The impact of cationic surfactants on the electrodeposition of Nickel/Graphene nano-sheet composite coatings on brass

Abstract

G RAPHENE nano-sheets (GNS) and cationic surfactants (S1&S2) are utilized for nickel composite coatings electrodeposition. They have a significant role in increasing the corrosion resistance of these coatings. A use of Nickel watt's bath with the addition of GNS as reinforcement material and different surfactants for nano-composite coatings deposition (Ni-GNS) are considered and the outcomes have been examined and discovered. Electrochemical techniques are utilized for examining the corrosion resistance for samples of nano-composite coatings in 0.6 M NaCl. The results suggest that the content of incorporated GNS increases with increasing the extent of GNS in plating bath. All of the Ni-GNS nano-composite layers in presence of surfactant have better corrosion resistance than the nickel coating. The best corrosion resistance value of about 64 kΩ cm 2 and relatively highest hardness value of 509 Hv for the composite coating electrode of Ni-GNS/with S1 are in comparison with the rest of nanocomposite coating electrodes or pure Ni coatings.

A development of novel Ni–P coating on anodised aluminium alloys for military industries applications in artificial sea water

“…Figure 7 displays the Tafel plots of aluminium alloys utilising the electroplating power supply technique. The corrosion potential E corr and corrosion current density I corr were appraised from the connection of the cathodic and anodic branches [24][25][26][27][28]. The corrosion parameters estimated from the Tafel plots are shown in Table 11 [29][30][31][32].…”