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Nickel-based nanocrystals dispersed on SBA-16 gels: Synthesis and structural characterization

Carta, D., Loche, D., Casula, M.F., Oláh, N., Olasz, D., Corrias, A. (2014) Nickel-based nanocrystals dispersed on SBA-16 gels: Synthesis and structural characterization. Journal of Non-Crystalline Solids, 401 . pp. 134-138. ISSN 0022-3093. (doi:10.1016/j.jnoncrysol.2014.01.010) (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)

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. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.010

Abstract

Porous monoliths of nanocomposites containing Ni (5 wt.%) and FeNi (5 wt.%) nanoparticles dispersed on an SBA-16 type matrix were prepared following a templated-gelation method based on the sol-gel process. The nanocomposites were characterized by energy dispersive X-ray spectroscopy, N2 physisorption at 77 K, X-ray diffraction and transmission and scanning electron microscopy. In particular, N2 physisorption and transmission electron microscopy analysis show that the ordered mesoporous structure and the high surface area of all the samples are preserved after calcination in air at 500 °C and also after reduction in H2 flux at 800 °C, indicating a very high thermal stability of the samples. As a result of the effective dispersion of the nanophase within the porous texture, nanocomposites containing Ni nanocrystals with an average size of 6 nm homogeneously dispersed within the pores of the amorphous silica matrix were obtained. © 2014 Elsevier B.V.

Item Type: Article
DOI/Identification number: 10.1016/j.jnoncrysol.2014.01.010
Uncontrolled keywords: Mesoporous silica SBA-16, Nanocomposites, Sol-gel, Gelation, Nanocrystals, Nickel, Physisorption, Scanning electron microscopy, Sol-gel process, Transmission electron microscopy, X ray diffraction, X ray spectroscopy, Amorphous Silica matrix, Effective dispersion, Energy dispersive X ray spectroscopy, High thermal stability, Mesoporous silica SBA-16, Ordered mesoporous structures, Structural characterization, Transmission electron, Nanocomposites
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: 15 Dec 2014 17:02 UTC
Last Modified: 29 May 2019 13:56 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46140 (The current URI for this page, for reference purposes)
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