A superhydrophobic textile inspired by polar bear hair for both in air and underwater thermal insulation

Shao, Ziyu; Wang, Yujie; Bai, Hao

doi:10.1016/j.cej.2020.125441

Cited by 69 publications

(37 citation statements)

References 39 publications

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“…[ 1–7 ] Among them, the functions related to light and heat have attracted extensive attention from researchers because light and heat are indispensable factors for human survival. Inspired by the special functions and microstructures related to light and heat of animals, some artificial materials with multiple functions have been designed and used for light and heat management, including broadband light reflection, [ 8,9 ] broadband light absorption, [ 10–12 ] thermal insulation, [ 13–15 ] and radiation cooling. [ 16,17 ]…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Ultra‐Black Sponge Derived from Loofah and Co‐MOF for Long‐Term Solar‐Powered Vapor Generation and Desalination

Wang

Zhang

et al. 2021

Solar RRL

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Designing ultra‐black materials with strong and broadband light absorption and efficient photothermal conversion properties is of great importance in many fields, including camouflage, catalysis, thermal therapy, and solar energy conversion. The West African Gaboon viper (Bitis rhinoceros), a master of camouflage, features black spots on its dorsal scales. The crest‐ridge structure in its black scales has been proven to be a typical antireflection structure. Herein, an artificial biomimetic ultra‐black sponge (BUBS) that imitates the crest‐ridge structure in the black scales of B. rhinoceros is successfully fabricated through growth of vertically aligned carbon nanosheet arrays derived from cobalt‐based metal–organic framework (Co‐MOF) on a loofah sponge. The vertically aligned carbon nanosheet arrays result in enhanced broadband light absorption (up to 97.08% on average) and photothermal conversion (equilibrium temperature of 80.7 °C under 1 sun illumination) of BUBS. Benefiting from its efficient light absorption and photothermal conversion, the BUBS is incorporated into solar‐powered vapor generation and desalination devices. The BUBS shows a higher water evaporation rate and efficiency of 1.93 kg m−2 h−1 and 98.5%, respectively, compared with other state‐of‐the‐art devices under 1 sun illumination. Furthermore, the BUBS also shows continuous and high water evaporation rates and excellent salt‐rejection in various brines, ensuring its potential application in solar‐powered desalination.

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Section: Introductionmentioning

confidence: 99%

Biomimetic Ultra‐Black Sponge Derived from Loofah and Co‐MOF for Long‐Term Solar‐Powered Vapor Generation and Desalination

Wang

Zhang

et al. 2021

Solar RRL

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“…Heat transfer in materials can be achieved by different ways. In fluids, heat is often transferred by convection, in which case the movement of the fluid itself transfers heat from one place to another [12]. Conduction is another method to transfer heat, in which there is no movement of the material and it is done by the transfer of energy within that material in contact with another material.…”

Section: Heat Transfermentioning

confidence: 99%

“…Specifications of materials at 293.15K[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. In this table, (', ") and (μ', μ") stand for the (real part, imaginary part) of the relative permittivity and permeability, respectively.…”

mentioning

confidence: 99%

Numerical Simulation of Coal Microwave Heating and Evaluation of The Reliability of The Results By Changing The Parameters Affecting It

Jebelli

Mahabadi

2021

Preprint

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In most mines, methane gas is accumulated in pores inside coal, the highest amount of which is found in coal mines, and methane is the most important polluting gas in underground coal mines. In coal mining operations, coalbed methane is one of the potential hazards that must be extracted to prevent an explosion of the accumulated gas and environmental pollution. One of the mechanisms is using microwave irradiation so that the thermal stress caused by microwave heating generates fractures. In this research, we investigated the most important parameters affecting the electric and thermal fields’ distribution in coal in order to identify the effective parameters that achieve the highest temperature increase rate and to reach the highest impact and efficiency of the system with the least amount of consumed energy. The results of this study show that the most effective parameter on the electric and thermal fields’ distribution within coal is the size of the resonance chamber.

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“…As the biggest organ of animals, the skin not only provides protection from the environment but also functions as an efficient sensor to external stimuli, [16][17][18] providing valuable design principles for durable flexible electronic skin. In this context, many strong and stretchable composite films have been developed in the past few years by mimicking the fiber-reinforced structure of the skin.…”

Section: Doi: 101002/adma202002695mentioning

confidence: 99%

A Transparent, Skin‐Inspired Composite Film with Outstanding Tear Resistance Based on Flat Silk Cocoon

Gao

et al. 2020

Advanced Materials

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Flexible and transparent substrates play a fundamental role as a mechanical support in advanced electronic devices. However, commonly used polymer films, such as polydimethylsiloxane, show low tear resistance because of their crack sensitivity. Herein, inspired by the excellent mechanical robustness of the skin and its fibrous structure, an epoxy‐resin‐based composite with a flat silk cocoon as a reinforcing fiber network is fabricated. With only 1 wt% of silk fiber, the tensile strength and modulus of the as‐prepared composite film are considerably increased by 300% and 612% compared to those of pure resin, while still maintaining flexibility and transparency. More importantly, the composite shows remarkable tear resistance: without fracture after ≈30 000 tensile cycles. The potential application of such transparent composite films as mechanically robust substrates for flexible electronics is also demonstrated. In addition, this study represents a bioinspired strategy to construct high‐performance functional composite materials.

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A superhydrophobic textile inspired by polar bear hair for both in air and underwater thermal insulation

Cited by 69 publications

References 39 publications

Biomimetic Ultra‐Black Sponge Derived from Loofah and Co‐MOF for Long‐Term Solar‐Powered Vapor Generation and Desalination

Biomimetic Ultra‐Black Sponge Derived from Loofah and Co‐MOF for Long‐Term Solar‐Powered Vapor Generation and Desalination

Numerical Simulation of Coal Microwave Heating and Evaluation of The Reliability of The Results By Changing The Parameters Affecting It

A Transparent, Skin‐Inspired Composite Film with Outstanding Tear Resistance Based on Flat Silk Cocoon

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