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Weighing supported nanoparticles : size-selected clusters as mass standards in nanometrology

Young, N. P. and Li, Z. Y. and Chen, Yu and Palomba, S. and Di Vece, M. and Palmer, R. E. (2008) Weighing supported nanoparticles : size-selected clusters as mass standards in nanometrology. Physical Review Letters, 101 (24). -. ISSN 0031-9007

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Abstract

We present a new approach to quantify the mass and 3D shape of nanoparticles on supports, using size-selected nanoclusters as mass standards in scanning transmission electron microscope. Through quantitative image intensity analysis, we show that the integrated high angle annular dark field intensities of size-selected gold clusters soft-landed on graphite display a monotonic dependence on the cluster size as far as similar to 6500 atoms. We applied this mass standard to study gold nanoparticles prepared by thermal vapor deposition and by colloidal wet chemistry, and from which we deduced the shapes of these two types of nanoparticles as expected.

Item type: Article
ID code: 35381
Keywords: transmission electron microscopy, catalysts, stem, oxidation, Solid state physics. Nanoscience, Chemistry, Physics and Astronomy(all)
Subjects: Science > Physics > Solid state physics. Nanoscience
Science > Chemistry
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 28 Oct 2011 14:15
    Last modified: 05 Sep 2014 13:08
    URI: http://strathprints.strath.ac.uk/id/eprint/35381

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