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Chen X, Wang P, Zhang D. Designing a Superhydrophobic Surface for Enhanced Atmospheric Corrosion Resistance Based on Coalescence-Induced Droplet Jumping Behavior. ACS Appl Mater Interfaces 2019; 11:38276-38284. [PMID: 31529958 DOI: 10.1021/acsami.9b11415] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Coalescence-induced droplet jumping behavior of superhydrophobic surfaces has attracted increasing attention for condensation heat transfer, antifrosting, self-cleaning, and electrostatic energy harvesting applications. The potential of applying such functionalized behavior for atmospheric corrosion protection, however, is unknown. Herein, we experimentally demonstrate, for the first time, the feasibility of applying coalescence-induced droplet jumping behavior of a superhydrophobic surface for atmospheric corrosion protection. Based on the rational fabrication of two kinds of superhydrophobic surfaces that are advantageous and not advantageous for coalescence-induced droplet jumping behavior, we reveal a novel atmospheric corrosion protection mechanism by studying the correlations of the surface structure, droplet jumping behavior, and atmospheric corrosion resistance of the two surfaces. Our results demonstrate that the superhydrophobic surface with coalescence-induced droplet jumping behavior presents a better atmospheric corrosion resistance than the superhydrophobic surface without coalescence-induced droplet jumping behavior. This is because coalescence-induced droplet jumping behavior of the superhydrophobic surface offers a possible mechanism to switch the droplets from a partial wetting state to the mobile Cassie state, and this switch is critical for facilitating the recovery of the air film trapped in the microstructure of a surface. In particular, the recovered air film enhances the atmospheric corrosion resistance of a superhydrophobic surface due to its barrier-like character. The insights gained from this work not only open a new avenue for designing first-rank anticorrosion materials but also offer new opportunities for understanding the physics of jumping droplets in other promising applications.
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Affiliation(s)
- Xiaotong Chen
- Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology , Chinese Academy of Sciences , Qingdao 266071 , China
- Open Studio for Marine Corrosion and Protection , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao 266237 , China
- University of Chinese Academy of Sciences , Beijing 100039 , China
- Center for Ocean Mega-Science , Chinese Academy of Sciences , Qingdao 266071 , China
| | - Peng Wang
- Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology , Chinese Academy of Sciences , Qingdao 266071 , China
- Open Studio for Marine Corrosion and Protection , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao 266237 , China
- Center for Ocean Mega-Science , Chinese Academy of Sciences , Qingdao 266071 , China
| | - Dun Zhang
- Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology , Chinese Academy of Sciences , Qingdao 266071 , China
- Open Studio for Marine Corrosion and Protection , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao 266237 , China
- Center for Ocean Mega-Science , Chinese Academy of Sciences , Qingdao 266071 , China
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Winkel A, Visser EJW, Colmer TD, Brodersen KP, Voesenek LACJ, Sand-Jensen K, Pedersen O. Leaf gas films, underwater photosynthesis and plant species distributions in a flood gradient. Plant Cell Environ 2016; 39:1537-1548. [PMID: 26846194 DOI: 10.1111/pce.12717] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 01/18/2016] [Accepted: 01/18/2016] [Indexed: 06/05/2023]
Abstract
Traits for survival during flooding of terrestrial plants include stimulation or inhibition of shoot elongation, aerenchyma formation and efficient gas exchange. Leaf gas films form on superhydrophobic cuticles during submergence and enhance underwater gas exchange. The main hypothesis tested was that the presence of leaf gas films influences the distribution of plant species along a natural flood gradient. We conducted laboratory experiments and field observations on species distributed along a natural flood gradient. We measured presence or absence of leaf gas films and specific leaf area of 95 species. We also measured, gas film retention time during submergence and underwater net photosynthesis and dark respiration of 25 target species. The presence of a leaf gas film was inversely correlated to flood frequency and duration and reached a maximum value of 80% of the species in the rarely flooded locations. This relationship was primarily driven by grasses that all, independently of their field location along the flood gradient, possess gas films when submerged. Although the present study and earlier experiments have shown that leaf gas films enhance gas exchange of submerged plants, the ability of species to form leaf gas films did not show the hypothesized relationship with species composition along the flood gradient.
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Affiliation(s)
- Anders Winkel
- School of Plant Biology, The University of Western Australia, Crawley, 6009, Western Australia, Australia
- Freshwater Biological Laboratory, Department of Biology, University of Copenhagen, Universitetsparken 4, 3rd floor, 2100, Copenhagen, Denmark
| | - Eric J W Visser
- Experimental Plant Ecology, Institute for Water and Wetland Research, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Timothy D Colmer
- School of Plant Biology, The University of Western Australia, Crawley, 6009, Western Australia, Australia
| | - Klaus P Brodersen
- Freshwater Biological Laboratory, Department of Biology, University of Copenhagen, Universitetsparken 4, 3rd floor, 2100, Copenhagen, Denmark
| | - Laurentius A C J Voesenek
- Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | - Kaj Sand-Jensen
- Freshwater Biological Laboratory, Department of Biology, University of Copenhagen, Universitetsparken 4, 3rd floor, 2100, Copenhagen, Denmark
| | - Ole Pedersen
- School of Plant Biology, The University of Western Australia, Crawley, 6009, Western Australia, Australia
- Freshwater Biological Laboratory, Department of Biology, University of Copenhagen, Universitetsparken 4, 3rd floor, 2100, Copenhagen, Denmark
- Institute of Advanced Studies, The University of Western Australia, Crawley, 6009, Western Australia, Australia
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