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Modification of SiO2 Nanowires with Metallic Nanocrystals from Supercritical CO2

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Abstract:

Through hydrogen reduction of metal precursors in supercritical CO2, Cu, and Pd, nanocrystals were deposited onto SiO2 nanowires to form different types of nanostructured materials, including nanocrystal-nanowire, spherical aggregation-nanowire, shell-nanowire composites, and "mesoporous" metals supported by the framework of nanowires. This supercritical fluid deposition technique is an attractive approach for modifying nanowires because of its generality and simplicity; the modified nanowires could be useful as catalysts and for further fabrication of multifunctional composites.

Keywords: CARBON NANOTUBES; CATALYSTS; METALLIC NANOCRYSTALS; NANOCRYSTALS; SIO2 NANOWIRES; SUPERCRITICAL FLUID DEPOSITION

Document Type: Short Communication

DOI: http://dx.doi.org/10.1166/jnn.2004.042

Publication date: January 1, 2004

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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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