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8339089 
Journal Article 
Direct chemical synthesis of L10 FePt nanostructures 
Zafiropoulou, I; Devlin, E; Boukos, N; Niarchos, D; Petridis, D; Tzitzios, V 
2007 
Yes 
Chemistry of Materials
ISSN: 0897-4756
EISSN: 1520-5002 
19 
8 
1898-1900 
English 
The direct synthesis of hard magnetic L10 iron platinum (FePt) and iron platinum gold (FePtAu) nanoparticles, without any postannealing step, was investigated. The direct synthesis process was conducted, with addition of 2mL olaylamine, 2 mL oleic acid, 0.25 mmol and 0.77 mmol AuCl3 to 20 mL of liquid paraffin, to synthesize a material with Fe44Pt 43Au13, having the lowest transformation temperature. Liquid paraffin was used as a high-boiling-point solvent, while oleylamine played the role of a mild reducing agent, along with surfactant and oleic acid. Polyvinyl pyridine was used instead of oleic acid, to control the morphology of the nanoparticles synthesized. Black precipitant produced from the synthesis process, was magnetically separated and washed with a hexane-ethanol mixture to get better results.