15 mol.%) into ceria with a controlled morphology (nanocubes and nanorods). The structural, compositional, and redox characterization of these catalysts has been performed via scanning transmission electron microscopy (STEM), X-ray diffraction (XRD), X-ray energy dispersive spectroscopy (X-EDS), inductively coupled plasma (ICP), hydrogen temperatureprogrammed reduction (H2 -TPR), and oxygen storage capacity (OSC). NO oxidation catalytic tests were conducted, and the results were compared with estimated curves (obtained by considering the proportions of the corresponding components), which revealed the presence of a synergistic effect between lanthanum and ceria. The degree of enhancement was found to depend on both the morphology and the amount of lanthanum incorporated into CeO2 . These findings may facilitate the optimization of features concerning ceria-based nanocatalysts for the removal of NOx emissions from exhaust gases
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/94368
UL https://hdl.handle.net/20.500.14352/94368
LA eng
NO Fernández-García, S.; Tinoco, M.; Hungría, A.B.; Chen, X.; Calvino, J.J.; Martínez-Munuera, J.C.; Giménez-Mañogil, J.; García-García, A. NO Oxidation on Lanthanum-Doped Ceria Nanoparticles with Controlled Morphology. Catalysts 2023, 13, 894. https://doi.org/10.3390/catal13050894
NO Generalitat Valenciana
NO Ministerio de Ciencia Innovación (España)
NO European Commission
DS Docta Complutense
RD 20 abr 2025