Superhydrophobic Al Surfaces with Properties of Anticorrosion and Reparability
Zhan, Zhibing1; Li, Zihao1; Yu, Zhi2; Singh, Subhash1,2; Guo, Chunlei1,2
Source PublicationACS OMEGA
Corresponding AuthorGuo, Chunlei(
AbstractAluminum (Al) is one of the most widely used metals for industry and household applications, but its longevity is limited by its tendency for corrosion. In this work, we report a facile method to fabricate superhydrophobic Al surfaces that have excellent anti-corrosion effect. The surface is obtained by etching Al in CuCl2 solution to form the micro-nano-pit surface texture followed by lowering its surface energy in an aqueous ethanol solution of stearic acid. The superhydrophobic Al surfaces show water contact angles as high as 165 degrees. Electrochemical tests demonstrate that the corrosion rate of the Al surface drops by 94.5% after the superhydrophobic modification (corrosion current density lowers from 1.11 x 10(-4) to 6.10 x 10(-6) A cm(-2)). We also show that the superhydrophobic surface will protect the Al from corrosion even under a very harsh environment. In addition, our method is scalable and the superhydrophobic surfaces exhibit excellent flexible and reparable properties. This anti-corrosive superhydrophobic Al surface will prolong Al in its broad usage.
Keywordair Chemistry
WOS KeywordAIR
Indexed BySCI
Funding ProjectBill & Melinda Gates Foundation[OPP1119542] ; US Army Research Office[W911NF-15-1-0319] ; National Science Foundation[1701163] ; National Science Foundation[1722169]
Funding OrganizationBill & Melinda Gates Foundation ; US Army Research Office ; National Science Foundation
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000454244600110
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorGuo, Chunlei
Affiliation1.Univ Rochester, Inst Opt, Rochester, NY 14627 USA
2.Changchun Inst Opt Fine Mech & Phys CIOMP, Changchun 130033, Jilin, Peoples R China
Recommended Citation
GB/T 7714
Zhan, Zhibing,Li, Zihao,Yu, Zhi,et al. Superhydrophobic Al Surfaces with Properties of Anticorrosion and Reparability[J]. ACS OMEGA,2018,3(12):17425-17429.
APA Zhan, Zhibing,Li, Zihao,Yu, Zhi,Singh, Subhash,&Guo, Chunlei.(2018).Superhydrophobic Al Surfaces with Properties of Anticorrosion and Reparability.ACS OMEGA,3(12),17425-17429.
MLA Zhan, Zhibing,et al."Superhydrophobic Al Surfaces with Properties of Anticorrosion and Reparability".ACS OMEGA 3.12(2018):17425-17429.
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