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Nanocrystalline zeolites and zeolite structures: Synthesis, characterization, and applications

Larsen, Sarah C. (2007) Nanocrystalline zeolites and zeolite structures: Synthesis, characterization, and applications. JOURNAL OF PHYSICAL CHEMISTRY C, 111 (50). pp. 18464-18474.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp074980m

Abstract

Nanocrystalline zeolites are porous nanomaterials with crystal sizes of less than 100 nm that possess unique external and internal surface reactivity. Nanocrystalline zeolites, such as silicalite, ZSM-5 and Y, were synthesized and extensively characterized by powder X-ray diffraction, nitrogen adsorption isotherms, dynamic light scattering, and electron microscopy. Spectroscopic characterization of the nanocrystalline zeolites by FTIR and solid-state NMR provided detailed structural information about internal and external surface sites. The nanocrystalline zeolites were also used as building blocks to form larger, hollow zeolite structures with encapsulated metal or organic species. The surface properties of nanocrystalline zeolites and hollow zeolite structures were tailored through functionalization of surface silanol groups. Applications of nanocrystalline zeolites and zeolite structures in the selective catalytic reduction of NO, and the photoreduction of Cr(VI) to Cr(III) in aqueous solution were investigated. The unique properties and reactivity of nanocrystalline zeolites and the potential for future applications of these materials will also be discussed.

Item Type:Article
Uncontrolled Keywords:nanocrystalline zeolites - microscopy - spectroscopic characterization
Subjects:Analytical Science > Microscopy and probe methods
Material Science > Nanostructured materials
ID Code:5930
Deposited By:IoN
Deposited On:01 Sep 2009 12:31
Last Modified:01 Sep 2009 12:31

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