Bio-inspired dewetted surfaces based on SiC/Si interlocked structures for enhanced-underwater stability and regenerative-drag reduction capability
Drag reduction has become a serious issue in recent years in terms of energy conservation and environmental protection. Among diverse approaches for drag reduction, superhydrophobic surfaces have been mainly researched due to their high drag reducing efficiency. However, due to limited lifetime of p...
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| Veröffentlicht in: | Scientific reports 2016-04, Vol.6 (1), p.24653-24653, Article 24653 |
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| description | Drag reduction has become a serious issue in recent years in terms of energy conservation and environmental protection. Among diverse approaches for drag reduction, superhydrophobic surfaces have been mainly researched due to their high drag reducing efficiency. However, due to limited lifetime of plastron (i.e., air pockets) on superhydrophobic surfaces in underwater, the instability of dewetted surfaces has been a sticking point for practical applications. This work presents a breakthrough in improving the underwater stability of superhydrophobic surfaces by optimizing nanoscale surface structures using SiC/Si interlocked structures. These structures have an unequaled stability of underwater superhydrophobicity and enhance drag reduction capabilities,with a lifetime of plastron over 18 days and maximum velocity reduction ratio of 56%. Furthermore, through photoelectrochemical water splitting on a hierarchical SiC/Si nanostructure surface, the limited lifetime problem of air pockets was overcome by refilling the escaping gas layer, which also provides continuous drag reduction effects. |
| doi_str_mv | 10.1038/srep24653 |
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Among diverse approaches for drag reduction, superhydrophobic surfaces have been mainly researched due to their high drag reducing efficiency. However, due to limited lifetime of plastron (i.e., air pockets) on superhydrophobic surfaces in underwater, the instability of dewetted surfaces has been a sticking point for practical applications. This work presents a breakthrough in improving the underwater stability of superhydrophobic surfaces by optimizing nanoscale surface structures using SiC/Si interlocked structures. These structures have an unequaled stability of underwater superhydrophobicity and enhance drag reduction capabilities,with a lifetime of plastron over 18 days and maximum velocity reduction ratio of 56%. Furthermore, through photoelectrochemical water splitting on a hierarchical SiC/Si nanostructure surface, the limited lifetime problem of air pockets was overcome by refilling the escaping gas layer, which also provides continuous drag reduction effects.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep24653</identifier><identifier>PMID: 27095674</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/925/357/1016 ; 639/925/929/170 ; Energy conservation ; Environmental protection ; Humanities and Social Sciences ; Hydrophobic surfaces ; multidisciplinary ; Projects ; Science ; Splitting ; Trailers ; Underwater ; Velocity</subject><ispartof>Scientific reports, 2016-04, Vol.6 (1), p.24653-24653, Article 24653</ispartof><rights>The Author(s) 2016</rights><rights>Copyright Nature Publishing Group Apr 2016</rights><rights>Copyright © 2016, Macmillan Publishers Limited 2016 Macmillan Publishers Limited</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-502bd8c1f8defc17f5b3788d92954128341897a037441bc55fd68579977c7653</citedby><cites>FETCH-LOGICAL-c438t-502bd8c1f8defc17f5b3788d92954128341897a037441bc55fd68579977c7653</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4837397/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4837397/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,41096,42165,51551,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27095674$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lee, By Junghan</creatorcontrib><creatorcontrib>Zhang, Zhuo</creatorcontrib><creatorcontrib>Baek, Seunghyun</creatorcontrib><creatorcontrib>Kim, Sangkuk</creatorcontrib><creatorcontrib>Kim, Donghyung</creatorcontrib><creatorcontrib>Yong, Kijung</creatorcontrib><title>Bio-inspired dewetted surfaces based on SiC/Si interlocked structures for enhanced-underwater stability and regenerative-drag reduction capability</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>Drag reduction has become a serious issue in recent years in terms of energy conservation and environmental protection. 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| subjects | 639/925/357/1016 639/925/929/170 Energy conservation Environmental protection Humanities and Social Sciences Hydrophobic surfaces multidisciplinary Projects Science Splitting Trailers Underwater Velocity |
| title | Bio-inspired dewetted surfaces based on SiC/Si interlocked structures for enhanced-underwater stability and regenerative-drag reduction capability |
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