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Fabrication And Material Characterization Of Copper And Copper-Cnt Micropillars, Siavash Ghanbari, Jeff Darabi
Fabrication And Material Characterization Of Copper And Copper-Cnt Micropillars, Siavash Ghanbari, Jeff Darabi
SIUE Faculty Research, Scholarship, and Creative Activity
In this work, copper micropillars and copper-carbon nanotube (CNT) composite micropillars were fabricated by incorporating an electrodeposition technique with a xurography process. In order to disperse carbon nanotubes in copper-CNT micropillars, various amounts of CNTs were added to the electroplating bath. Surface morphology and phase characterization of copper micropillars and copper-CNT composite micropillars were analyzed by optical microscopy and X-ray diffraction. In addition, the corrosion resistance (Rp) of a bare copper substrate, copper micropillars, and optimum copper-CNT micropillars were studied by electrochemical impedance spectroscopy (EIS) technique in a 3.5 wt. % sodium chloride. Experimental results yielded a corrosion …
Electrodeposition Of Nickel Nanowires And Nanotubes Using Various Templates, Asli Ertan, Surendra N. Tewari, Orhan Talu
Electrodeposition Of Nickel Nanowires And Nanotubes Using Various Templates, Asli Ertan, Surendra N. Tewari, Orhan Talu
Chemical & Biomedical Engineering Faculty Publications
Nickel nanotubes and nanowires are grown by galvanostatic electrodeposition in the pores of 1000, 100, and 15 nm polycarbonate as well as in anodised alumina membranes at a current density of 10 mA cm-2. The effects of pore size, porosity, electrodeposition time, effective current density, and pore aspect ratio are investigated. Nickel nanotube structures are obtained with 1000 nm pore size polycarbonate membrane without any prior treatment method. At the early stages of electrodeposition hollow nickel nanotubes are produced and nanotubes turn into nanowires at longer depositon times. As effective current density accounting for the membrane porosity decreases, the axial …