Composition study of FePt nanoparticles synthesized from modified polyol process

K Chokprasombat; P Harding; C SirisathitkulP MuthitamongkolS Pinitsoontorn

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Composition study of FePt nanoparticles synthesized from modified polyol process

机译：Composition study of FePt nanoparticles synthesized from modified polyol process

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Five different conditions for modified polyol processes using iron(III) acetylacetonate and platinum(II) acetylacetonate as starting materials reveal significantly different products in terms of composition. The initial Fe:Pt molar ratio is not retained in the final products and Pt-rich nanoparticles are obtained from 1:1 molar ratio of Fe:Pt sources. The imbalance between Fe and Pt indicate that the nanoparticles formation can be explained by the heterocoagulation mechanism rather than the binary nucleation model. The increase in refluxing time and initial Fe:Pt molar ratio improved the amount of Fe in nanoparticles. However, the highest molar ratio of 3:1 apparently affected the uniformity of particles. The co-existence of iron oxide and Pt-rich nanoparticles is clearly evident in the case of 3:1 molar ratio combined with 1,2 hexadecanediol as a reducing agent.

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《Indian journal of engineering and materials sciences》 |2012年第5期|338-342|共5页
作者
K Chokprasombat; P Harding; C SirisathitkulP MuthitamongkolS Pinitsoontorn;
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作者单位

Molecular Technology Research Unit, School of Science, Walailak University, Nakhon Si Thammarat, 80161, Thailand;

National Metal and Materials Technology Center, Thailand Science Park, Klong Luang District, Pathumthani, 12120, Thailand;

Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand;

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正文语种英语
中图分类工程材料学;
关键词
Magnetic nanoparticle; FePt; Modified polyol process; Metal acetylacetonate; Molar ratio;

Composition study of FePt nanoparticles synthesized from modified polyol process

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