Study of decahedral multimetallic nanoparticles using large-angle convergent-beam electron diffraction

Blake Rogers; Carlos E. Rufino da Silva; Juan Pedro Palomares-Báez; J. Jesús Velázquez Salazar; José Luis Rodríguez López; Juan Martín Montejano-Carrizales; Miguel José Yacamán

doi:10.1039/d5cp00109a

Study of decahedral multimetallic nanoparticles using large-angle convergent-beam electron diffraction

Blake Rogers, Carlos E. Rufino da Silva, Juan Pedro Palomares-Báez, J. Jesús Velázquez Salazar, José Luis Rodríguez López, Juan Martín Montejano-Carrizales, Miguel José Yacamán

Applied Physics and Materials Science

Research output: Contribution to journal › Article › peer-review

Abstract

In this work, we characterize AuCuNiPd decahedral nanoparticles using advanced electron microscopy and computational techniques. Additionally, we introduce a novel method for analyzing asymmetrical HOLZ patterns, enabling highly precise lattice spacing determinations. By combining convergent beam electron diffraction (CBED) imaging with molecular dynamics simulations, we gain valuable insights into the structural properties of these nanoparticles. Our results reveal a globally distorted FCC lattice, best approximated by a body-centered tetragonal (BCT) structure with lattice parameters a = b = 0.287 nm and c = 0.415 nm. From LACBED analysis, the strain distribution in decahedra consists of two pairs of tetrahedra with distinct strain values, while the fifth tetrahedron exhibits a unique strain state.

Original language	English (US)
Pages (from-to)	8368-8376
Number of pages	9
Journal	Physical Chemistry Chemical Physics
Volume	27
Issue number	16
DOIs	https://doi.org/10.1039/d5cp00109a
State	Published - Mar 28 2025

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1039/d5cp00109a

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title = "Study of decahedral multimetallic nanoparticles using large-angle convergent-beam electron diffraction",

abstract = "In this work, we characterize AuCuNiPd decahedral nanoparticles using advanced electron microscopy and computational techniques. Additionally, we introduce a novel method for analyzing asymmetrical HOLZ patterns, enabling highly precise lattice spacing determinations. By combining convergent beam electron diffraction (CBED) imaging with molecular dynamics simulations, we gain valuable insights into the structural properties of these nanoparticles. Our results reveal a globally distorted FCC lattice, best approximated by a body-centered tetragonal (BCT) structure with lattice parameters a = b = 0.287 nm and c = 0.415 nm. From LACBED analysis, the strain distribution in decahedra consists of two pairs of tetrahedra with distinct strain values, while the fifth tetrahedron exhibits a unique strain state.",

author = "Blake Rogers and {Rufino da Silva}, {Carlos E.} and Palomares-B{\'a}ez, {Juan Pedro} and {Vel{\'a}zquez Salazar}, {J. Jes{\'u}s} and {Rodr{\'i}guez L{\'o}pez}, {Jos{\'e} Luis} and Montejano-Carrizales, {Juan Mart{\'i}n} and Yacam{\'a}n, {Miguel Jos{\'e}}",

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month = mar,

day = "28",

doi = "10.1039/d5cp00109a",

language = "English (US)",

volume = "27",

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journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

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T1 - Study of decahedral multimetallic nanoparticles using large-angle convergent-beam electron diffraction

AU - Rogers, Blake

AU - Rufino da Silva, Carlos E.

AU - Palomares-Báez, Juan Pedro

AU - Velázquez Salazar, J. Jesús

AU - Rodríguez López, José Luis

AU - Montejano-Carrizales, Juan Martín

AU - Yacamán, Miguel José

PY - 2025/3/28

Y1 - 2025/3/28

N2 - In this work, we characterize AuCuNiPd decahedral nanoparticles using advanced electron microscopy and computational techniques. Additionally, we introduce a novel method for analyzing asymmetrical HOLZ patterns, enabling highly precise lattice spacing determinations. By combining convergent beam electron diffraction (CBED) imaging with molecular dynamics simulations, we gain valuable insights into the structural properties of these nanoparticles. Our results reveal a globally distorted FCC lattice, best approximated by a body-centered tetragonal (BCT) structure with lattice parameters a = b = 0.287 nm and c = 0.415 nm. From LACBED analysis, the strain distribution in decahedra consists of two pairs of tetrahedra with distinct strain values, while the fifth tetrahedron exhibits a unique strain state.

AB - In this work, we characterize AuCuNiPd decahedral nanoparticles using advanced electron microscopy and computational techniques. Additionally, we introduce a novel method for analyzing asymmetrical HOLZ patterns, enabling highly precise lattice spacing determinations. By combining convergent beam electron diffraction (CBED) imaging with molecular dynamics simulations, we gain valuable insights into the structural properties of these nanoparticles. Our results reveal a globally distorted FCC lattice, best approximated by a body-centered tetragonal (BCT) structure with lattice parameters a = b = 0.287 nm and c = 0.415 nm. From LACBED analysis, the strain distribution in decahedra consists of two pairs of tetrahedra with distinct strain values, while the fifth tetrahedron exhibits a unique strain state.

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JO - Physical Chemistry Chemical Physics

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Study of decahedral multimetallic nanoparticles using large-angle convergent-beam electron diffraction

Abstract

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