Surface Diffusion and Coalescence of Mobile Metal Nanoparticles
The Journal of Physical Chemistry B2005Vol. 109(19), pp. 9703–9711
Citations Over TimeTop 10% of 2005 papers
Abstract
The diffusion and coalescence of metal nanoparticles play important roles in many phenomena. Here, we offer a new integrated overview of the main factors that control the nanoparticle coalescence process. Three factors are considered in our description of the coalescence process: nanoparticle diffusion across the surface, their physical and thermodynamic properties, and the mechanism of coalescence. We demonstrate that the liquid-like properties of the surface layers of the nanoparticles play an essential role in this process. We present experimental evidence for our opinion, based on the high-resolution electron microscopic analysis of several different types of nanoparticles.
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