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Copper and Nickel Nanoparticles Prepared by Thermal Treatment of Their Respective Cations Confined in Nanopores through High-Pressure Synthesis

Abstract : A new and simple method for preparing confined copper and nickel nanoparticles by thermal treatment of their respective cations inside Mobil Composition of Matter 41 (MCM–41) hydrophobic nanopores is presented here. Surface modified MCM–41 hydrophobic materials were impregnated by using high-pressure treatment with copper II (Cu II) or nickel II (Ni II) aqueous solutions. After pressure release and washing, the remaining metal cations, confined exclusively within the nanopores, were heated, forming metallic nanoparticles. Reduction of the cations by a redox reaction between the hydrophobic organic surface and the confined metal cations is proposed. Transmission electronic microscopy (TEM), selected area electron diffraction (SAED), nitrogen (N2) adsorption at −196 °C (77 K), Fourier transform infrared (FTIR) and thermogravimetric (TGA) analyses evidenced the identification of copper and nickel nanoparticles (NPs).
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Submitted on : Wednesday, September 22, 2021 - 12:17:06 PM
Last modification on : Wednesday, November 24, 2021 - 4:38:58 PM

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applnano-02-00020.pdf
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Nancy Brodie-Linder, Johnny Deschamps, Marianne Bombled, Nicolas Pasternak, Fabrice Audonnet, et al.. Copper and Nickel Nanoparticles Prepared by Thermal Treatment of Their Respective Cations Confined in Nanopores through High-Pressure Synthesis. Applied Nano, MDPI, 2021, 2 (3), pp.278-288. ⟨10.3390/applnano2030020⟩. ⟨hal-03351411⟩

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