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Issue 7, 2013
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Magnetically-driven selective synthesis of Au clusters on Fe3O4 nanoparticles†

Víctor Sebastian,*ab   M. Pilar Calatayud,c   Gerardo F. Goyac  and  Jesus Santamaria*ab  
Author affiliations

* Corresponding authors

a Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain
E-mail: Jesus.Santamaria@unizar.es, victorse@unizar.es

b CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain

c Department of Condensed Matter Physics, Aragon Institute of Nanoscience (INA), University of Zaragoza, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain

Abstract

A novel procedure to direct the local synthesis of gold clusters on Fe3O4 nanocrystals by means of alternating magnetic fields (AMFs) is demonstrated. This process allows growing gold selectively onto the heated magnetite surface, while keeping the synthesis solution comparatively cold. Sequential AMF cycles allowed fine-tuning the amount of gold on the magnetite surfaces.

Graphical abstract: Magnetically-driven selective synthesis of Au clusters on Fe3O4 nanoparticles

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Article information

https://doi.org/10.1039/C2CC37355F
Submitted
08 Oct 2012
Accepted
28 Nov 2012
First published
29 Nov 2012
Chem. Commun., 2013,49, 716-718
Article type
Communication
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Magnetically-driven selective synthesis of Au clusters on Fe3O4 nanoparticles

V. Sebastian, M. Pilar Calatayud, G. F. Goya and J. Santamaria, Chem. Commun., 2013, 49, 716
DOI: 10.1039/C2CC37355F

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