ABSTRACT

Superhydrophobic films were successfully designed for a copper substrate using potentiostatic deposition of Ni and Ni-graphene composite followed by treatment with stearic acid (SA). A scanning electron microscope was used to examine the surface morphology of the prepared superhydrophobic films, and the results revealed that both Ni-SA and Ni-graphene-SA films have micro-nano structures. FTIR measurements revealed that the copper substrates had been coated with Ni-SA and Ni-graphene-SA films. The Ni-graphene-SA film has the highest chemical stability and mechanical abrasion resistance. Potentiodynamic polarization and electrochemical impedance spectroscopy results indicated that the formulated superhydrophobic films on the copper substrate have high corrosion resistance in 0.5 M NaCl.

摘要

使用 Ni 和 Ni-石墨烯复合材料的恒电位沉积，然后用硬脂酸 (SA) 处理，成功地为铜基板设计了超疏水薄膜。使用扫描电子显微镜观察制备的超疏水薄膜的表面形貌，结果表明 Ni-SA 和 Ni-graphene-SA 薄膜均具有微纳米结构。FTIR 测量表明，铜基板已涂覆有 Ni-SA 和 Ni-graphene-SA 薄膜。Ni-graphene-SA薄膜具有最高的化学稳定性和机械耐磨性。动电位极化和电化学阻抗谱结果表明，在铜基材上配制的超疏水膜在 0.5 M NaCl 中具有高耐腐蚀性。