Bioinspired functional SLIPSs and wettability gradient surfaces and their synergistic cooperation and opportunities for enhanced condensate and fluid transport

Lv, Fengyong; Zhao, Fei; Cheng, Daolai; Dong, Zhili; Jia, Hongwei; Xiao, Xin; Orejon, Daniel

doi:10.1016/j.cis.2021.102564

Cited by 32 publications

(18 citation statements)

References 228 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Numerous comprehensive reviews have been published, 5,[14][15][16][17][18][19][20] in which the preparation and the dew productivity of water harvesting surfaces with hydrophilichydrophobic hybrid patterns have been described in detail. After summarizing this literature, we concluded that: 1. the main aim of previous studies was on accelerating the dew droplet growth rate by preparing functional surfaces with alternating superhydrophilic and superhydrophobic patterns or cone arrays, that promote inter-droplet collisions; which is one aspect that differs from radiative cooling material investigations where emissivity enhancement in the 8-13 μm wave range "atmospheric window" and reflectivity enhancement in the wave range of the solar spectrum are concerned.…”

Section: Dewing and Water Harvesting Materialsmentioning

confidence: 99%

Experimental study on interaction between wettability configuration and dewing efficiency of surfaces with a cavity array

Zhang

Yan

Wang

et al. 2022

Environ. Sci.: Water Res. Technol.

View full text Add to dashboard Cite

show abstract

Section: Dewing and Water Harvesting Materialsmentioning

confidence: 99%

Experimental study on interaction between wettability configuration and dewing efficiency of surfaces with a cavity array

Zhang

Yan

Wang

et al. 2022

Environ. Sci.: Water Res. Technol.

View full text Add to dashboard Cite

show abstract

“…Gulfam et al successfully developed phase-change slippery liquidinfused porous surfaces with thermo-responsive wetting and shedding states 25 . Subsequently, liquid-lubricated slippery surfaces have been successfully developed based on different substrates, including organogel 26 , graphene sponge 27 , metal mesh 28 , magnetic microcilia surface 7 , and micropillar arrayed metal oxides 29 . Significantly, Lv et al comprehensively summarized recent advances and developments on bioinspired SLIPSs and wettability gradient surfaces, focusing on their synergistic cooperation for condensation and fluid transport related applications 30,31 .…”

Section: Introductionmentioning

confidence: 99%

Carnivorous plants inspired shape-morphing slippery surfaces

Han¹,

Zhang²,

Chen³

et al. 2023

OEA

View full text Add to dashboard Cite

Carnivorous plants, for instance, Dionaea muscipula and Nepenthes pitcher plant, inspired the innovation of advanced stimuli-responsive actuators and lubricant-infused slippery surfaces, respectively. However, hybrid bionic devices that combine the active and passive prey trapping capabilities of the two kinds of carnivorous plants remain a challenge. Herein, we report a moisture responsive shape-morphing slippery surface that enables both moisture responsive shapemorphing and oil-lubricated water repellency for simultaneous active-and passive-droplet manipulation. The moisture deformable slippery surface is prepared by creating biomimetic microstructures on graphene oxide (GO) membrane via femtosecond laser direct writing and subsequent lubricating with a thin layer of oil on the laser structured reduced GO (LRGO) surface. The integration of a lubricant-infused slippery surface with an LRGO/GO bilayer actuator endows the actuator with droplet sliding ability and promotes the moisture deformation performance due to oil-enhanced water repellency of the inert layer (LRGO). Based on the shape-morphing slippery surface, we prepared a series of proof-of-concept actuators, including a moisture-response Dionaea muscipula actuator, a smart frog tongue, and a smart flower, demonstrating their versatility for active/passive trapping, droplet manipulation, and sensing.

show abstract

“…Hybrid superwetting surfaces can also be implemented in promoting droplet departure and limiting droplet size growth for efficient dropwise condensation and heat transfer. ,, Nature serves as inspiration for the design of hybrid superwetting surfaces for enhancing dropwise condensation, , including the dot pattern on the back of the Namib desert beetle, the cactus-like hydrophilic patterns, − the dual biomimetic pattern which contains cactus spine and Sarracenia trichome, , and the multiple biomimetic patterns. , The renewal of the condensation region on a cold surface was typically observed when these droplets were elegantly evacuated by the suction effect of such hydrophilic patterns. Hence, it suggested that promoting both droplet departure and also condensing surface renewal should be the preferred route to enhance dropwise condensation and heat transfer by hybrid superwetting surfaces.…”

Section: Introductionmentioning

confidence: 99%

Dropwise Condensate Comb for Enhanced Heat Transfer

Tang

Yang

Wang

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Dropwise condensation on superhydrophobic surfaces could potentially enhance heat transfer by droplet spontaneous departure via coalescence-induced jumping. However, an uncontrolled droplet size could lead to a significant reduction of heat transfer by condensation, due to large droplets that resulted in a flooding phenomenon on the surface. Here, we introduced a dropwise condensate comb, which consisted of U-shaped protruding hydrophilic stripes and hierarchical micro-nanostructured superhydrophobic background, for a better control of condensation droplet size and departure processes. The dropwise condensate comb with a wettability-contrast surface structure induced droplet removal by flank contact rather than three-phase line contact. We showed that dropwise condensation in this structure could be controlled by designing the width of the superhydrophobic region and height of the protruding hydrophilic stripes. In comparison with a superhydrophobic surface, the average droplet radius was decreased to 12 μm, and the maximum droplet departure radius was decreased to 189 μm by a dropwise condensate comb with 500 μm width of a superhydrophobic region and 258 μm height of a protruding hydrophilic stripe. By controlling the droplet size and departure on hierarchical micro-nanostructured superhydrophobic surfaces, it was experimentally demonstrated that both the heat transfer coefficient and heat flux could be enhanced significantly. Moreover, the dropwise condensate comb showed a maximum heat transfer coefficient of 379 kW m–2 K–1 at a low subcooling temperature, which was 85% higher than that of a superhydrophobic surface, and it showed 113% improvement of high heat flux or heat transfer coefficient when it was compared with that of the hierarchical micro-nanostructured superhydrophobic surface at a high subcooling temperature of ∼10.6 K. This work could potentially transform the design and fabrication space for high-performance heat transfer devices by spatial control of condensation droplet size and departure processes.

show abstract

Bioinspired functional SLIPSs and wettability gradient surfaces and their synergistic cooperation and opportunities for enhanced condensate and fluid transport

Cited by 32 publications

References 228 publications

Experimental study on interaction between wettability configuration and dewing efficiency of surfaces with a cavity array

Experimental study on interaction between wettability configuration and dewing efficiency of surfaces with a cavity array

Carnivorous plants inspired shape-morphing slippery surfaces

Dropwise Condensate Comb for Enhanced Heat Transfer

Contact Info

Product

Resources

About