Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters

Khanal, Subarna y Spitale, Ana y Bhattarai, Nabraj y Bahena, Daniel y Velázquez Salazar, J. Jesús y Mejía Rosales, Sergio y M. Mariscal, Marcelo y José Yacamán, Miguel (2014) Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters. Beilstein journal of nanotechnology, 5. pp. 1371-1379. ISSN 2190-4286

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URL o página oficial: http://doi.org/10.3762/bjnano.5.150

Resumen

Highly monodispersed Cu–Pt bimetallic nanoclusters were synthesized by a facile synthesis approach. Analysis of transmission electron microscopy (TEM) and spherical aberration (Cs)-corrected scanning transmission electron microscopy (STEM) images shows that the average diameter of the Cu–Pt nanoclusters is 3.0 ± 1.0 nm. The high angle annular dark field (HAADF-STEM) images, intensity profiles, and energy dispersive X-ray spectroscopy (EDX) line scans, allowed us to study the distribution of Cu and Pt with atomistic resolution, finding that Pt is embedded randomly in the Cu lattice. A novel simulation method is applied to study the growth mechanism, which shows the formation of alloy structures in good agreement with the experimental evidence. The findings give insight into the formation mechanism of the nanosized Cu–Pt bimetallic catalysts.

Tipo de elemento: Article
Palabras claves no controlados: Cu–Pt clusters, Energy dispersive X-ray spectroscopy (EDX), Grrand-canonical Langevin dynamics, Nanoalloys, Scanning, Transmission electron microscopy (STEM)
Divisiones: Ciencias Físico Matemáticas
Usuario depositante: Editor Repositorio
Creadores:
CreadorEmailORCID
Khanal, SubarnaNO ESPECIFICADONO ESPECIFICADO
Spitale, AnaNO ESPECIFICADONO ESPECIFICADO
Bhattarai, NabrajNO ESPECIFICADONO ESPECIFICADO
Bahena, DanielNO ESPECIFICADONO ESPECIFICADO
Velázquez Salazar, J. JesúsNO ESPECIFICADONO ESPECIFICADO
Mejía Rosales, SergioNO ESPECIFICADONO ESPECIFICADO
M. Mariscal, MarceloNO ESPECIFICADONO ESPECIFICADO
José Yacamán, MiguelNO ESPECIFICADONO ESPECIFICADO
Fecha del depósito: 29 Abr 2019 18:32
Última modificación: 06 Mar 2020 22:17
URI: http://eprints.uanl.mx/id/eprint/15250

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