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Self-Assembly of Colloidal γ-Fe2O3 and FePt Nanoparticles on Carbon Nanotubes by Dip-Coating Process

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Abstract:

The chemically synthesized colloidal γ-Fe2O3 and FePt nanoparticles (NPs), with the diameter of ∼10 nm and ∼4 nm, respectively, adsorbed and assembled on the surface of carbon nanotubes (CNTs) by dip-coating process, through van der Waals interaction between NP and CNT. Repeating the steps of dip-coating and removing the surfactants from NPs significantly increased the amount of NPs as forming multilayers on the CNT. In addition, the electrochemical activities of FePt/CNTs for methanol oxidation were investigated for the potential application as catalysts of direct methanol fuel cells.

Keywords: ADSORPTION; CARBON NANOTUBES; DIP-COATING; IRON OXIDE; IRON PLATINUM; NANOPARTICLE

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.4684

Publication date: February 1, 2012

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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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