Community Research and Development Information Service - CORDIS


Spark Ablation for Nanotube Growth (SPANG) - Publishable Final Activity Report

Project ID: 505483
Funded under: FP6-NMP


SPANG refers to "Spark Ablation for Nanotube Growth". The goal of the project is to develop low-price synthetic routes for high-quality single-walled carbon nanotubes. The benchmark method for producing high-quality carbon nanotubes is laser ablation: graphite is evaporated in a laser beam, and using the right catalyst and the right process conditions, the carbon plasma condenses to fairly long, nearly defect-free single-walled carbon nanotubes and a small amount of by-products (amorphous carbon and graphitic particles). In the spark ablation method the laser beam is replaced by an electron beam form a spark discharge, which in much less expensive. Alternatively, high-quality nanotubes can be produced by evaporating graphite in an electric arc. The Arc-Jet method injects a hydrocarbon gas into the arc and thus provides similar gas flow conditions as the laser ablation method. Furthermore it can be set up as a continuous process (as opposed to batch processes in conventional nanotube synthesis).
In the SPANG project nanotubes are produced by three methods: Laser Ablation, Spark Ablation, and Arc-Jet. To control the quality of nanotubes a procedure has been standardized involving the combination of electron microscopy, Raman spectroscopy, optical absorption, X-ray diffraction, thermal gravimetry and electrical measurements. Based on the nanotubes produced and characterized in the project, devices have been prepared and their use in printed circuit bards has been studied (leads, resistors, capacitors).

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