title: Fabrication of ZIF-8@SiO2Micro/Nano Hierarchical Superhydrophobic Surface on AZ31 Magnesium Alloy with Impressive Corrosion Resistance and Abrasion Resistance.
abstract: Superhydrophobic coatings are highly promising for protecting material surfaces and for wide applications. In this study, superhydrophobic composites, comprising a rhombic-dodecahedral zeolitic imidazolate framework (ZIF-8@SiO2), have been manufactured onto AZ31 magnesium alloy via chemical etching and dip-coating methods to enhance stability and corrosion resistance. Herein, we report on a simple strategy to modify hydrophobic hexadecyltrimethoxysilan (HDTMS) on ZIF-8@SiO2to significantly improve the property of repelling water. We show that various liquids can be stable on its surface and maintain a contact angle higher than 150°. The morphologies and chemical composition were characterized by means of scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FI-IR). In addition, the anticorrosion and antiattrition properties of the film were assessed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization and HT, respectively. Such a coating shows promising potential as a material for large-scale fabrication.
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Cuiqing
authors.initials: C
authors.lastname: Wu
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Liu
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Rongrong
authors.initials: R
authors.lastname: Chen
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Jingyuan
authors.initials: J
authors.lastname: Liu
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Hongsen
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Rumin
authors.initials: R
authors.lastname: Li
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Kazunobu
authors.initials: K
authors.lastname: Takahashi
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Peili
authors.initials: P
authors.lastname: Liu
authors.affiliation: Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, and ‡Institute of Advanced Marine Material, Harbin Engineering University , Harbin 150001, People's Republic of China.
authors.forename: Jun
authors.identifier: http://orcid.org/0000-0002-5192-0574
authors.initials: J
authors.lastname: Wang
keywords: AZ31 magnesium alloy; ZIF-8@SiO2; antiattrition; corrosion resistance; superhydrophobic