Wetting Models and Working Mechanisms of Typical Surfaces Existing in Nature and Their Application on Superhydrophobic Surfaces: A Review

Lu, Na; Jin, Yu; Deng, Yuanwang; Zhao, Xiaohuan; Han, Dandan; Zhang, Zhiqing

doi:10.1002/admi.201701052

Cited by 91 publications

(24 citation statements)

References 257 publications

(385 reference statements)

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“…It has also been found that the skin of marine fish has the ability to self-clean and maintain super-oiliness in water and is superhydrophobic. 82,83 Bacterial biofilms have been found to have very low surface tension in air and are highly hydrophobic. 84 Bear et al 83 developed a particle coating that strongly repels water which consists of special silica particles.…”

Section: Special Coatingmentioning

confidence: 99%

“…82,83 Bacterial biofilms have been found to have very low surface tension in air and are highly hydrophobic. 84 Bear et al 83 developed a particle coating that strongly repels water which consists of special silica particles. Campos et al 85 combined a silica and fluoropolymer binder to precipitate a water-repellent coating.…”

Section: Special Coatingmentioning

confidence: 99%

A review on ice detection technology and ice elimination technology for wind turbine

et al. 2019

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Blade icing can affect wind turbines to generate electricity. In severe cases, 30% of power generation is lost in a year, and safety problems in the vicinity of wind power plants are also caused. Researchers have designed anti-icing and de-icing technologies to reduce these effects, and excellent ice-detecting devices are a prerequisite for using anti-icing and de-icing technologies. Ultrasonic attenuation technology can effectively and reliably detect the presence of ice without affecting the aerodynamic performance of the blade, providing a reliable guarantee for anti-icing and de-icing systems. Deicing and anti-icing systems are divided into active and passive, active heating blades are still the most effective anti-icing and de-icing methods, but their energy consumption is too high. Although there are many existing de-icing methods, there are not many practical uses. This article introduces them separately and lists their advantages and disadvantages. The use of ultrasonic anti-icing and de-icing is an economical and reliable means that has been proven to be used for anti-icing and de-icing of blades. However, under normal circumstances, a single anti-icing de-icing system cannot completely solve the problem of icing of the blades. This paper suggests using both ultrasonic and hydrophobic coatings to cope with more icing conditions. K E Y W O R D Santi-icing and deicing technology, fan blade, hydrophobic coating, ice detection technology, ultrasonic deicing | INTRODUCTIONWith the rapid development of the world economy, lots of countries are increasingly demanding energy resources. Owing to release a lot of greenhouse gases, chemicals and toxins substances from the combustion of the fossil fuels such as coal and oil, 1 People began to look for renewable energy to provide energy consumption, such as wind energy, 2-4 hydrogen energy, 5-7 solar energy, 8-10 biogas and biomass energy. 11-15 With the wind power growing rapidly, generate electricity by using wind turbines is economical and environmentally friendly. 16 As can be seen in Figure 1, China's total installed capacity of wind turbines in 2016 is much higher than in other countries.China has the largest wind power market in the country, and the installed capacity of wind power is growing steadily year by year. The high density of air is conducive to the development of wind energy resources in cold regions. Figure 2 shows wind resource changes in different seasons. The wind speed from June to August is significantly lower than other months. There are also data showing that wind resources in cold regions are 10% higher than other regions. 17,18

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“…The couple stress impacts with joule heating and viscous dissipation have been studied and analyzed by different researchers over different surfaces [24][25][26]. Heat transfer enhancement and its detailed study with engineering applications can be found in the references [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Thin Film Flow of Couple Stress Magneto-Hydrodynamics Nanofluid with Convective Heat over an Inclined Exponentially Rotating Stretched Surface

Tassaddiq¹,

Amin²,

Shutaywi³

et al. 2020

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In this article a couple stress magneto-hydrodynamic (MHD) nanofluid thin film flow over an exponential stretching sheet with joule heating and viscous dissipation is considered. Similarity transformations were used to obtain a non-linear coupled system of ordinary differential equations (ODEs) from a system of constitutive partial differential equations (PDEs). The system of ordinary differential equations of couple stress magneto-hydrodynamic (MHD) nanofluid flow was solved using the well-known Homotopy Analysis Method (HAM). Nusselt and Sherwood numbers were demonstrated in dimensionless forms. At zero Prandtl number the velocity profile was analytically described. Furthermore, the impact of different parameters over different state variables are presented with the help of graphs. Dimensionless numbers like magnetic parameter M, Brownian motion parameter Nb, Prandtl number Pr, thermophoretic parameter Nt, Schmidt number Sc, and rotation parameter S were analyzed over the velocity, temperature, and concentration profiles. It was observed that the magnetic parameter M increases the axial, radial, drainage, and induced profiles. It was also apparent that Nu reduces with greater values of Pr. On increasing values of the Brownian motion parameter the concentration profile declines, while the thermophoresis parameter increases.

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“…In order to overcome the above problems and further improve the performance of lithium-sulfur batteries, researchers have studied a series of countermeasures, including the design of sulfur cathode (Song et al, 2013;Rosenman et al, 2015;Li et al, 2016;Pang et al, 2016;Ye et al, 2018), the protection of lithium anode (Wu et al, 2014(Wu et al, , 2015Cheng X. B. et al, 2016;Jiaqiang et al, 2017), and the optimization of electrolytes (Arumugam et al, 2014;Zhang S. et al, 2015). In terms of the electrolyte optimization, solid electrolytes including gels, solid polymers, inorganic ceramics and inorganic-organic composite electrolytes are gaining more and more attention (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Research Progress of the Solid State Lithium-Sulfur Batteries

et al. 2019

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Lithium-sulfur batteries using lithium as the anode and sulfur as the cathode can achieve a theoretical energy density (2,600 Wh.g −1) several times higher than that of Li ion batteries based on the chemical conversion reaction of 6Li + S 8 ↔ 8Li 2 S. The cost effectiveness, together with the intrinsic high energy density of the Li-S batteries, enables it to be an important option for the next generation energy storage devices. However, lithium-sulfur batteries using the liquid electrolyte would lead to the dissolution and "shuttle effect" of polysulfides, which greatly decrease the cycle life and specific capacity. In order to realize long cycle life of the lithium-sulfur battery, it is crucial to address the uncontrolled diffusion of polysulfides. Replacing the liquid electrolyte with the solid electrolyte, which can address the polysulfide dissolution and diffusion problem, inhibit the growth of lithium dendrites on the anode side, and greatly improve the safety and the cycle stability of lithium-sulfur batteries. In spite of the above merits, the performance and application of solid state Li-S batteries are strongly constrained by their low discharge capacity, poor rate performance and unsatisfied cycle life, which need to be overcome by advances in both the materials and the battery design. In this mini-review, the recent research progress of solid-state lithium-sulfur batteries in several aspects, including the sulfur-cathode design, different types of solid electrolyte and Li-S batteries based on them is described/summarized. New insights and synthesis approaches for the stable lithium anode are also summarized. We particularly emphasize the role of the interface in impeding the battery reaction, as well as the construction of the "solid/solid/solid" three-phase reaction boundary. At last, the prospects and challenges in further advancing the scientific understanding and enabling the battery technology viable are presented to shed light on the upcoming research efforts.

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“…After hydrophobic modification, the sponge can not only absorb the oil phase but also release the absorbed oil phase by simple extrusion, which greatly reduces the recovery cost of the oil phase. According to the theory of Wenzel and the Cassie-Baxter model, the hydrophobic properties of the material surface are determined by the chemical properties and the roughness of the material surface [31,32]. Silicon/fluorine materials are common low surface energy material, which has excellent properties such as weather resistance, refractory, corrosion resistance, and oxidation stability [18,[33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Plant-Inspired Layer-by-Layer Self-Assembly of Super-Hydrophobic Coating for Oil Spill Cleanup

et al. 2019

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A versatile, facile, energy-saving, low-cost and plant-inspired self-assembly strategy was used to prepare super-hydrophobic coating in this study. Concretely, an appealing super-hydrophobicity surface was obtained by designing a molecular building block phytic acid (PA)-Fe (III) complex to anchor the substrate and hydrophobic thiol groups (HT). The facile and green modification method can be applied to variety of substrates. The as-prepared PA-Fe (III)–HT coated melamine composite sponge possesses both super-hydrophobic and superlipophilicity property. Moreover, it displays superior efficiency to separate the oil–water mixture and splendid oil spill cleanup.

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Wetting Models and Working Mechanisms of Typical Surfaces Existing in Nature and Their Application on Superhydrophobic Surfaces: A Review

Cited by 91 publications

References 257 publications

A review on ice detection technology and ice elimination technology for wind turbine

Thin Film Flow of Couple Stress Magneto-Hydrodynamics Nanofluid with Convective Heat over an Inclined Exponentially Rotating Stretched Surface

Research Progress of the Solid State Lithium-Sulfur Batteries

Plant-Inspired Layer-by-Layer Self-Assembly of Super-Hydrophobic Coating for Oil Spill Cleanup

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