dor_id: 4107521

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

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336.#.#.a: Artículo

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351.#.#.a: Artículos

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270.1.#.d: México

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856.4.0.u: https://rmf.smf.mx/ojs/rmf/article/view/Vol.%2065%2C%20issue%205%2C%20pp.%20449-458/4694; https://rmf.smf.mx/ojs/rmf/article/downloadSuppFile/Vol.%2065%2C%20issue%205%2C%20pp.%20449-458/598

100.1.#.a: Luna Cervantes, M.; Hernández Torres, J.; Zamora Peredo.

524.#.#.a: Luna Cervantes, M., et al. (2019). Raman spectroscopic study of the influence of voltage-time on titania growth-fast anodized nanostructures. Revista Mexicana de Física; Vol 65, No 5 Sept-Oct: 449-458. Recuperado de https://repositorio.unam.mx/contenidos/4107521

245.1.0.a: Raman spectroscopic study of the influence of voltage-time on titania growth-fast anodized nanostructures

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2019

264.#.1.c: 2019-09-02

653.#.#.a: Nanotubes, nanopores, nanograss, Raman, Titania

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2019-09-02, para un uso diferente consultar al responsable jurídico del repositorio por medio de rmf@ciencias.unam.mx

884.#.#.k: https://rmf.smf.mx/ojs/rmf/article/view/Vol.%2065%2C%20issue%205%2C%20pp.%20449-458

001.#.#.#: oai:ojs.rmf.smf.mx:article/520

041.#.7.h: eng

520.3.#.a: Many studies, focused in TiO2 nanotubes obtained by anodization, uses frequently a NH4F salt concentration from 0.3 – 0.5 wt% and the information about how voltage and time affects to nanotubes morphology, are valid for these concentration, moreover, this range induces a long time of anodized. TiO2 nanotubes were prepared by anodization process of a set of titanium foils in order to study the influence of time and voltage on the morphology of them. The anodization process consists of an organic media of ethylene glycol and 1.2 wt% of NH4F salts, voltage from 5 to 30 V for a time period from 1 to 6 hours, constant potential of 30 V for a time lapse from 10 to 360 minutes and 5 to 480 seconds. All anodized samples are rinsed and annealed to 400 °C by 3 hours to obtain an anatase crystalline structure. The morphological characterization was carried out by Field Emission Scanning Electron Microscopy (FESEM) to verify the presence of the nanostructures: nanopores, nanotubes and nanograss, these nanostructures were identified to appear for a time period from 5 to 480 seconds, 10 to 60 minutes and 1 to 6 hours, respectively. The surface morphology, inner diameter and length of the nanotubes varied with the electrochemical anodization parameters. Raman spectroscopy was used for optical characterization in order to identify the changes in signal intensity and Eg mode Shift and it was observed that intensity suffers an increment and Eg mode suffers a blue shift as a thickness function.

773.1.#.t: Revista Mexicana de Física; Vol 65, No 5 Sept-Oct (2019): 449-458

773.1.#.o: https://rmf.smf.mx/ojs/rmf/index

046.#.#.j: 2020-11-25 00:00:00.000000

022.#.#.a: 2683-2224 (digital); 0035-001X (impresa)

310.#.#.a: Bimestral

264.#.1.b: Sociedad Mexicana de Física, A.C.

758.#.#.1: https://rmf.smf.mx/ojs/rmf/index

doi: https://doi.org/10.31349/RevMexFis.65.449

handle: 2f86e730a913ab11

harvesting_date: 2020-09-23 00:00:00.0

856.#.0.q: application/pdf

last_modified: 2020-11-27 00:00:00

license_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es

license_type: by-nc-nd

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Artículo

Raman spectroscopic study of the influence of voltage-time on titania growth-fast anodized nanostructures

Luna Cervantes, M.; Hernández Torres, J.; Zamora Peredo.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Luna Cervantes, M., et al. (2019). Raman spectroscopic study of the influence of voltage-time on titania growth-fast anodized nanostructures. Revista Mexicana de Física; Vol 65, No 5 Sept-Oct: 449-458. Recuperado de https://repositorio.unam.mx/contenidos/4107521

Descripción del recurso

Autor(es)
Luna Cervantes, M.; Hernández Torres, J.; Zamora Peredo.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Raman spectroscopic study of the influence of voltage-time on titania growth-fast anodized nanostructures
Fecha
2019-09-02
Resumen
Many studies, focused in TiO2 nanotubes obtained by anodization, uses frequently a NH4F salt concentration from 0.3 – 0.5 wt% and the information about how voltage and time affects to nanotubes morphology, are valid for these concentration, moreover, this range induces a long time of anodized. TiO2 nanotubes were prepared by anodization process of a set of titanium foils in order to study the influence of time and voltage on the morphology of them. The anodization process consists of an organic media of ethylene glycol and 1.2 wt% of NH4F salts, voltage from 5 to 30 V for a time period from 1 to 6 hours, constant potential of 30 V for a time lapse from 10 to 360 minutes and 5 to 480 seconds. All anodized samples are rinsed and annealed to 400 °C by 3 hours to obtain an anatase crystalline structure. The morphological characterization was carried out by Field Emission Scanning Electron Microscopy (FESEM) to verify the presence of the nanostructures: nanopores, nanotubes and nanograss, these nanostructures were identified to appear for a time period from 5 to 480 seconds, 10 to 60 minutes and 1 to 6 hours, respectively. The surface morphology, inner diameter and length of the nanotubes varied with the electrochemical anodization parameters. Raman spectroscopy was used for optical characterization in order to identify the changes in signal intensity and Eg mode Shift and it was observed that intensity suffers an increment and Eg mode suffers a blue shift as a thickness function.
Tema
Nanotubes, nanopores, nanograss, Raman, Titania
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

Enlaces