NDLI: Formation of Crystalline Sodium Hydride Nanoparticles Encapsulated Within an Amorphous Framework

Content Provider	Springer Nature Link
Author	Sartbaeva, A. Wells, S. A. Sommariva, M. Lodge, M. J. T. Jones, M. O. Ramirez Cuesta, A. J. Li, G. Edwards, P. P.
Copyright Year	2010
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 sol–gel approach and mechanical ball-milling of the bulk material; both of these approaches are somewhat 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.
Starting Page	543
Ending Page	549
Page Count	7
File Format	PDF
ISSN	10407278
Journal	Journal of Cluster Science
Volume Number	21
Issue Number	3
e-ISSN	15728862
Language	English
Publisher	Springer US
Publisher Date	2010-07-15
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sodium hydride nanoparticles Encapsulated Silica gel framework In situ hydrogenation Inorganic Chemistry Physical Chemistry Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Biochemistry Condensed Matter Physics Materials Science

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