Synthesis of Nickel-Carbon Nanohorn Composite Films by an Electrodeposition Technique

In this work, electrodeposition of nickel-single walled carbon nanohorns composite is obtained from a sulfamate bath. Electrodeposition of nickel-nanohorn composites is carried out from a sulfamate bath containing up to 2 g/l of dispersed single walled nanohorns with diameter 30 to 50 nm. Deposits with embedded nanohorns, homogeneously dispersed in metal matrix, are obtained. Structure of the deposits and contents of carbon nanohorns particles in these layers were investigated with respect to the possibility of agglomeration of SWNH particles and bath composition (concentration of SWNH in the electrolyte). Morphology of the coatings and the effects of codeposited particles on metal matrix structure are also reported. Microhardness of the composites has been investigated: Martens hardness is highly influenced by the incorporation of particles.