Micro/nanostructured ZnO-based superhydrophobic steel surface with enhanced corrosion protection

  • Nguyen Thi Phuong Nhung Petrovietnam University
  • Nguyen Thi Ngoc Tien Petrovietnam University
  • Nguyen Hoang Luong Petrovietnam University
  • Tran Thu Hang Petrovietnam Manpower Training College
  • Nguyen Van Kiet Petrovietnam University
  • Nguyen Phan Anh Petrovietnam University
Keywords: Superhydrophobic, ZnO electrodeposition, micro and nanostructures, corrosion resistance

Abstract

This paper presents a simple process of fabricating a superhydrophobic carbon steel surface with high water repellence and good corrosion resistance. The steel surface was covered by thin ZnO layers via various methods of sol-gel method, hydrothermal synthesis, and electrochemical deposition, then further functionalised with methyltrichlorosilane. Morphological features observed by a scanning electron microscope (SEM) show that ZnO layers are composed of micro/nanostructures. Furthermore, the chemical composition of these films has been analysed by an energy dispersive X-ray spectroscopy (EDX). An optimum experimental condition, based on the type of Zn deposition method, has been obtained to provide superhydrophobic properties with a water contact angle of 152 ± 2o. In a 3.5 wt% NaCl solution, the corrosion resistance properties of the superhydrophobic ZnO-coated steel are found to be very good with an anti-corrosion efficiency of 93.12%.

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Published
2022-07-18
How to Cite
Nguyen, T. P. N., Nguyen, T. N. T., Nguyen, H. L., Tran, T. H., Nguyen, V. K., & Nguyen, P. A. (2022). Micro/nanostructured ZnO-based superhydrophobic steel surface with enhanced corrosion protection. Petrovietnam Journal, 6, 59 - 66. https://doi.org/10.47800/PVJ.2022.06-07
Section
Articles