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MM: Fachverband Metall- und Materialphysik

MM 33: Nanomaterials II - Tubular nanostructures

MM 33.1: Vortrag

Dienstag, 1. April 2014, 15:45–16:00, IFW A

Synthesis, characterization and electrical properties of copper coated multi-walled carbon nanotubes — •Abdelwahab Hassan, Silke Hampel, Eslam Ibrahim, Christian Hess, Albrecht Leonhardt, and Bernd Büchner — Leibniz-Institute for Solid State and Materials Research (IFW-Dresden), D-01171 Dresden, Germany

In the recent years, carbon nanotubes (CNTs) have received considerable attention as new materials for a variety of potential applications due to their interesting properties. As well as, CNT- can be reinforced metal matrix composites (MMCs).The coating of CNTs with metal and metal oxide is fundamentally important for applications of CNTs in nanoelectronic device, gas sensor and composite materials, etc. As well as coating of CNTs lead to a significant improvement of interfacial bond between CNTs and metal matrix. Therefore, in the present contribution, a novel route to synthesize copper/multi-walled carbon nanotubes (MWCNTs) was developed using a chemical electroless plating process after the radio frequency (RF) plasma treatment of the CNTs. Plasma treatment of MWCNTs surface was carried out in various gaseous atmospheres, namely Ar, H2 and N2 to improve copper adhesion. N2 plasma treatment showed better surface activation of the MWCNTs. This study investigated the effect of plasma treatment time, flow rate and RF power to improve the copper coating. The morphology of MWCNTs were studied by TEM, SEM, Raman spectroscopy, XPS as well as X-ray diffraction (XRD). The measurements of electrical conductivity of uncoated and copper coated MWCNTs were measured by four-point method in temperature range 300-573 K.