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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.Type of material - conference contributionPublish date - 2011Language - englishCOBISS.SI-ID - 15322902
Author
Rudolf, Rebeka |
Rozman Zorko, Lidija, materiali, 1979- |
Anžel, Ivan, inženir metalurgije in materialov |
Stopić, Srečko |
Friedrich, Bernd
Topics
gold scrap |
ultrasonic spray pyrolysis |
Au nanoparticles |
characteristics |
staro zlato |
ultra zvočna piroliza |
Au nanodelci |
karakterizacija
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Rudolf, Rebeka | 14335 |
Rozman Zorko, Lidija, materiali, 1979- | 31506 |
Anžel, Ivan, inženir metalurgije in materialov | 10369 |
Stopić, Srečko | ![]() |
Friedrich, Bernd | ![]() |
Source: Personal bibliographies
and: SICRIS
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