Impedance spectroscopy: A useful technique to unveil the mechanism of a CO oxidation reaction
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Títol
Impedance spectroscopy: A useful technique to unveil the mechanism of a CO oxidation reactionData de publicació
2023Editor
WileyISSN
0002-7820; 1551-2916Cita bibliogràfica
DOS SANTOS VEIGA, Emerson Luiz, et al. Impedance spectroscopy: A useful technique to unveil the mechanism of a CO oxidation reaction. Journal of the American Ceramic Society, 2024, 107.1: 321-333.Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
In this work, the impedance spectroscopy (IS) technique was used to aid inunderstanding the reaction mechanism of the CO oxidation reaction using thePr2Zr2−xFexO7±δ(x=0 and 0.10) mixed oxide as a heterogeneous catalyst. ... [+]
In this work, the impedance spectroscopy (IS) technique was used to aid inunderstanding the reaction mechanism of the CO oxidation reaction using thePr2Zr2−xFexO7±δ(x=0 and 0.10) mixed oxide as a heterogeneous catalyst. Thecatalytic reaction occurred in the same temperature range where there was adecrease in the overall resistivity of the materials. Moreover, it has been observedthat within the temperature range where the catalytic process takes place, thereis a variation in theAandnparameters of the power law dispersion. CombiningIS with catalytic reactions offers a robust approach to enhance the understand-ing of the mechanisms involved in the CO oxidation reaction. It enables preciseanalysis of the changes that take place at the solid–gas interface, particularly thegeneration of reactive oxygen species. Furthermore, it allows examining the rela-tionship between the presence of oxygen vacancies and defects, which directlyimpact the catalytic process. [-]
Publicat a
Journal of the American Ceramic Society, 2024, 107.1: 321-333Entitat finançadora
Spanish Ministerio de Ciencia e Innovación | Generalitat Valenciana
Codi del projecte o subvenció
PID2020-116149GB-I00 | GRISOLIA/2019/054 | MICINN/FEDER PID2021-124572OB-C31 | GC 2021 SGR 01061
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info:eu-repo/semantics/openAccess
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