Development of mechanically robust and anticorrosion slippery PEO coating with metal–organic framework (MOF) of magnesium alloy
DC Field | Value | Language |
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dc.contributor.author | Telmenbayar, L. | - |
dc.contributor.author | Gopal, Ramu A. | - |
dc.contributor.author | Yang, D. | - |
dc.contributor.author | Choi, D. | - |
dc.date.accessioned | 2023-01-25T02:41:19Z | - |
dc.date.available | 2023-01-25T02:41:19Z | - |
dc.date.created | 2023-01-25 | - |
dc.date.issued | 2023-02-15 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/30788 | - |
dc.description.abstract | A novel anticorrosion and mechanically robust coating system was discovered via plasma electrolytic oxidation (PEO), in-situ MOFs growth strategy, and lubricant-infusion to produce slippery surface of AZ31 magnesium alloy. The PEO coating acts as a transition layer and provides a moderate corrosion barrier to Mg alloy. The homogenous and uniform ZIF-8 film on the PEO coating surface was successfully constructed by a practical and simple in-situ method. The incorporation of ZIF-8 particles plays a vital role to strengthen the corrosion resistance of PEO coating while increasing superhydrophobicity. Furthermore, the ZIF-8 film provides the anchoring site for storing infused lubricants to create a slippery surface. The prepared PEO-MOF-SLIPS showed six orders of magnitude lower icorr value than bare Mg alloy, indicating substantially improved corrosion resistance with an effective barrier performance. In addition, PEO-MOF-SLIPS demonstrates superior corrosion potential of −0.21 V/Ag/AgCl, after 2 days of immersion in 3.5 wt.% NaCl solution. The potentiodynamic polarization test (PDS) results proved that the slippery surface has superior water-repellence to other coatings, indicating higher endurance of SLIPS in 3.5 wt.% NaCl solution. Moreover, the PEO-MOF-SLIPS maintained its hydrophobicity for a longer time in 3.5 wt.% NaCl solution compared to PEO-MOF-SHS. EIS test results also proved that the PEO-MOF-SLIPS has a better resistance than that of PEO-MOF-SHS in prolonged immersion in a corrosive solution. According to the abrasion test, the PEO-MOF-SHS maintained its superhydrophobicity up to 100 cm under 100 g load and 80 cm under 200 g load. On the other hand, the PEO-MOF-SLIPS maintained its contact angle stable under both abrasion loadings. The as-prepared slippery surface showed durable water-repellent against the corrosive solution and higher mechanical robustness. The results demonstrate that the MOFs modified PEO coatings system provides a new pathway to the construction of the slippery surface of Mg alloy. It also proves that water-stable MOFs are efficient corrosion-resistant materials and can be used for various anticorrosion applications. © 2023 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Development of mechanically robust and anticorrosion slippery PEO coating with metal–organic framework (MOF) of magnesium alloy | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, D. | - |
dc.identifier.doi | 10.1016/j.cej.2023.141397 | - |
dc.identifier.scopusid | 2-s2.0-85146192560 | - |
dc.identifier.wosid | 000923543400001 | - |
dc.identifier.bibliographicCitation | Chemical Engineering Journal, v.458 | - |
dc.relation.isPartOf | Chemical Engineering Journal | - |
dc.citation.title | Chemical Engineering Journal | - |
dc.citation.volume | 458 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | INFUSED POROUS SURFACE | - |
dc.subject.keywordPlus | CORROSION-RESISTANCE | - |
dc.subject.keywordPlus | SUPERHYDROPHOBIC SURFACE | - |
dc.subject.keywordPlus | PROTECTION | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordAuthor | Anticorrosion | - |
dc.subject.keywordAuthor | PEO | - |
dc.subject.keywordAuthor | Slippery coatings | - |
dc.subject.keywordAuthor | Superhydrophobic | - |
dc.subject.keywordAuthor | ZIF-8 | - |
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