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Formation of crystalline sodium hydride nanoparticles encapsulated within an amorphous framework

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Sartbaeva, Asel, Wells, Stephen A., Sommariva, M., Lodge, M. J. T., Jones, M. O., Ramirez-Cuesta, A. J., Li, G. and Edwards, P. P. (2010) Formation of crystalline sodium hydride nanoparticles encapsulated within an amorphous framework. Journal of Cluster Science, Vol.21 (No.3). pp. 543-549. doi:10.1007/s10876-010-0336-4

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Official URL: http://dx.doi.org/10.1007/s10876-010-0336-4

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Abstract

A major research theme to emerge in the science and technology of materials is the incorporation of nanostructure. into the functionality of properties. Such nanostructured materials can offer distinct advantages over bulk materials, partly because the physical properties of the material itself can vary in a tunable, size-dependent fashion. Of course, in addition, nanoparticles offer a greatly increased surface area for chemical reaction. Typical methods for nanoparticle synthesis include: reaction in the liquid phase using the sot gel approach and mechanical ball-milling of the bulk material; both of these approaches are some. what problematic for the preparation of reactive nanostructured materials which are sensitive to air and/or Moisture. We report here the formation of crystalline nanoparticles of sodium hydride encapsulated in a host amorphous silica gel matrix. These nanoparticles are formed by in situ hydrogenation of a precursor material Na loaded silica gel-under mild conditions. The resulting material is considerably less pyrophoric and less air-sensitive than the bulk hydride. We anticipate that this formation method of in situ modification of reactive precursor material may have wide applications.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Physics
Faculty of Science > Centre for Scientific Computing
Journal or Publication Title: Journal of Cluster Science
Publisher: Springer New York LLC
ISSN: 1040-7278
Official Date: September 2010
Dates:
DateEvent
September 2010Published
Volume: Vol.21
Number: No.3
Number of Pages: 7
Page Range: pp. 543-549
DOI: 10.1007/s10876-010-0336-4
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Leverhulme Trust (LT), Glasstone Research Fellowship, Engineering and Physical Sciences Research Council (EPSRC)

Data sourced from Thomson Reuters' Web of Knowledge

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