Abstract
Oxygen plasma treated multi-walled carbon nanotubes (MWCNTs) have beendecorated with gold nanoclusters by thermal evaporation. Transmission electronmicroscopy (TEM) shows that the nature and extent of gold coverage can be varied bysimultaneously changing the parameters used for the plasma treatment and the goldevaporation time. The evaporated gold clusters on oxygen plasma treated MWCNTshave a more dense distribution than the clusters evaporated on as-synthesizedMWCNTs. Analyses of the valence band and the core levels by x-ray photoelectronspectroscopy (XPS) suggest poor charge transfer between the gold clusters and theMWCNTs.
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