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Characterization of La2Mo2O9 Aerogels Synthesized by the Sol–Gel Chemistry and High-Temperature Supercritical Drying

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Abstract:

A lanthanum molybdate aerogel, La2Mo2O9, with a mean particle size in the range from 100 to 150 nm, was synthesized by the sol–gel method and high-temperature supercritical drying. In this communication it is shown that control over the crystallinity of product aerogels can be exercised by changing the amount of water used for hydrolysis and the temperature for subsequent heat treatment. Methoxy species are formed on the surface during synthesis. The new aerogel may prove useful as a catalyst for the oxidation of hydrocarbons to oxygenated organic compounds.

Keywords: AEROGEL; LANTHANUM MOLYBDATE; SOL-GEL; SUPERCRITICAL DRYING; SYNTHESIS

Document Type: Short Communication

DOI: http://dx.doi.org/10.1166/jnn.2005.163

Publication date: October 1, 2005

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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