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Title: Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning
Authors: He, Shijun
Shi, Jiakun
Huang, Jianying
Hu, Jun
Lai, Yuekun
Chen, Zhong
Keywords: Engineering::Materials
Issue Date: 2021
Source: He, S., Shi, J., Huang, J., Hu, J., Lai, Y. & Chen, Z. (2021). Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning. Chemical Engineering Journal, 416, 127768-.
Project: SERC 1528000048 
Journal: Chemical Engineering Journal 
Abstract: A hierarchical micro-/nanostructure, consisting of nano-sized Fe2O3 needles vertically grown on the {1 1 1} facets of micro-octahedral Fe3O4 particles, has been successfully prepared on the surface of N80 steel using hydrothermal treatment followed by annealing. The nanoneedles were transformed from nanoparticles on the micro-octahedral facets under the influence of mixed acetone and acetic acid gas atmosphere, and the length of nanoneedles can be controlled by the annealing time. The superhydrophobic Fe2O3/Fe3O4 composite surface with water contact angle (WCA) of 157.3° and sliding angle (SA) of 8.1° was obtained after decorated with stearic acid. The influence of the annealing time on the surface morphology and hydrophobicity was explored and optimized. The superhydrophobic surface displays great self-cleaning and anti-corrosion performances with good mechanical robustness. This method opens a new venue towards preparing micro-nanostructures on the surface of metallic materials for enhanced anti-corrosion and self-cleaning applications.
ISSN: 1385-8947
DOI: 10.1016/j.cej.2020.127768
Rights: © 2020 Elsevier B.V. All rights reserved. This paper was published in Chemical Engineering Journal and is made available with permission of Elsevier B.V.
Fulltext Permission: embargo_20230722
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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