Comparison of Diatoms, Exfoliated Graphite, Single-Wall Nanotubes, Multiwall Nanotubes, and Silica for the Synthesis of the Nanomagnet Mn12

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Abstract:

We have completed a preliminary series of experiments that compare the silicate shells of the marine organism diatoms to Single-Wall NanoTubes (SWNT), Multi-Wall NanoTubes (MWNT), Exfo- liated Graphite (EG), and silica as templates for producing nanostructures of the manganese acetate cluster Mn12 (Mn12 [CH3 (COO)16 (H2 O)4 O12 ] ˙ 2CH3 COOH ˙ 4H2 O). Mn12 exhibits magnetic properties because of the molecular arrangement within the cluster and exhibits no exchange couplings between the individual clusters. Data from scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), and laser diffraction are discussed in terms of research that can expand the use of diatoms and other materials as templates for nanostructures.

Keywords: DIATOMS; EXFOLIATED GRAPHITE; MULTI-WALL NANOTUBES (MWNT); SILICA BEADS; SINGLE-WALL NANOTUBES (SWNT)

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2005.015

Publication date: January 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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