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Ren Z, Zhang M, Song S, Liu Z, Hong C, Wang T, Dong X, Hu W, Sitti M. Soft-robotic ciliated epidermis for reconfigurable coordinated fluid manipulation. SCIENCE ADVANCES 2022; 8:eabq2345. [PMID: 36026449 PMCID: PMC9417179 DOI: 10.1126/sciadv.abq2345] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 07/13/2022] [Indexed: 06/08/2023]
Abstract
The fluid manipulation capabilities of current artificial cilia are severely handicapped by the inability to reconfigure near-surface flow on various static or dynamically deforming three-dimensional (3D) substrates. To overcome this challenge, we propose an electrically driven soft-robotic ciliated epidermis with multiple independently controlled polypyrrole bending actuators. The beating kinematics and the coordination of multiple actuators can be dynamically reconfigured to control the strength and direction of fluid transportation. We achieve fluid transportation along and perpendicular to the beating directions of the actuator arrays, and toward or away from the substrate. The ciliated epidermises are bendable and stretchable and can be deployed on various static or dynamically deforming 3D surfaces. They enable previously difficult to obtain fluid manipulation functionalities, such as transporting fluid in tubular structures or enhancing fluid transportation near dynamically bending and expanding surfaces.
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Affiliation(s)
- Ziyu Ren
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
- Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich 8092, Switzerland
| | - Mingchao Zhang
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Shanyuan Song
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Zemin Liu
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Chong Hong
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Tianlu Wang
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Xiaoguang Dong
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Wenqi Hu
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Metin Sitti
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
- Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich 8092, Switzerland
- School of Medicine and College of Engineering, Koç University, Istanbul 34450, Turkey
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2
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Sood AK, Sethi O, Aggarwal M. Evaluation of mixed micellar interactions of
C
n
BCl
and
SDBS
mixtures using dissociated Margules model and influence of different salts. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ashwani Kumar Sood
- Department of Chemistry, UGC Centre for Advanced Studies II Guru Nanak Dev University Amritsar India
| | - Omish Sethi
- Department of Chemistry, UGC Centre for Advanced Studies II Guru Nanak Dev University Amritsar India
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3
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Wang T, Chang D, Huang D, Liu Z, Wu Y, Liu H, Yuan H, Jiang Y. Application of surfactants in papermaking industry and future development trend of green surfactants. Appl Microbiol Biotechnol 2021; 105:7619-7634. [PMID: 34559284 DOI: 10.1007/s00253-021-11602-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 11/25/2022]
Abstract
In this work, the application of chemical surfactants, including cooking aids, detergents, surface sizing agents, and deinking agents as core components, is introduced in the wet end of pulping and papermaking. This method for the combined application of enzymes and surfactants has expanded, promoting technological updates and improving the effect of surfactants in practical applications. Finally, the potential substitution of green surfactants for chemical surfactants is discussed. The source, classification, and natural functions of green surfactants are introduced, including plant extracts, biobased surfactants, fermentation products, and woody biomass. These green surfactants have advantages over their chemically synthesized counterparts, such as their low toxicity and biodegradability. This article reviews the latest developments in the application of surfactants in different paper industry processes and extends the methods of use. Additionally, the application potential of green surfactants in the field of papermaking is discussed. KEY POINTS: • Surfactants as important chemical additives in papermaking process are reviewed. • Deinking technologies by combined of surfactants and enzymes are reviewed. • Applications of green surfactant in papermaking industry are prospected.
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Affiliation(s)
- Tengfei Wang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China. .,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.
| | - Dejun Chang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Di Huang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China. .,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.
| | - Zetong Liu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Yukang Wu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Hongling Liu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Haibo Yuan
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Yi Jiang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
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4
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Ahmadi M, Chen Z. Challenges and future of chemical assisted heavy oil recovery processes. Adv Colloid Interface Sci 2020; 275:102081. [PMID: 31830684 DOI: 10.1016/j.cis.2019.102081] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/20/2019] [Accepted: 11/20/2019] [Indexed: 11/17/2022]
Abstract
The primary method for heavy oil and bitumen production across the world is still in-situ steam-based technology. There are some drawbacks associated with steam-driven heavy oil recovery methods such as cyclic steam stimulation (CSS), steam flooding, and steam-assisted gravity drainage (SAGD). These cons include the high greenhouse gas footprint, low heavy oil/bitumen recovery, and difficulty in stop operation in emergency conditions. There exists a need for an improved method for recovering residual oils after applying steam injection. One of the potential technologies for doing this is chemical assisted heavy oil recovery, especially alkaline and surfactant additives. But the challenging question is how to develop a chemical-based oil recovery method considering long-term steam-rock interactions. Several associated issues of chemical additives, including adsorption behavior of surfactant at reservoir conditions and thermal stability of surfactant at steam chamber temperature, make this question more complex. This paper addresses all these concerns and provides solid knowledge regarding this technology. We delve into newly formulated chemicals for coupling with thermal oil recovery techniques that are still limited to lab-scale research, with the need for further studies. This critical review also provides the opportunities and challenges associated with chemical assisted heavy oil/bitumen production in a post-steam injection scenario. Finally, different aspects of such a method are covered in this review, along with practical information on field trials and best practices across the world.
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Affiliation(s)
- Mohammadali Ahmadi
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB T2N1T4, Canada.
| | - Zhangxin Chen
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB T2N1T4, Canada
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5
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Polypyrrole nanotubes for electrochemically controlled extraction of atrazine, caffeine and progesterone. Mikrochim Acta 2019; 186:398. [PMID: 31183568 DOI: 10.1007/s00604-019-3545-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 05/22/2019] [Indexed: 10/26/2022]
Abstract
Polypyrrole (PPy) was electrochemically synthesized with charge control on the surface of a steel mesh. Two different morphologies (globular and nanotubular) were created and characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The modified electrodes were used as extraction phases in solid-phase extraction (SPE) and electrochemically controlled solid-phase extraction (EC-SPE) of atrazine, caffeine and progesterone. Raman spectroscopy was employed for the structural characterization of PPy after long exposure to the analytes. The electrochemical behavior was studied by cyclic voltammetry which revealed the higher capacitive behavior of polypyrrole nanotubes because of the huge superficial area, also no electrocatalytical behavior was observed evidencing the strong adsorption of the analytes on the PPy surface. The effects of the PPy oxidation state on the extraction performance were evaluated by in-situ electrochemical sorption experiments. The sorption capacity was evaluated by gas chromatography coupled to mass spectrometry (GC-MS). The method displays good stability, repeatability and reproducibility. The limits of detection range between 1.7-16.7 μg L-1. Following the extraction of river water samples, it was possible to identify the presence of other endogenous organic compounds besides the analytes of interest. This indicates the potential of the method and material developed in this work. Graphical abstract Schematic representation of a steel mesh electrode covered with polypyrrole nanotubes used as extraction phase for separation of contaminants from aqueous samples. The oxidation level of polypyrrole was electrochemically tuned by which the adsorption of analytes is deeply affected.
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Laster JS, Ezeamaku CD, Beaudoin SP, Boudouris BW. Impact of surface chemistry on the adhesion of an energetic small molecule to a conducting polymer surface. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Direct electrodeposition of imidazole modified poly(pyrrole) copolymers: synthesis, characterization and supercapacitive properties. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Hostert L, Alvarenga GD, Marchesi LF, Soares AL, Vidotti M. One-Pot sono electrodeposition of poly(pyrrole)/Prussian blue nanocomposites: Effects of the ultrasound amplitude in the electrode interface and electrocatalytical properties. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.08.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Chavez-Sumarriva I, Van Steenberge PHM, D’hooge DR. New Insights in the Treatment of Waste Water with Graphene: Dual-Site Adsorption by Sodium Dodecylbenzenesulfonate. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b02302] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Israel Chavez-Sumarriva
- Laboratory
for Chemical Technology (LCT), Ghent University, Technologiepark 914, B-9052 Gent, Belgium
- Faculty
of Chemistry and Chemical Engineering, National University of San Marcos, Lima 1, Lima, Peru
| | - Paul H. M. Van Steenberge
- Laboratory
for Chemical Technology (LCT), Ghent University, Technologiepark 914, B-9052 Gent, Belgium
| | - Dagmar R. D’hooge
- Laboratory
for Chemical Technology (LCT), Ghent University, Technologiepark 914, B-9052 Gent, Belgium
- Department
of Textiles, Ghent University, Technologiepark 907, B-9052 Zwijnaarde, Gent, Belgium
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10
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Hostert L, de Alvarenga G, Vidotti M, Marchesi LF. Sonoelectrodeposition of poly(pyrrole) films: Electrochemical and morphological effects caused by the ultrasonic amplitude. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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11
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Mosch HLKS, Akintola O, Plass W, Höppener S, Schubert US, Ignaszak A. Specific Surface versus Electrochemically Active Area of the Carbon/Polypyrrole Capacitor: Correlation of Ion Dynamics Studied by an Electrochemical Quartz Crystal Microbalance with BET Surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4440-9. [PMID: 27082127 DOI: 10.1021/acs.langmuir.6b00523] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Carbon/polypyrrole (PPy) composites are promising electrode materials for energy storage applications such as lightweight capacitors. Although these materials are composed of relatively inexpensive components, there is a gap of knowledge regarding the correlation between surface, porosity, ion exchange dynamics, and the interplay of the double layer capacitance and pseudocapacitance. In this work we evaluate the specific surface area analyzed by the BET method and the area accessible for ions using electrochemical quartz-crystal microbalance (EQCM) for SWCNT/PPy and carbon black Vulcan XC72-R/PPy composites. The study revealed that the polymer has significant influence on the pore size of the composites. Although the BET surface is low for the polypyrrole, the electrode mass change and thus the electrochemical area are large for the polymer-containing electrodes. This indicates that multiple redox active centers in the charged polymer chain are good ion scavengers. Also, for the composite electrodes, the effective charge storage occurs at the polypyrrole-carbon junctions, which are easy to design/multiply by a proper carbon-to-polymer weight ratio. The specific BET surface and electrochemically accessible surface area are both important parameters in calculation of the electrode capacitance. SWCNTs/PPy showed the highest capacitances normalized to the BET and electrochemical surface as compared to the polymer-carbon black. TEM imaging revealed very homogeneous distribution of the nanosized polymer particles onto the CNTs, which facilitates the synergistic effect of the double layer capacitance (CNTs) and pseudocapacitance (polymer). The trend in the electrode mass change in correlation with the capacitance suggest additional effects such as a solvent co-insertion into the polymer and the contribution of the charge associated with the redox activity of oxygen-containing functional groups on the carbon surface.
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Affiliation(s)
- Heike L K S Mosch
- Institute of Organic and Macromolecular Chemistry, Faculty of Chemical and Earth Sciences, Friedrich-Schiller University , D-07743 Jena, Germany
| | - Oluseun Akintola
- Institute of Inorganic and Analytical Chemistry, Faculty of Chemical and Earth Sciences, Friedrich-Schiller University , D-07743 Jena, Germany
| | - Winfried Plass
- Institute of Inorganic and Analytical Chemistry, Faculty of Chemical and Earth Sciences, Friedrich-Schiller University , D-07743 Jena, Germany
| | - Stephanie Höppener
- Institute of Organic and Macromolecular Chemistry, Faculty of Chemical and Earth Sciences, Friedrich-Schiller University , D-07743 Jena, Germany
| | - Ulrich S Schubert
- Institute of Organic and Macromolecular Chemistry, Faculty of Chemical and Earth Sciences, Friedrich-Schiller University , D-07743 Jena, Germany
| | - Anna Ignaszak
- Institute of Organic and Macromolecular Chemistry, Faculty of Chemical and Earth Sciences, Friedrich-Schiller University , D-07743 Jena, Germany
- Department of Chemistry, University of New Brunswick , Fredericton, New Brunswick E3B 5A3, Canada
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12
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Li Y, Jiang Y, Hu S, Zhang X, Zhai J, Han H, Xiao D, Liu P. Control of morphology and electromagnetic properties of polypyrrole synthesized by the template method. HIGH PERFORM POLYM 2015. [DOI: 10.1177/0954008315577822] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This article presents a contribution to a better understanding of the effects of pH value on the morphology, conductivity, and reflection loss of polypyrrole (PPy) prepared at different pH values using indigo carmine (IC) as the synthesis template. The results indicate that the morphology of PPy changes from spiral rods to nonspiral rods, then to particles, which is attributed to the gradual morphological change of IC micelle templates from prismatic structure to rugby-like structure, and finally to spherical structure. Further study demonstrates that the conductivity of PPy decreases with the gradual decrease of the pH value, as a result of gradually increased contact resistance and the degree of electron delocalization. With the decrease of the pH value, the maximum reflection loss of PPy gradually increases and the corresponding loss peak moves to higher frequency points simultaneously.
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Affiliation(s)
- Yanbin Li
- Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Yanman Jiang
- Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Shuchun Hu
- Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Xiandi Zhang
- Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Jing Zhai
- Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Hongchuan Han
- Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Da Xiao
- Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Pengfei Liu
- Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
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14
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Kim P, Wong TS, Alvarenga J, Kreder MJ, Adorno-Martinez WE, Aizenberg J. Liquid-infused nanostructured surfaces with extreme anti-ice and anti-frost performance. ACS NANO 2012; 6:6569-77. [PMID: 22680067 DOI: 10.1021/nn302310q] [Citation(s) in RCA: 520] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Ice-repellent coatings can have significant impact on global energy savings and improving safety in many infrastructures, transportation, and cooling systems. Recent efforts for developing ice-phobic surfaces have been mostly devoted to utilizing lotus-leaf-inspired superhydrophobic surfaces, yet these surfaces fail in high-humidity conditions due to water condensation and frost formation and even lead to increased ice adhesion due to a large surface area. We report a radically different type of ice-repellent material based on slippery, liquid-infused porous surfaces (SLIPS), where a stable, ultrasmooth, low-hysteresis lubricant overlayer is maintained by infusing a water-immiscible liquid into a nanostructured surface chemically functionalized to have a high affinity to the infiltrated liquid and lock it in place. We develop a direct fabrication method of SLIPS on industrially relevant metals, particularly aluminum, one of the most widely used lightweight structural materials. We demonstrate that SLIPS-coated Al surfaces not only suppress ice/frost accretion by effectively removing condensed moisture but also exhibit at least an order of magnitude lower ice adhesion than state-of-the-art materials. On the basis of a theoretical analysis followed by extensive icing/deicing experiments, we discuss special advantages of SLIPS as ice-repellent surfaces: highly reduced sliding droplet sizes resulting from the extremely low contact angle hysteresis. We show that our surfaces remain essentially frost-free in which any conventional materials accumulate ice. These results indicate that SLIPS is a promising candidate for developing robust anti-icing materials for broad applications, such as refrigeration, aviation, roofs, wires, outdoor signs, railings, and wind turbines.
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Affiliation(s)
- Philseok Kim
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts 02138, USA
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