Blake Rogers, Carlos E. Rufino da Silva, Juan Pedro Palomares-Báez, J. Jesús Velázquez Salazar, José Luis Rodríguez López, Juan Martín Montejano-Carrizales and Miguel José Yacamán
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Study of decahedral multimetallic nanoparticles using large-angle convergent-beam electron diffraction
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.
期刊介绍：
Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions.
The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.
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