ArticleChemistry of materials : a publication of the American Chemical Society2023
From Multi- to Single-Hollow Trimetallic Nanocrystals by Ultrafast Heating.
Article in Chemistry of materials : a publication of the American Chemical Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Colloidal gold-palladium-platinum alloy nanospheres with tunable compositions and defined numbers of atoms.Nanoscale · 2025Article
- Defect-Rich CuZn Nanoparticles for Model Catalysis Produced by Femtosecond Laser Ablation.ACS applied materials & interfaces · 2024Article
- Formation of hollow silver nanoparticles under irradiation with ultrashort laser pulses.Nanophotonics (Berlin, Germany) · 2024Article
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Authors and funding
11 authors.
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Abstract
Metal nanocrystals (NCs) display unique physicochemical features that are highly dependent on nanoparticle dimensions, anisotropy, structure, and composition. The development of synthesis methodologies that allow us to tune such parameters finely emerges as crucial for the application of metal NCs in catalysis, optical materials, or biomedicine. Here, we describe a synthetic methodology to fabricate hollow multimetallic heterostructures using a combination of seed-mediated growth routes and femtosecond-pulsed laser irradiation. The envisaged methodology relies on the coreduction of Ag and Pd ions on gold nanorods (Au NRs) to form Au@PdAg core-shell nanostructures containing small cavities at the Au-PdAg interface. The excitation of Au@PdAg NRs with low fluence femtosecond pulses was employed to induce the coalescence and growth of large cavities, forming multihollow anisotropic Au@PdAg nanostructures. Moreover, single-hollow alloy AuPdAg could be achieved in high yield by increasing the irradiation energy. Advanced electron microscopy techniques, energy-dispersive X-ray spectroscopy (EDX) tomography, X-ray absorption near-edge structure (XANES) spectroscopy, and finite differences in the time domain (FDTD) simulations allowed us to characterize the morphology, structure, and elemental distribution of the irradiated NCs in detail. The ability of the reported synthesis route to fabricate multimetallic NCs with unprecedented hollow nanostructures offers attractive prospects for the fabrication of tailored high-entropy alloy nanoparticles.
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