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Investigating the mesostructure of ordered porous silica nanocomposites by transmission electron microscopy techniques

Bullita, S, Piludu, M, Falqui, A, Carta, Daniela, Corrias, A and Casula, MF (2014) Investigating the mesostructure of ordered porous silica nanocomposites by transmission electron microscopy techniques AIP Conference Proceedings X International Symposium on SiO2, Advanced Dielectrics and Related Devices (SIO2014), 1624 (10). pp. 10-14.

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Abstract

Nanocomposites made out of FeCo alloy nanocrystals supported onto pre-formed mesoporous ordered silica which features a cubic arrangement of pores (SBA-16) were investigated. Information on the effect of the nanocrystals on the mesostructure (i.e. pore arrangement symmetry, pore size, and shape) were deduced by a multitechnique approach including N2 physisorption, low angle X-ray diffraction, and Transmission electron microscopy. It is shown that advanced transmission electron microscopy techniques are required, however, to gain direct evidence on key compositional and textural features of the nanocomposites. In particular, electron tomography and microtomy techniques make clear that the FeCo nanocrystals are located within the pores of the SBA-16 silica, and that the ordered mesostructure of the nanocomposite is retained throughout the observed specimen.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
NameEmailORCID
Bullita, SUNSPECIFIEDUNSPECIFIED
Piludu, MUNSPECIFIEDUNSPECIFIED
Falqui, AUNSPECIFIEDUNSPECIFIED
Carta, Danielad.carta@surrey.ac.ukUNSPECIFIED
Corrias, AUNSPECIFIEDUNSPECIFIED
Casula, MFUNSPECIFIEDUNSPECIFIED
Date : 2014
Identification Number : 10.1063/1.4900450
Copyright Disclaimer : © 2014 AIP Publishing LLC
Depositing User : Jane Hindle
Date Deposited : 04 Sep 2017 11:24
Last Modified : 04 Sep 2017 11:24
URI: http://epubs.surrey.ac.uk/id/eprint/842153

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