Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures

In this study, we investigated the phase transition of cobalt spinel (Co3O4) nanoparticles into Co3-xNixO4/CoO heterostructures by introducing varying amounts of nickel (x = 0.0–0.16) and subjecting the particles to high annealing temperatures of 1000 ℃. X-ray diffraction (XRD) analysis confirmed th...

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Autores: Cardenas, Leydi J., Chimenos Ribera, Josep Ma., Moreno, Luis C., Paris, Elaine C., Joya, Miryam R.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/220213
Acceso en línea:https://hdl.handle.net/2445/220213
Access Level:acceso abierto
Palabra clave:Nanopartícules
Cobalt
Níquel
Nanoparticles
Nickel
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spelling Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructuresCardenas, Leydi J.Chimenos Ribera, Josep Ma.Moreno, Luis C.Paris, Elaine C.Joya, Miryam R.NanopartículesCobaltNíquelNanoparticlesCobaltNickelIn this study, we investigated the phase transition of cobalt spinel (Co3O4) nanoparticles into Co3-xNixO4/CoO heterostructures by introducing varying amounts of nickel (x = 0.0–0.16) and subjecting the particles to high annealing temperatures of 1000 ℃. X-ray diffraction (XRD) analysis confirmed the Co3-xNixO4CoO structure for all samples. Transmission electron microscopy (TEM) provided further insights into the phase or heterostructure of the samples after annealing, revealing the arrangement of the two phases. Fourier-transform infrared spectroscopy measurements demonstrated a band shift around 537 cm-1 with increasing Ni content, while ultraviolet-visible (UV-Vis) measurements indicated the energy band (Eg). Significant morphological changes were observed in scanning electron microscope (SEM) measurements at 0.16 Ni, displaying irregular agglomerates. Our findings suggest that introducing Ni into the Co3O4 structure and increasing the annealing temperature to 1000 ℃ can lead to the formation of a heterostructured system. Furthermore, our study's significance is highlighted by the streamlined synthesis of NiCo2O4/CoO using the sol-gel method followed by calcination. This departure from complex techniques provides an efficient route to acquiring the NiCo2O4/CoO system, a promissory material for advancing supercapacitor research.AIMS Press2025202520232025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion15 p.application/pdfhttps://hdl.handle.net/2445/220213Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3934/matersci.2023058AIMS Materials Science, 2023, vol. 10, num.6, p. 1090-1104https://doi.org/10.3934/matersci.2023058cc-by (c) Cardenas, Leydi J. et al., 2023http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2202132026-05-29T05:05:01Z
dc.title.none.fl_str_mv Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures
title Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures
spellingShingle Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures
Cardenas, Leydi J.
Nanopartícules
Cobalt
Níquel
Nanoparticles
Cobalt
Nickel
title_short Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures
title_full Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures
title_fullStr Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures
title_full_unstemmed Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures
title_sort Enhancing Co<sub>3</sub>O<sub>4</sub> nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo<sub>2</sub>O<sub>4</sub>/CoO heterostructures
dc.creator.none.fl_str_mv Cardenas, Leydi J.
Chimenos Ribera, Josep Ma.
Moreno, Luis C.
Paris, Elaine C.
Joya, Miryam R.
author Cardenas, Leydi J.
author_facet Cardenas, Leydi J.
Chimenos Ribera, Josep Ma.
Moreno, Luis C.
Paris, Elaine C.
Joya, Miryam R.
author_role author
author2 Chimenos Ribera, Josep Ma.
Moreno, Luis C.
Paris, Elaine C.
Joya, Miryam R.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Nanopartícules
Cobalt
Níquel
Nanoparticles
Cobalt
Nickel
topic Nanopartícules
Cobalt
Níquel
Nanoparticles
Cobalt
Nickel
description In this study, we investigated the phase transition of cobalt spinel (Co3O4) nanoparticles into Co3-xNixO4/CoO heterostructures by introducing varying amounts of nickel (x = 0.0–0.16) and subjecting the particles to high annealing temperatures of 1000 ℃. X-ray diffraction (XRD) analysis confirmed the Co3-xNixO4CoO structure for all samples. Transmission electron microscopy (TEM) provided further insights into the phase or heterostructure of the samples after annealing, revealing the arrangement of the two phases. Fourier-transform infrared spectroscopy measurements demonstrated a band shift around 537 cm-1 with increasing Ni content, while ultraviolet-visible (UV-Vis) measurements indicated the energy band (Eg). Significant morphological changes were observed in scanning electron microscope (SEM) measurements at 0.16 Ni, displaying irregular agglomerates. Our findings suggest that introducing Ni into the Co3O4 structure and increasing the annealing temperature to 1000 ℃ can lead to the formation of a heterostructured system. Furthermore, our study's significance is highlighted by the streamlined synthesis of NiCo2O4/CoO using the sol-gel method followed by calcination. This departure from complex techniques provides an efficient route to acquiring the NiCo2O4/CoO system, a promissory material for advancing supercapacitor research.
publishDate 2023
dc.date.none.fl_str_mv 2023
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/220213
url https://hdl.handle.net/2445/220213
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3934/matersci.2023058
AIMS Materials Science, 2023, vol. 10, num.6, p. 1090-1104
https://doi.org/10.3934/matersci.2023058
dc.rights.none.fl_str_mv cc-by (c) Cardenas, Leydi J. et al., 2023
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Cardenas, Leydi J. et al., 2023
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 15 p.
application/pdf
dc.publisher.none.fl_str_mv AIMS Press
publisher.none.fl_str_mv AIMS Press
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869420231104921600
score 15,812429

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