In Situ Observation of Oscillatory Growth of Bismuth Nanoparticles
- 7 February 2012
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 12 (3), 1470-1474
- https://doi.org/10.1021/nl2041854
Abstract
We study the growth of Bi nanoparticles in an engineered precursor-scarce environment in a liquid cell at an elevated temperature (180 °C) using transmission electron microscopy. Observation reveals dynamics of oscillatory growth of individual nanoparticles, pairwise Ostwald ripening and anti-Ostwald ripening and a global collective oscillation. The experimental results suggest a mass-transport zone is present around each particle, which couples to the observed growth kinetics. This study shed light on a new route for system engineering to reverse particle coursing by Ostwald ripening.Keywords
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