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

Highly monodispersed Cu–Pt bimetallic nanoclusters were synthesized by a facile synthesis approach. Analysis of transmission electron microscopy (TEM) and spherical aberration (C(s))-corrected scanning transmission electron microscopy (STEM) images shows that the average diameter of the Cu–Pt nanocl...

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Autores principales: Khanal, Subarna, Spitale, Ana, Bhattarai, Nabraj, Bahena, Daniel, Velazquez-Salazar, J Jesus, Mejía-Rosales, Sergio, M. Mariscal, Marcelo, José-Yacaman, Miguel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2014
Materias:
Full Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4168864/
https://www.ncbi.nlm.nih.gov/pubmed/25247120
http://dx.doi.org/10.3762/bjnano.5.150
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author Khanal, Subarna
Spitale, Ana
Bhattarai, Nabraj
Bahena, Daniel
Velazquez-Salazar, J Jesus
Mejía-Rosales, Sergio
M. Mariscal, Marcelo
José-Yacaman, Miguel
author_facet Khanal, Subarna
Spitale, Ana
Bhattarai, Nabraj
Bahena, Daniel
Velazquez-Salazar, J Jesus
Mejía-Rosales, Sergio
M. Mariscal, Marcelo
José-Yacaman, Miguel
author_sort Khanal, Subarna
collection PubMed
description Highly monodispersed Cu–Pt bimetallic nanoclusters were synthesized by a facile synthesis approach. Analysis of transmission electron microscopy (TEM) and spherical aberration (C(s))-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.
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spelling pubmed-41688642014-09-22 Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters Khanal, Subarna Spitale, Ana Bhattarai, Nabraj Bahena, Daniel Velazquez-Salazar, J Jesus Mejía-Rosales, Sergio M. Mariscal, Marcelo José-Yacaman, Miguel Beilstein J Nanotechnol Full Research Paper Highly monodispersed Cu–Pt bimetallic nanoclusters were synthesized by a facile synthesis approach. Analysis of transmission electron microscopy (TEM) and spherical aberration (C(s))-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. Beilstein-Institut 2014-08-27 /pmc/articles/PMC4168864/ /pubmed/25247120 http://dx.doi.org/10.3762/bjnano.5.150 Text en Copyright © 2014, Khanal et al. https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms)
spellingShingle Full Research Paper
Khanal, Subarna
Spitale, Ana
Bhattarai, Nabraj
Bahena, Daniel
Velazquez-Salazar, J Jesus
Mejía-Rosales, Sergio
M. Mariscal, Marcelo
José-Yacaman, Miguel
Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters
title Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters
title_full Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters
title_fullStr Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters
title_full_unstemmed Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters
title_short Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters
title_sort synthesis, characterization, and growth simulations of cu–pt bimetallic nanoclusters
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4168864/
https://www.ncbi.nlm.nih.gov/pubmed/25247120
http://dx.doi.org/10.3762/bjnano.5.150
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