Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 52, Issue 50, Pages 17841-17847Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie403250p
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Funding
- Spanish Ministry of Economy and Competitiveness [MAT2011-23641]
- Spanish Ministerio de Educacion through Programa Nacional de Movilidad de Recursos Humanos of Plan Nacional of I-D+i
- The Universidad de Guanajuato
- CONACyT (Mexico)
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The synthesis of magnetic nanoparticles by thermal decomposition in organic media has been studied in this work The analysis was focused on external parameters, like stirring rate and reaction growth kinetics, given that they are crucial for scaling up the synthesis of magnetic nanoparticles. These parameters have been shown to control magnetite nanoparticle size and size distribution. Magnetite nanoparticles were prepared by thermal decomposition of iron(III) acetylacetonate in 1-octadecene using different stirring rates. At 100 rpm, the largest particle size was achieved, ca. 10 nm, which showed superparamagnetic behavior at room temperature. Growth kinetics were studied at a stirring rate (r) of 100 rpm. Data showed that during magnetite synthesis, particle growth exhibits a sigmoidal behavior and a final Oswald ripening process. Data were fitted to the double Boltzmann function.
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