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  • Gold scrap processing technology for nanoparticles [Elektronski vir]
    Rudolf, Rebeka ...
    The aim of this work was to prepare gold nanoparticles from gold scrap by using Ultrasonic Spray Pyrolysis (USP).USP is an innovative and powerful tool for the synthesis of particles with controlled ... and uniform particle size. The mechanism of gold nanoparticles` synthesis by USP was realized by an investigation of the reactions parameters and morphological characteristics of obtained Au nanoparticles. The experimental investigations were performed by an ultrasonic source of 0.8 and 2.5 MHz, acting in a mixture of chloric/nitric acid and by forming aerosols with constant droplet sizes. The droplet's size depends on the characteristics of the formatted solution and the frequencies of the ultrasound. Subsequent thermal decomposition of the aerosol droplet was performed in a hydrogen and nitrogen atmosphere between 300 and 800 °C. With the experimental production five different fractions of gold nanoparticles were obtained. For the microstructure characterisation of Au nanoparticles the following techniques were used: SEM and TEM microscopies, and EDX analysis.
    Vir: Zbornik referatov 51. mednarodnega livarskega posvetovanja, Portorož 2011 [Elektronski vir] = Conference proceedings 51st International Foundry Conference Portorož 2011, 14.-16. september 2011 ([12] str.)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2011
    Jezik - angleški
    COBISS.SI-ID - 15322902

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