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Green Nanochemistry: Metal Oxide Nanoparticles and Porous Thin Films from Bare Metal Powders

Authors

  • Engelbert Redel,

    1. Lash Miller Chemistry Department, University of Toronto, Centre for Inorganic and Polymeric Nanomaterials, 80 St. George Street, Toronto, M5S 3H6, Ontario, Canada
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  • Srebri Petrov,

    1. Lash Miller Chemistry Department, University of Toronto, Centre for Inorganic and Polymeric Nanomaterials, 80 St. George Street, Toronto, M5S 3H6, Ontario, Canada
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  • Ömer Dag,

    1. Department of Chemistry, Bilkent University, 06800, Ankara, Turkey
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  • Jonathon Moir,

    1. Lash Miller Chemistry Department, University of Toronto, Centre for Inorganic and Polymeric Nanomaterials, 80 St. George Street, Toronto, M5S 3H6, Ontario, Canada
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  • Chen Huai,

    1. Lash Miller Chemistry Department, University of Toronto, Centre for Inorganic and Polymeric Nanomaterials, 80 St. George Street, Toronto, M5S 3H6, Ontario, Canada
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  • Peter Mirtchev,

    1. Lash Miller Chemistry Department, University of Toronto, Centre for Inorganic and Polymeric Nanomaterials, 80 St. George Street, Toronto, M5S 3H6, Ontario, Canada
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  • Geoffrey A. Ozin

    Corresponding author
    1. Lash Miller Chemistry Department, University of Toronto, Centre for Inorganic and Polymeric Nanomaterials, 80 St. George Street, Toronto, M5S 3H6, Ontario, Canada
    • Lash Miller Chemistry Department, University of Toronto, Centre for Inorganic and Polymeric Nanomaterials, 80 St. George Street, Toronto, M5S 3H6, Ontario, Canada.

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Abstract

original image

A universal, simple, robust, widely applicable and cost-effective aqueous process is described for a controlled oxidative dissolution process of micrometer-sized metal powders to form high-purity aqueous dispersions of colloidally stable 3–8 nm metal oxide nanoparticles. Their utilization for making single and multilayer optically transparent high-surface-area nanoporous films is demonstrated. This facile synthesis is anticipated to find numerous applications in materials science, engineering, and nanomedicine.

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