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http://hdl.handle.net/2445/179432
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DC Field | Value | Language |
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dc.contributor.author | Cardenas Flechas, Leydi Julieta | - |
dc.contributor.author | Xuriguera Martín, María Elena | - |
dc.contributor.author | Padilla Sánchez, José Antonio | - |
dc.contributor.author | Chimenos Ribera, Josep Ma. | - |
dc.contributor.author | Rincon Joya, Miryam | - |
dc.date.accessioned | 2021-07-26T12:35:53Z | - |
dc.date.available | 2023-07-16T05:10:23Z | - |
dc.date.issued | 2021-07-16 | - |
dc.identifier.issn | 0167-577X | - |
dc.identifier.uri | http://hdl.handle.net/2445/179432 | - |
dc.description.abstract | This work presents the experimental comparison of the effect of temperature and nickel addition on the synthesis of NixCo3-xO4 nanostructures x = 0.01, 0.04, 0.1, 0.16, using the sol-gel technique with final heat treatment at 600 °C and 800°C. X-ray diffraction (XRD) analysis indicates the formation of pure Co3O4 at 600 °C and the appearance of an additional residual NiO phase at 800 °C. The presence of this phase evidences a deviation in the peaks of the diffraction angle to lower ones generated by the difference in ionic radii, which is related to the insertion of larger ions (Ni2+) doped in the matrix of Co3O4. Scanning electron microscope (SEM) analysis indicates that there is a densification of the grains at higher temperatures, possibly associated with the thermal effect that generates greater interdiffusion. Fourier-transform infrared spectroscopy (FTIR) spectra show two main absorption bands with vibrations Co2+¬O, Co3+¬O and Ni¬O in 456 cm-1. The effect of doping generates a displacement in the bands that are evident in the Raman analysis, where the vibrational mode A1g at 600 °C is translated 28.07 cm-1. The values of SBET specific surface area indicate that as temperature increases, the surface area and volume of micropores decreases. | - |
dc.format.extent | 1 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.matlet.2021.130477 | - |
dc.relation.ispartof | Materials Letters, 2021, vol. 303, p. 130477-1-130477-4 | - |
dc.relation.uri | https://doi.org/10.1016/j.matlet.2021.130477 | - |
dc.rights | cc-by-nc-nd (c) Elsevier B.V., 2021 | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Níquel | - |
dc.subject.classification | Nanoestructures | - |
dc.subject.classification | Cobalt | - |
dc.subject.other | Nickel | - |
dc.subject.other | Nanostructures | - |
dc.subject.other | Cobalt | - |
dc.title | Experimental comparison of the effect of temperature on the vibrational and morphological properties of NixCo3-xO4 nanostructures | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 713322 | - |
dc.date.updated | 2021-07-26T12:35:53Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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713322.pdf | 756.59 kB | Adobe PDF | View/Open |
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