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

Carta, D. and Navarra, G. and Falqui, A. and 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 (20). pp. 7886-7893. ISSN 2046-2069. (doi:https://doi.org/10.1039/C2RA01147F) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1039/C2RA01147F

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
Uncontrolled keywords: Bcc structure, Catalytic applications, Catalytic Chemical Vapour Deposition, Cell separation, Data storage, Extended X-ray absorption fine structures, Fe-Co alloy, FeCo nanoparticles, In-situ, Magnetic Carriers, Mesoporous Silica, Reduction treatment, Structural characterization, Chemical vapor deposition, Crystal structure, Drug delivery, Extended X ray absorption fine structure spectroscopy, Nanoparticles, Transmission electron microscopy, Nanomagnetics
Subjects: Q Science > QC Physics > QC176.8.N35 Nanoscience, nanotechnology
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Anna Corrias
Date Deposited: 16 Dec 2014 13:46 UTC
Last Modified: 04 Dec 2017 12:25 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46161 (The current URI for this page, for reference purposes)
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