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Nanocrystalline Metal/Carbon Composites Produced by Supersonic Cluster Beam Deposition

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In this work we show that supersonic cluster beam deposition is a viable method for the synthesis of nanocrystalline metal/carbon composites. By assembling carbon and metallic clusters seeded in a supersonic beam, we have grown films consisting of metal nanoparticles embedded in a nanostructured carbon matrix. Samples containing 3 d transition metals (Ti, Ni) and noble metals (Au, Pd, Pt) with different metal abundances, particle size and dilution have been characterized by transmission electron microscopy. The influence of different metals on the structure of the carbon matrix has been investigated. Spatially resolved ultraviolet photoemission electron spectroscopy showed substantial surface oxidation of 3 d transition metal clusters. On a micrometric scale, the spatial distribution of the metallic nanoparticles appeared to be homogeneous.
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Keywords: METAL/CARBON NANOCOMPOSITES; NOBLE METAL CLUSTERS; SPATIALLY RESOLVED ULTRAVIOLET PHOTOEMISSION SPECTROSCOPY; SUPERSONIC CLUSTER BEAM DEPOSITION; TRANSMISSION ELECTRON MICROSCOPY

Document Type: Research Article

Publication date: 2005-07-01

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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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