Inhomogeneous composition of alloyed iron-platinum magnetic nanoparticles synthesized at low temperature

Chen, S., MacLaren, D. , Baker, R.T., Chapman, J., Lee, S., Cole-Hamilton, D.J. and Andre, P. (2011) Inhomogeneous composition of alloyed iron-platinum magnetic nanoparticles synthesized at low temperature. Journal of Materials Chemistry, 21, pp. 3646-3654. (doi:10.1039/C0JM03165H)

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Abstract

Aqueous low temperature pathways are attractive for synthesizing colloidal iron–platinum nanoparticles, which are promising candidates for applications ranging from data storage to biomedicine. Identifying the inhomogeneous composition of the products as the major hurdle of such syntheses, we present and discuss data including synthesis time, iron precursors and reducing agent aiming at quantifying and understanding the effect of the ionic precursor and the reducing agent on the composition of alloyed nanomaterials. We demonstrate that the nanoparticle composition could be modulated by using faster reducing agents as well as iron(II) salts which are less susceptible to base hydrolysis than iron(III) salts. The strategy we highlight here should be applicable to other alloy nPs fabricated by low temperature co-reduction in aqueous solution.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Chapman, Professor John and MacLaren, Dr Donald
Authors: Chen, S., MacLaren, D., Baker, R.T., Chapman, J., Lee, S., Cole-Hamilton, D.J., and Andre, P.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Materials Chemistry
Publisher:Royal Society of Chemistry
ISSN:0959-9428
ISSN (Online):1364-5501
Published Online:28 January 2011

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