Understanding the part habits of immiscible components in bimetallic nanomaterials is crucial for controlling their construction and properties. On the nanoscale, the miscibility of those immiscible components typically deviates from their habits in bulk supplies. Regardless of its significance, complete and quantitative experimental insights into the dynamics of the immiscible-to-miscible transition, and vice versa, stay restricted. On this examine, we examine the nucleation and development kinetics of silica-embedded AgPt nanoparticles (NPs) throughout a variety of annealing temperatures (25 °C to 900 °C) to elucidate temperature-dependent nanoalloy part transitions and NP measurement distribution. Our findings reveal that the alloy part persists as much as 400 °C, with a corresponding common NP measurement of ∼2 nm. Past this temperature, part instability begins to happen. We suggest a three-stage strategy of nucleation and development: (1) preliminary AgPt nanoalloy formation throughout deposition, (2) development by way of thermal energy-assisted diffusion as much as 400 °C, and (3) Ag atom emission from the nanoalloy above 500 °C, indicating Ag diffusion in the direction of the floor, adopted by partial sublimation of Ag atoms at 900 °C. These outcomes present essential insights into the thermal limits for the dealloying of NPs, development kinetics, and part stability or instability beneath various thermal circumstances.
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