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- W2887857640 abstract "One-pot wet-chemical synthesis is a simple way to obtain nanoparticles (NPs) with a well-defined shape and composition. However, achieving good control over NP synthesis would require a comprehensive understanding of the mechanisms of NP formation, something that is challenging to obtain experimentally. Here, we study the formation of gold (Au) core–palladium (Pd) shell NPs under kinetically and thermodynamically controlled reaction conditions using in situ liquid cell transmission electron microscopy (TEM). By controlling the reaction temperature, we demonstrate that it is possible to tune the shape of Au nanorods to Au–Pd arrow-headed structures or to cuboidal core–shell NPs. Our in situ studies show that the reaction temperature can switch the Pd shell growth between the kinetically and thermodynamically dominant regimes. The mechanistic insights reported here reveal how the reaction temperature affects the packing of the capping agents and how the facet selection of depositing shell atoms drives the shell formation under different kinetic conditions, which is useful for synthesizing NPs with greater design flexibility in shape and elemental composition for various technological applications." @default.
- W2887857640 created "2018-08-22" @default.
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- W2887857640 date "2018-08-12" @default.
- W2887857640 modified "2023-10-17" @default.
- W2887857640 title "<i>In Situ</i> Kinetic and Thermodynamic Growth Control of Au–Pd Core–Shell Nanoparticles" @default.
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- W2887857640 doi "https://doi.org/10.1021/jacs.8b05217" @default.
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