Defective Ce3+associated CeO2 nanoleaves for enhanced CO oxidation

M. Romero-Sáez; R. Suresh; N. Benito; Saravanan Rajendran; F. Gracia; Carlos Navas-Cárdenas; A. K. Priya; Matias Soto-Moscoso

doi:10.1016/j.fuel.2021.122822

Defective Ce³⁺associated CeO₂ nanoleaves for enhanced CO oxidation

M. Romero-Sáez
, R. Suresh
, N. Benito
, Saravanan Rajendran
, F. Gracia
, Carlos Navas-Cárdenas
, A. K. Priya
, Matias Soto-Moscoso

Departamento de Ingeniería Mecánica

Instituto Tecnológico Metropolitano
Universidad de Tarapacá
Universidad de Concepción
Universidad de Chile
Universidad Yachay Tech
KPR Institute of Engineering and Technology
Universidad del Bío-Bío

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

16 Citas (Scopus)

Resumen

In this research paper, the CO oxidation performance of mesoporous CeO₂ nanoleaves was compared with commercial CeO₂ bulk powder. The mesoporous CeO₂ nano leaves were obtained by the solvothermal method. The structure and morphology of the synthesized CeO₂ nano leaves outcomes were characterized by different techniques. The obtained results from X-diffraction (XRD) analysis and high-resolution transmission electron microscopy (HR-TEM) were suggested that the cubic structure of CeO₂ displayed nano leaves along with line displacements which favor more electron active sites. Furthermore, the X-ray photoelectron spectroscopy (XPS) results revealed that the prepared nano leaves exposed Ce³⁺, Ce⁴⁺ and O states. The existed line displacements and oxygen vacancy are beneficial for CO oxidation. Compared to commercial bulk CeO₂, synthesized CeO₂ nano leaves showed superior CO oxidation performance.

Idioma original	Inglés
Número de artículo	122822
Publicación	Fuel
Volumen	315
DOI	https://doi.org/10.1016/j.fuel.2021.122822
Estado	Publicada - 1 may 2022

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title = "Defective Ce3+associated CeO2 nanoleaves for enhanced CO oxidation",

abstract = "In this research paper, the CO oxidation performance of mesoporous CeO2 nanoleaves was compared with commercial CeO2 bulk powder. The mesoporous CeO2 nano leaves were obtained by the solvothermal method. The structure and morphology of the synthesized CeO2 nano leaves outcomes were characterized by different techniques. The obtained results from X-diffraction (XRD) analysis and high-resolution transmission electron microscopy (HR-TEM) were suggested that the cubic structure of CeO2 displayed nano leaves along with line displacements which favor more electron active sites. Furthermore, the X-ray photoelectron spectroscopy (XPS) results revealed that the prepared nano leaves exposed Ce3+, Ce4+ and O states. The existed line displacements and oxygen vacancy are beneficial for CO oxidation. Compared to commercial bulk CeO2, synthesized CeO2 nano leaves showed superior CO oxidation performance.",

keywords = "Ce/CeO, CO oxidation, Line dislocations, Nano leaves, Oxygen vacancy",

author = "M. Romero-S{\'a}ez and R. Suresh and N. Benito and Saravanan Rajendran and F. Gracia and Carlos Navas-C{\'a}rdenas and Priya, \{A. K.\} and Matias Soto-Moscoso",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2022",

month = may,

day = "1",

doi = "10.1016/j.fuel.2021.122822",

language = "English",

volume = "315",

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TY - JOUR

T1 - Defective Ce3+associated CeO2 nanoleaves for enhanced CO oxidation

AU - Romero-Sáez, M.

AU - Suresh, R.

AU - Benito, N.

AU - Rajendran, Saravanan

AU - Gracia, F.

AU - Navas-Cárdenas, Carlos

AU - Priya, A. K.

AU - Soto-Moscoso, Matias

PY - 2022/5/1

Y1 - 2022/5/1

N2 - In this research paper, the CO oxidation performance of mesoporous CeO2 nanoleaves was compared with commercial CeO2 bulk powder. The mesoporous CeO2 nano leaves were obtained by the solvothermal method. The structure and morphology of the synthesized CeO2 nano leaves outcomes were characterized by different techniques. The obtained results from X-diffraction (XRD) analysis and high-resolution transmission electron microscopy (HR-TEM) were suggested that the cubic structure of CeO2 displayed nano leaves along with line displacements which favor more electron active sites. Furthermore, the X-ray photoelectron spectroscopy (XPS) results revealed that the prepared nano leaves exposed Ce3+, Ce4+ and O states. The existed line displacements and oxygen vacancy are beneficial for CO oxidation. Compared to commercial bulk CeO2, synthesized CeO2 nano leaves showed superior CO oxidation performance.

AB - In this research paper, the CO oxidation performance of mesoporous CeO2 nanoleaves was compared with commercial CeO2 bulk powder. The mesoporous CeO2 nano leaves were obtained by the solvothermal method. The structure and morphology of the synthesized CeO2 nano leaves outcomes were characterized by different techniques. The obtained results from X-diffraction (XRD) analysis and high-resolution transmission electron microscopy (HR-TEM) were suggested that the cubic structure of CeO2 displayed nano leaves along with line displacements which favor more electron active sites. Furthermore, the X-ray photoelectron spectroscopy (XPS) results revealed that the prepared nano leaves exposed Ce3+, Ce4+ and O states. The existed line displacements and oxygen vacancy are beneficial for CO oxidation. Compared to commercial bulk CeO2, synthesized CeO2 nano leaves showed superior CO oxidation performance.

KW - Ce/CeO

KW - CO oxidation

KW - Line dislocations

KW - Nano leaves

KW - Oxygen vacancy

UR - https://www.scopus.com/pages/publications/85121681993

U2 - 10.1016/j.fuel.2021.122822

DO - 10.1016/j.fuel.2021.122822

M3 - Article

AN - SCOPUS:85121681993

SN - 0016-2361

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JO - Fuel

JF - Fuel

M1 - 122822