Pure and Ni2O3-decorated CeO2 nanoparticles applied as CO gas sensor: Experimental and theoretical insights
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Otros documentos de la autoría: Amoresi, Rafael; Oliveira, Regiane; Cichetto Junior, Leonélio; Desimone, Paula Mariela; Aldao, Celso Manuel; Ponce, Miguel Adolfo; Gracia, Lourdes; Sambrano, Julio; Longo, Elson; Andres, Juan; Simões, Alexandre
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
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comunitat-uji-handle3:10234/8638
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https://doi.org/10.1016/j.ceramint.2022.01.286 |
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Título
Pure and Ni2O3-decorated CeO2 nanoparticles applied as CO gas sensor: Experimental and theoretical insightsAutoría
Fecha de publicación
2022-01-29Editor
ElsevierCita bibliográfica
AMORESI, Rafael Aparecido Ciola, et al. Pure and Ni2O3-decorated CeO2 nanoparticles applied as CO gas sensor: Experimental and theoretical insights. Ceramics International, 2022, vol. 48, no 10, p. 14014-14025.Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
In the present work, the structural, morphological and electrical properties of CeO2 nanoparticles with spherical and rod-like morphologies and rods decorated with Ni2O3 were investigated. Morphological, structural ... [+]
In the present work, the structural, morphological and electrical properties of CeO2 nanoparticles with spherical and rod-like morphologies and rods decorated with Ni2O3 were investigated. Morphological, structural and electronic analyses showed a relationship between the shape/size of particles and the respective surface types, number of carriers, density of vacancies and local structural atomic order, in addition to an influence on the electrical properties of the materials. Electrical analyses revealed that the rod-like morphology has a better CO sensor response than the spherical one. In order to complement and rationalize the experimental findings, simulations at the density functional theory (DFT) were carried out to investigate the two possible mechanisms (Langmuir˗Hinshelwood and Mars-Van Krevelen) acting on the CO adsorption process and elucidate the behavior of the sensor in heterojunction-type samples. [-]
Publicado en
Ceramics International, 2022, vol. 48, no 10Entidad financiadora
Centro de Desenvolvimento de Materiais Funcionais (CDMF) | Centros de Pesquisa, Inovação e Difusão (CEPID) | São Paulo Research Foundation (FAPESP) | National Council for Scientific and Technological Development (CNPq) | LNLS - Brazilian Synchrotron Light Laboratory, Research LMF, CNPEM/MCTIC | Universitat Jaume I | Ministerio de Ciencia, Innovación y Universidades (Spain)
Código del proyecto o subvención
2013/07296-2 | 2019/09296-6 | 2017/19143-7 | 24859 | UJI-B2019-30 | PGC2018094417-B-I00
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© 2022 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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