dor_id: 4108522

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

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336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

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856.4.0.u: https://rmf.smf.mx/ojs/rmf/article/view/4124/4091

100.1.#.a: López, I. A.; Ceballos, M.; Hernández, G.; Acosta, L.; Gómez, I.

524.#.#.a: López, I. A., et al. (2015). Shape transformation from silver triangular nanoprisms to nanodisks: Raman characterization and sculpturing mechanism. Revista Mexicana de Física; Vol 61, No 2 Mar-Apr: 77-0. Recuperado de https://repositorio.unam.mx/contenidos/4108522

245.1.0.a: Shape transformation from silver triangular nanoprisms to nanodisks: Raman characterization and sculpturing mechanism

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

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2015

264.#.1.c: 2015-01-01

653.#.#.a: Silver triangular nanoprisms; silver nanodisks; Raman spectroscopy

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 2015-01-01, para un uso diferente consultar al responsable jurídico del repositorio por medio de rmf@ciencias.unam.mx

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001.#.#.#: oai:ojs.rmf.smf.mx:article/4124

041.#.7.h: eng

520.3.#.a: The sculpturing action of chloride ions on silver nanoplates is investigated. Recent reports show that the shape transformation from silver triangular nanoprisms to nanodisks by addition of chloride ion occurs after a threshold concentration. In this work, a chemical study of this threshold concentration is presented. There is theoretical and experimental evidence that the morphological change only depends on the chloride ion concentration and not on the Cl-Ag molar ratio. Besides, the chloride ion etching ability is attributed to the (AgCl)\∘complex, which controls the morphology change through a stepwise process where a silver atom is removed from the (110) plane, and is subsequently deposited on the (111) plane (i.e. from the nanoplate vertex to the basal plane). The threshold chloride ion concentration in the shape transformation coincides with the point where Ag+ion and (AgCl)\∘concentrations are the same. On the other hand, the quantitative formation of AgCl2-avoids the stepwise process, and then the colloidal system is destabilized. Furthermore, the analysis of the Raman spectra supports the transformation mechanisms.

773.1.#.t: Revista Mexicana de Física; Vol 61, No 2 Mar-Apr (2015): 77-0

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

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

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handle: 21947e4509bd6cc4

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

Shape transformation from silver triangular nanoprisms to nanodisks: Raman characterization and sculpturing mechanism

López, I. A.; Ceballos, M.; Hernández, G.; Acosta, L.; Gómez, I.

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

López, I. A., et al. (2015). Shape transformation from silver triangular nanoprisms to nanodisks: Raman characterization and sculpturing mechanism. Revista Mexicana de Física; Vol 61, No 2 Mar-Apr: 77-0. Recuperado de https://repositorio.unam.mx/contenidos/4108522

Descripción del recurso

Autor(es)
López, I. A.; Ceballos, M.; Hernández, G.; Acosta, L.; Gómez, I.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Shape transformation from silver triangular nanoprisms to nanodisks: Raman characterization and sculpturing mechanism
Fecha
2015-01-01
Resumen
The sculpturing action of chloride ions on silver nanoplates is investigated. Recent reports show that the shape transformation from silver triangular nanoprisms to nanodisks by addition of chloride ion occurs after a threshold concentration. In this work, a chemical study of this threshold concentration is presented. There is theoretical and experimental evidence that the morphological change only depends on the chloride ion concentration and not on the Cl-Ag molar ratio. Besides, the chloride ion etching ability is attributed to the (AgCl)\∘complex, which controls the morphology change through a stepwise process where a silver atom is removed from the (110) plane, and is subsequently deposited on the (111) plane (i.e. from the nanoplate vertex to the basal plane). The threshold chloride ion concentration in the shape transformation coincides with the point where Ag+ion and (AgCl)\∘concentrations are the same. On the other hand, the quantitative formation of AgCl2-avoids the stepwise process, and then the colloidal system is destabilized. Furthermore, the analysis of the Raman spectra supports the transformation mechanisms.
Tema
Silver triangular nanoprisms; silver nanodisks; Raman spectroscopy
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

Enlaces