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 (Co<sub>3</sub>O<sub>4</sub>) nanoparticles into Co<sub>3-x</sub>Ni<sub>x</sub>O<sub>4</sub>/CoO heterostructures by introducing varying amounts of nickel (x = 0.0–0.16) a...
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| Format: | Article |
| Language: | English |
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AIMS Press
2023-12-01
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| Series: | AIMS Materials Science |
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| Online Access: | https://www.aimspress.com/article/doi/10.3934/matersci.2023058?viewType=HTML |
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| author | Leydi J. Cardenas F. Josep Ma. Chimenos Luis C. Moreno A. Elaine C. Paris Miryam R. Joya |
| author_facet | Leydi J. Cardenas F. Josep Ma. Chimenos Luis C. Moreno A. Elaine C. Paris Miryam R. Joya |
| author_sort | Leydi J. Cardenas F. |
| collection | DOAJ |
| description | In this study, we investigated the phase transition of cobalt spinel (Co<sub>3</sub>O<sub>4</sub>) nanoparticles into Co<sub>3-x</sub>Ni<sub>x</sub>O<sub>4</sub>/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 Co<sub>3-x</sub>Ni<sub>x</sub>O<sub>4</sub>CoO 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<sup>-</sup><sup>1</sup> with increasing Ni content, while ultraviolet-visible (UV-Vis) measurements indicated the energy band (<italic>Eg</italic>). 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 Co<sub>3</sub>O<sub>4</sub> 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 NiCo<sub>2</sub>O<sub>4</sub>/CoO using the sol-gel method followed by calcination. This departure from complex techniques provides an efficient route to acquiring the NiCo<sub>2</sub>O<sub>4</sub>/CoO system, a promissory material for advancing supercapacitor research. |
| first_indexed | 2024-03-08T17:09:18Z |
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| id | doaj.art-e3966c3ec59944f8bd671d4f7ae4fb3d |
| institution | Directory Open Access Journal |
| issn | 2372-0484 |
| language | English |
| last_indexed | 2024-03-08T17:09:18Z |
| publishDate | 2023-12-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | AIMS Materials Science |
| spelling | doaj.art-e3966c3ec59944f8bd671d4f7ae4fb3d2024-01-04T02:05:58ZengAIMS PressAIMS Materials Science2372-04842023-12-011061090110410.3934/matersci.2023058Enhancing 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 heterostructuresLeydi J. Cardenas F.0Josep Ma. Chimenos1 Luis C. Moreno A. 2Elaine C. Paris3Miryam R. Joya41. Facultad de Ingeniería-Departamento de Ingeniería Mecánica y Mecatrónica, Universidad Nacional de Colombia sede Bogotá, Bogotá, Colombia 2. Departamento de Ingeniería Mecánica y mecatrónica, Fundación Universidad de América, Bogotá, Colombia3. Departamento de Ciencia de Materiales y Química Física, Universitat de Barcelona, Barcelona, Spain4. Laboratorio de aplicaciones fisicoquímicas del estado sólido AFES, Departamento de Química, Universidad Nacional de Colombia-sede Bogotá, Bogotá, Colombia5. Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentacção, XV de Novembro st, 1452, 13560-970, São Carlos, São Paulo, Brazil6. Departamento de Física, Facultad de Ciencias, Universidad Nacional de Colombia-Bogotá, Carrera 30 Calle 45-03, 111321, Bogotá, ColombiaIn this study, we investigated the phase transition of cobalt spinel (Co<sub>3</sub>O<sub>4</sub>) nanoparticles into Co<sub>3-x</sub>Ni<sub>x</sub>O<sub>4</sub>/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 Co<sub>3-x</sub>Ni<sub>x</sub>O<sub>4</sub>CoO 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<sup>-</sup><sup>1</sup> with increasing Ni content, while ultraviolet-visible (UV-Vis) measurements indicated the energy band (<italic>Eg</italic>). 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 Co<sub>3</sub>O<sub>4</sub> 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 NiCo<sub>2</sub>O<sub>4</sub>/CoO using the sol-gel method followed by calcination. This departure from complex techniques provides an efficient route to acquiring the NiCo<sub>2</sub>O<sub>4</sub>/CoO system, a promissory material for advancing supercapacitor research.https://www.aimspress.com/article/doi/10.3934/matersci.2023058?viewType=HTMLcobaltitenico<sub>2</sub>o<sub>4</sub>heterostructureannealing temperaturenitem |
| spellingShingle | Leydi J. Cardenas F. Josep Ma. Chimenos Luis C. Moreno A. Elaine C. Paris Miryam R. Joya 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 AIMS Materials Science cobaltite nico<sub>2</sub>o<sub>4</sub> heterostructure annealing temperature ni tem |
| 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 |
| 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_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_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 |
| topic | cobaltite nico<sub>2</sub>o<sub>4</sub> heterostructure annealing temperature ni tem |
| url | https://www.aimspress.com/article/doi/10.3934/matersci.2023058?viewType=HTML |
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