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Structural characterization of FeCo alloy nanoparticles embedded in SBA-16 and their catalytic application for carbon nanotubes production

Carta, Daniela, Navarra, G, Falqui, A, Kónya, Z and Corrias, A (2012) Structural characterization of FeCo alloy nanoparticles embedded in SBA-16 and their catalytic application for carbon nanotubes production RSC Advances (2). pp. 7886-7893.

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Abstract

The formation of FeCo alloy nanoparticles embedded in a highly ordered 3D cubic mesoporous silica matrix (SBA-16) was thoroughly studied using several techniques. In particular, the selectivity of Extended X-ray absorption fine structure and X-ray absorption near-edge structure spectroscopy at both the Fe and Co K-edges allowed us to determine that before reduction treatment Fe and Co are present in a poorly crystalline environment, while after reduction treatment FeCo nanoparticles with the typical bcc structure are formed. FeCo alloy nanoparticles are used in several applications: biomedical (magnetic carriers for drug delivery and cell separation), magnetic (data storage) and catalytic. In this work, FeCo nanoparticles formed in situ in the SBA-16 matrix were used for the production of carbon nanotubes by catalytic chemical vapour deposition. Transmission electron microscopy indicates that good quality multi-walled carbon nanotubes are obtained.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
NameEmailORCID
Carta, Danielad.carta@surrey.ac.ukUNSPECIFIED
Navarra, GUNSPECIFIEDUNSPECIFIED
Falqui, AUNSPECIFIEDUNSPECIFIED
Kónya, ZUNSPECIFIEDUNSPECIFIED
Corrias, AUNSPECIFIEDUNSPECIFIED
Date : 1 August 2012
Identification Number : 10.1039/C2RA01147F
Depositing User : Jane Hindle
Date Deposited : 31 Aug 2017 09:25
Last Modified : 31 Aug 2017 09:25
URI: http://epubs.surrey.ac.uk/id/eprint/842096

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