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Issue 126, 2015
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Real-time imaging of lead nanoparticles in solution – determination of the growth mechanism

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Abstract

In situ electron microscopy is a tool which offers great promise for studying the mechanisms responsible for nanoparticle growth. In aqueous solution, the reduction of Pb2+ by the electron beam results in the formation of lead nanoparticles. Here, we directly examined the fundamental processes that influence the growth of lead nanoparticles in solution using in situ transmission electron microscopy. Lead nanoparticle growth was directly monitored at the molecular level and followed the sequence of nucleation, Ostwald ripening, and aggregative growth. The aggregative growth phase resulted in macrostructures having micron-sized dimensions. Importantly, when combined with quantitative measurements, our direct imaging results suggested that the growth properties observed for lead nanoparticles were unique in comparison to other metallic entities.

Graphical abstract: Real-time imaging of lead nanoparticles in solution – determination of the growth mechanism

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Publication details

The article was received on 04 Sep 2015, accepted on 02 Dec 2015 and first published on 10 Dec 2015


Article type: Communication
DOI: 10.1039/C5RA18054F
Citation: RSC Adv., 2015,5, 104193-104197
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    Real-time imaging of lead nanoparticles in solution – determination of the growth mechanism

    Diana. L. Delach, M. J. Dukes, A. C. Varano, D. F. Kelly and A. D. Dukes III, RSC Adv., 2015, 5, 104193
    DOI: 10.1039/C5RA18054F

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