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 (Cs)-corrected scanning transmission electron microscopy (STEM) images shows that the average diameter of the Cu–Pt nanoclus...
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2014-08-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.5.150 |
| _version_ | 1819327099560787968 |
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| author | Subarna Khanal Ana Spitale Nabraj Bhattarai Daniel Bahena J. Jesus Velazquez-Salazar Sergio Mejía-Rosales Marcelo M. Mariscal Miguel José-Yacaman |
| author_facet | Subarna Khanal Ana Spitale Nabraj Bhattarai Daniel Bahena J. Jesus Velazquez-Salazar Sergio Mejía-Rosales Marcelo M. Mariscal Miguel José-Yacaman |
| author_sort | Subarna Khanal |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-24T13:05:27Z |
| format | Article |
| id | doaj.art-3f137e5ea6584b5fac62b85e9ae346a0 |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-24T13:05:27Z |
| publishDate | 2014-08-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-3f137e5ea6584b5fac62b85e9ae346a02022-12-21T16:54:00ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862014-08-01511371137910.3762/bjnano.5.1502190-4286-5-150Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclustersSubarna Khanal0Ana Spitale1Nabraj Bhattarai2Daniel Bahena3J. Jesus Velazquez-Salazar4Sergio Mejía-Rosales5Marcelo M. Mariscal6Miguel José-Yacaman7Department of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, 78249, San Antonio, Texas, USAINFIQC, CONICET, Departamento de Matemática y Física, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, (XUA5000) Córdoba, ArgentinaDepartment of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, 78249, San Antonio, Texas, USADepartment of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, 78249, San Antonio, Texas, USADepartment of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, 78249, San Antonio, Texas, USACenter for Innovation and Research in Engineering and Technology, and CICFIM-Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, NL 66450, MéxicoINFIQC, CONICET, Departamento de Matemática y Física, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, (XUA5000) Córdoba, ArgentinaDepartment of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, 78249, San Antonio, Texas, USAHighly 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.https://doi.org/10.3762/bjnano.5.150Cu–Pt clustersenergy dispersive X-ray spectroscopy (EDX)grand-canonical Langevin dynamicsnanoalloysscanning transmission electron microscopy (STEM) |
| spellingShingle | Subarna Khanal Ana Spitale Nabraj Bhattarai Daniel Bahena J. Jesus Velazquez-Salazar Sergio Mejía-Rosales Marcelo M. Mariscal Miguel José-Yacaman Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters Beilstein Journal of Nanotechnology Cu–Pt clusters energy dispersive X-ray spectroscopy (EDX) grand-canonical Langevin dynamics nanoalloys scanning transmission electron microscopy (STEM) |
| 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 | Cu–Pt clusters energy dispersive X-ray spectroscopy (EDX) grand-canonical Langevin dynamics nanoalloys scanning transmission electron microscopy (STEM) |
| url | https://doi.org/10.3762/bjnano.5.150 |
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