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    Effect of temperature on the nucleation and growth of precious metal nanocrystals

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    Barry_et_al_Angewandte_Chemie.pdf (846.8Kb)
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    Publication date
    2019-12
    Author
    Pitto-Barry, Anaïs
    Barry, Nicolas P.E.
    Keyword
    Metal nanocrystals
    Nucleation
    Osmium
    Transmission electron microscopy
    Rights
    © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Pitto-Barry A and Barry NPE (2019) Effect of temperature on the nucleation and growth of precious metal nanocrystals. Angewandte Chemie: International Edition. 58(51): 18482-18486, which has been published in final form at https://doi.org/10.1002/anie.201912219. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
    Peer-Reviewed
    Yes
    
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    Abstract
    Understanding the effect of physical parameters (e.g., temperature) on crystallisation dynamics is of paramount importance for the synthesis of nanocrystals of well‐defined sizes and geometries. However, imaging nucleation and growth is an experimental challenge owing to the resolution required and the kinetics involved. Here, by using an aberration‐corrected transmission electron microscope, we report the fabrication of precious metal nanocrystals from nuclei and the identification of the dynamics of their nucleation at three different temperatures (20, 50, and 100 °C). A fast, and apparently linear, acceleration of the growth rate is observed against increasing temperature (78.8, 117.7, and 176.5 pm min−1, respectively). This work appears to be the first direct observation of the effect of temperature on the nucleation and growth of metal nanocrystals.
    URI
    http://hdl.handle.net/10454/17467
    Version
    Accepted manuscript
    Citation
    Pitto-Barry A and Barry NPE (2019) Effect of temperature on the nucleation and growth of precious metal nanocrystals. Angewandte Chemie: International Edition. 58(51): 18482-18486.
    Link to publisher’s version
    https://doi.org/10.1002/anie.201912219
    Type
    Article
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    Life Sciences Publications

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