Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 41, Pages 38205-38217Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b15088
Keywords
superhydrophobic coating; Zn-Fe alloy; electrodeposition; mechanical stability; corrosion protection
Funding
- National Natural Science Foundation of China [51703152, 31700689]
- Natural Science Foundation of Shanxi Province [201701D121044, 201701D121030]
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A simple, low-cost, fluorine-free, and ecofriendly method was applied to prepare a novel superhydrophobic Zn-Fe alloy coating on the surface of carbon steel. First of all, the Zn-Fe coating was obtained in an alkaline glycerol non-cyanide Zn-Fe plating solution. Then tetradecanoic acid was grafted onto the Zn-Fe coating by a coordination reaction, leading to a superhydrophobic surface. The water contact angle was up to 166 degrees and the sliding angle was 4 degrees. The as-prepared superhydrophobic coating exhibited high performances, such as strong adhesion to the substrate, impact resistance, self-cleaning, antifouling, and anticorrosion. Importantly, until now, few reports focus on the use of a non-cyanide alkaline glycerol plating bath for electrodeposition, which is green, composition-stable, and corrosion-free for devices. In addition, the growth mechanism of the Echinopsis multiplex-like hierarchical micro/nanostructure of the superhydrophobic surface was studied in detail.
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