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The role of superhydrophobicity in energy storage

The Challenge of Superhydrophobicity: Environmentally

In terms of energy, the elastic surface structure method relies on droplets as an energy storage mechanism (surface energy) during impact and recoil processes. The elasticity of the substrate increases so that the kinetic energy of the droplet is converted to surface energy and the elastic energy storage of the substrate, thereby replacing a

Laser patterned titanium surfaces with superior antibiofouling

In the last few decades, natureinspired superhydrophobicity with high water repellency (water contact angle, CA greater than 150°) has been applied to metal surfaces for important applications in

The Roles of Riblet and Superhydrophobic Surfaces in Energy

Riblet and superhydrophobic surfaces are two typical passive control technologies used to save energy. In this study, three microstructured samples-a micro-riblet surface (RS), a superhydrophobic surface (SHS), and a novel composite surface of micro-riblets with superhydrophobicity (RSHS)-were designed to improve the drag reduction rate of water

Superhydrophobic surfaces: Fundamentals,

Energy harvesting, Heat transfer, Nanocomposites, Ultrahydrophobicity, Lotus effect. Inspired by the "lotus effect," superhydrophobic surfaces have been engineered to repel water with unparalleled efficiency. 1

Concurrent Superhydrophobicity and Thermal Energy Storage

Despite considerable success in design and preparation of superhydrophobic particles, a facile and low-cost approach to develop multifunctional particles, especially microcapsules with the integrated performances of intrinsically long-lasting and highly stable superhydrophobicity and other passive/active functionalities, remains extremely challenging and is still in its infancy.

A Review of Recent Advances in Superhydrophobic

If the superhydrophobic features can be functionalized on various metal surfaces, it will be significant and beneficial in many industrial applications for saving energy and energy storage . For example, it can drag reduction, anti-fouling,

Superhydrophobic surfaces: a review on fundamentals,

Superhydrophobicity is the tendency of a surface to repel water drops. A surface is qualified as a superhydrophobic surface only if the surface possesses a high apparent contact angle (>150°), low contact angle

Concurrent Superhydrophobicity and Thermal Energy Storage

The resulting microcapsules (MCs) possess concurrent features of superhydrophobicity and thermal energy storage. Against thermal attack up to approximately 240 °C, the microstructure of MCs is nearly intact to avoid an obvious leakage of encapsulated PCM at high temperature, and meanwhile superhydrophobicity of MCs is enhanced unexpectedly to

Bioinspired Interfaces with Superwettability: From Materials to

Fast Self-Healing Superhydrophobic Thermal Energy Storage Coatings Fabricated by Bio-Based Beeswax and Artificially Cultivated Diatom Frustules. (111) Substrates with Different Pore Sizes: The Role of Interfacial Hydrogen Bonds. The Journal of Physical Chemistry C 2021 Superhydrophobicity and Rapid Rebounding Induced via a Unique

Superhydrophobicity Effects on Spheroid Formation and

The interaction of biomaterials with the immune system is ruled by the action of macrophages. The surface features of these biomaterials, like wettability, which is an expression of chemical composition, texture, and geometry, can affect macrophages response. Such surface parameters can be then efficiently exploited to improve biocompatibility by lowering undesired

Superhydrophobicity

Superhydrophobicity is a surface phenomenon that indicates a very low affinity to water, and, in turn, the surface is very difficult to be wetted. A generally accepted definition of superhydrophobicity is to have a water contact angle above 150° and a start-rolling angle lower than 10° at room temperature and ambient pressure.

Retardation of superhydrophobicity for the air plasma sprayed

For the coating surface after storage, the surface free energy of alkane chains presented in the outermost layer can be as low as 24 the coating surface can be completely transformed from as-sprayed superhydrophilicity to superhydrophobicity after atmospheric storage, with a contact angle of 150.8 ± 0.5° and a sliding angle of 5.8 ± 1.3

Laser patterned titanium surfaces with superior

Apart from the superhydrophobicity of laser patterned surfaces, the durability of nanolaser-treated superhydrophobhic AA2024, Ti64 and aluminium alloy substrates have been studied by various researchers [29, 30]

Insights into the superhydrophobicity of metallic surfaces

There were different opinions on what happened during UV-treatment and dark storage. if the adsorption of airborne hydrocarbons at micro/nanostructured metal surfaces plays an important role in their superhydrophobicity, The results showed that surface morphology, surface roughness and surface energy play critical roles for the

Numerical analysis of hydrophobic surface effects on cavitation

This study explores the influence of wettability surfaces on cavitation inception and evolution in high-speed centrifugal pumps used for thermal energy storage and transfer systems through numerical simulations.

Retardation of superhydrophobicity for the air plasma sprayed

During atmospheric storage, the coating surface spontaneously adsorbed low surface free energy substances, mainly carboxylates containing alkane chain and alkanes, resulting in the transition of

[PDF] The role of superhydrophobicity in the adhesion of a

Horizontal cylinders floating on liquid surfaces are mundanely observed, whose examples include the legs of aquatic arthropods and floating larvae, twigs and hairs. We study the force and energy required to lift the cylinder clear from the water surface, to evaluate the role of wettability, especially superhydrophobicity, in the adhesion of floating cylinders. We find that a drastic

Definitions for Hydrophilicity, Hydrophobicity, and

Here, the roles of surface energy and roughness, the crit. role of re-entrant texture, and the role of hierarchical structure in fabricating superoleophobic surfaces are discussed. On the basis of this understanding,

Large-Scale Fabrication of a Robust Superhydrophobic Thermal Energy

We propose a facile and effective route for large-scale fabrication of a superhydrophobic thermal energy storage (STES) sprayable coating with heat storage capacity and superhydrophobicity based on polydivinylbenzene (PDVB) nanotubes (NTs). Herein, the STES coating was applied on wood by convenient

Innovative design of superhydrophobic thermal energy-storage materials

Thermal energy-storage materials play a vital role in the sustainable development of economy and society with a rapid increase in energy demand, The superhydrophobicity means extreme water repellency due to a highly hydrophobic surface with a static water contact angle larger than 150° [29].

Superhydrophilicity to superhydrophobicity transition of

Overall, MD could play a role in helping the water industry meet the United Nations'' Sustainable Development Goals (SDGs), such as clean water, affordable energy, and climate change mitigation

Lotus effect in wetting and self-cleaning

Self-cleaning surfaces based on lotus effect with a very high static water contact angle greater than 160° and a lower roll-off angle have been successfully studied by researchers and applied in fields of self-cleaning windows, windshields, exterior paints for buildings and navigation of ships, utensils, roof tiles, textiles, solar panels, and applications requiring a

Concurrent Superhydrophobicity and Thermal

Recent Advances in Superhydrophobic Materials Development for

The superhydrophobicity remained after 350 cycles of 90° bending testing, 1000 cycles of sand abrasion tests, 4H pencil hardness test, and 1500 cycles of sand particles impact test from a 0.5 m height. reducing drag would yield substantial environmental and economic benefits through reducing energy consumption. SHS play a pivotal role in

Concurrent Superhydrophobicity and Thermal Energy Storage

As a class of thermal energy-storage materials, phase change materials (PCMs) play an important role in sustainable development of economy and society with a rapid increase in energy demands.

Superhydrophobicity

In this chapter, we review in detail the principles of superhydrophobicity, covering such topics as the effect of roughness on the contact angle and contact angle hysteresis (the difference between a maximum and a minimum possible value of the contact angle for a given surface), transitions between the homogeneous and composite wetting regimes and their

A Review of Recent Advances in Superhydrophobic

Inspired by the superhydrophobic properties of some plants and animals with special structures, such as self-cleaning, water repellent, and drag reduction, the research on the basic theory and practical applications of superhydrophobic

The role of superhydrophobicity in the adhesion of a floating

We study the force and energy required to lift the cylinder clear from the water surface, to evaluate the role of wettability, especially superhydrophobicity, in the adhesion of floating cylinders. We find that a drastic degree of energy saving is achieved when lifting a superhydrophobic cylinder as compared with a cylinder with moderate

Insights into the superhydrophobicity of metallic surfaces

In this work, we aim at resolving two important unclear issues in literatures on superhydrophobicity at metal surfaces: (i) if the adsorption of airborne hydrocarbons at micro/nanostructured metal surfaces plays an important role in their superhydrophobicity, and (ii) if the transition between superhydrophilicity and superhydrophobicity by UV-O

The role of superhydrophobicity in energy storage [PDF]

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