Abstract
In a DC arc-plasma method, in deionized water, used to synthesize multi-walled carbonnanotubes (MWCNTs), hard deposits collected on the surface of the cathode are the mainproduct rich in MWCNTs and they are easier to collect than the products collected inwater. The top surface of the deposit bestrewed with column-shaped clumps also gives ahint as to potential applications of the field emission. In order to increase the yield of thedeposits on the cathode surface, different parameters are used to investigate theirformation. An auto-formed chamber between two electrodes during the arc discharge isfound to have a determining effect on the formation of deposits on the cathode surface.Deposits are examined using SEM and TEM to investigate their structure and the CNTs inthem.
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