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Mesoporous Au-loaded Fe2O3 Nanoparticle Assemblies for Chemoselective Reduction of Nitroarenes

Published online by Cambridge University Press:  05 December 2014

Ioannis Papadas ,
Stella Fountoulaki ,
Ioannis N. Lykakis  and
Gerasimos S. Armatas
Ioannis Papadas
Affiliation:
Department of Materials Science and Technology, University of Crete, Heraklion 71003, Greece.
Stella Fountoulaki
Affiliation:
Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
Ioannis N. Lykakis
Affiliation:
Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
Gerasimos S. Armatas*
Affiliation:
Department of Materials Science and Technology, University of Crete, Heraklion 71003, Greece.
*
*Email: garmatas@materials.uoc.gr
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Abstract

In this article, we report the synthesis of unique mesoporous Au-loaded Fe2O3nanoparticle assemblies (Au/Fe2O3-NPAs) through a surfactant-assisted aggregating assembly method. The resulting network structure, which composed of small Au nanocrystals (ca. 5 nm) finely dispersed on surface of Fe2O3 NPs (ca. 6–7 nm), possesses a 3D open-pore structure with a BET surface area of 123 m2g-1 and uniform mesopores (∼4.5 nm). Au/Fe2O3-NPAs showed high catalytic activity and chemical stability for the selective transformation of nitroaromatic compounds into the corresponding amines, using 1,1,3,3-tetramethyl disiloxane as reducing agent at ambient conditions.

Keywords

nanostructurecatalyticself-assembly
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1749: Symposium JJ – 3D Mesoscale Architectures—Synthesis, Assembly, Properties and Applications , 2015 , mrsf14-1749-jj09-02
Copyright
Copyright © Materials Research Society 2014 

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References

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