Synthesis of CoPt Nanoparticles by Reduction of Co(CH3COO)2 and Pt(acac)2

Hui Ping Shao; Zhi Wang; Tao Lin; Sen Sun

doi:10.4028/www.scientific.net/AMR.712-715.233

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 712-715Synthesis of CoPt Nanoparticles by Reduction of...

Synthesis of CoPt Nanoparticles by Reduction of Co(CH₃COO)₂ and Pt(acac)₂

Abstract:

CoPt nanoparticles with an average size of 2.8 – 4.7 nm were synthesized by reduction of non-toxic precursors Co(CH₃COO)₂ and Pt(acac)₂ using trioctylamine as a solvent at reaction temperature of 260 – 280 °C. The X-ray diffraction pattern showed that as-prepared particles have a disordered face-centered cubic structure while annealing at 700 °C caused them to be an ordered face-centered tetragonal structure. The annealing increased magnetic coercivity of the particles from zero to 772.4 Oe and their saturated magnetization from 15.04 to 27.95 emu/g.

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Periodical:

Advanced Materials Research (Volumes 712-715)

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233-236

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.712-715.233

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Online since:

June 2013

Authors:

Hui Ping Shao, Zhi Wang, Tao Lin, Sen Sun

Keywords:

Iron Carbonyl, Ron Nanoparticle, Thermal Decomposition

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