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Nanocasted Synthesis of Mesoporous Metal Oxides and Mixed Oxides from Mesoporous Cubic (Ia3d) Vinylsilica

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Abstract:

Mesoporous metal oxides and mixed oxides, such as NiO, CeO2, Cr2O3, Fe2O3, Mn2O3, NiFe2O4 and CexZr1−xO2 (x = 0.8 and 0.6) have been synthesized by nanocasting from mesoporous cubic (Ia3d) vinyl-functionalized silica (vinylsilica). Their structural properties were characterized by XRD, TEM, N2-sorption and Raman spectra. Thus-prepared mesoporous materials possess a high BET surface area (110–190 m2g−1), high pore volume (0.25–0.40 cm3g−1) and relatively ordered structures. The catalytic properties of Cr2O3 were tested in the oxidation of toluene. The mesoporous Cr2O3 exhibits unusually high catalytic activity in the complete oxidation of toluene as compared with commercial Cr2O3.

Keywords: CATALYTIC OXIDATION OF TOLUENE; MESOPOROUS METAL OXIDES; NANOCASTING

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2008.226

Publication date: November 1, 2008

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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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