Real-time imaging of lead nanoparticles in solution-determination of the growth mechanism

Diana L. Delach, Madeline J. Dukes, Cameron Varano, Deb Kelly, Albert D. Dukes

Research output: Contribution to journalArticle

2 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)104193-104197
Number of pages5
JournalRSC Advances
Volume5
Issue number126
DOIs
StatePublished - Jan 1 2015

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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