Effect of Powder Addition and Multi Bath on the Corrosion Behavior of Nano Zinc Oxide Layer

Articles in Press

Document Type : Research Paper

Authors

1 Department of Production Engineering & Metallurgy, University of Technology- Iraq.

2 Department of Chemical Engineering, University of Technology- Iraq.

3 Department of Production Engineering & Metallurgy, University of Technology- Iraq.

Abstract

This study investigates the formation of nanocomposites on zinc substrates through the electrochemical process of zinc foil in sulfuric and phosphoric acid at room temperature. After immersing pure Zn into a solution containing 3.6g CuO in 15% H2SO4, ZnO and CuO microstructures were created.XRD and AFM techniques were employed to; characterize the resulting thin films and 3-D microstructures, The (CuO-ZnO) composite had nanoscale size and an average of 68.78932nm, with ZnO having a wurtzite and zincite structure, and CuO crystals having a tenorite structure. This study discusses the effects of the developments and modification of the CuO nanoparticle in a multi-bath (using two processes) as stabilizers and surfactants on the Zn morphology. The deposits with added CuO had larger particle sizes and thicker deposits,while the multi-bath in H3PO4 resulted in a more compact, thicker, and dense structure on the surface. The wettability property of samples were characterized by measuring the water contact angle of surfaces. The resulting of surface modification with H3PO4 and CuO showed the contact angle characteristics of being hydrophobic and hydrophilic due to their special surface energy of phases and the incorporation of a nano-microstructure morphology. Noticeable, stable hydrophobicity of the oxide coating with a contact angle of (58.2°) was obtained for the (CuO-ZnO) microstructure after modification. Electrochemical behavior measurements showed that using multiple phases resulted in a protective, adherent, uniform, and plate-like morphology of corrosion products, improving resistance for ZnO, CuO, CuO-P, and ZnO-P phases, and influencing P ion content.

Keywords

Journal of Nanostructures

Articles in Press, Accepted Manuscript
Available Online from 29 February 2024

Files

Share

How to cite

Statistics