Recent advances in bioinspired superhydrophobic ice-proof surfaces: challenges and prospects

Feng, Xiaoming; Xiao-wei, Zhang; Tian, Guizhong

doi:10.1039/d2nr00964a

Cited by 38 publications

(18 citation statements)

References 197 publications

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“…[28,29] Previous studies have shown that the hydrophobicity of materials is closely related to their surface microstructure. [33,34] A suitable rough surface can improve its hydrophobic performance. [33] For example, the tiny protuberances on lotus leaves and nanorod arrays on zinc oxide substrates all showed excellent hydrophobicity.…”

Section: Introductionmentioning

confidence: 99%

“…[33,34] A suitable rough surface can improve its hydrophobic performance. [33] For example, the tiny protuberances on lotus leaves and nanorod arrays on zinc oxide substrates all showed excellent hydrophobicity. [35,36] Therefore, if we pay attention to the construction of hydrophobic 3D microstructures while preparing high-activity ORR/OER dual-functional electrocatalysts, the catalytic electrode can display both high electrocatalytic activity and excellent hydrophobicity, thus improving the ORR dynamics and peak power density of a battery.…”

Section: Introductionmentioning

confidence: 99%

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Developing Superior Hydrophobic 3D Hierarchical Electrocatalysts Embedding Abundant Catalytic Species for High Power Density Zn–Air Battery

Zhao

Zhang

Zuo

et al. 2023

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It is essential but still challenging to design and construct inexpensive, highly active bifunctional oxygen electrocatalysts for the development of high power density zinc–air batteries (ZABs). Herein, a CoFe‐S@3D‐S‐NCNT electrocatalyst with a 3D hierarchical structure of carbon nanotubes growing on leaf‐like carbon microplates is designed and prepared through chemical vapour deposition pyrolysis of CoFe‐MOF and subsequent hydrothermal sulfurization. Its 3D hierarchical structure shows excellent hydrophobicity, which facilitates the diffusion of oxygen and thus accelerates the oxygen reduction reaction (ORR) kinetic process. Alloying and sulfurization strategies obviously enrich the catalytic species in the catalyst, including cobalt or cobalt ferroalloy sulfides, their heterojunction, core–shell structure, and S, N‐doped carbon, which simultaneously improve the ORR/OER catalytic activity with a small potential gap (ΔE = 0.71 V). Benefiting from these characteristics, the corresponding liquid ZABs show high peak power density (223 mW cm−2), superior specific capacity (815 mA h gZn−1), and excellent stability at 5 mA cm−2 for ≈900 h. The quasi‐solid‐state ZABs also exhibit a very high peak power density of 490 mW cm−2 and an excellent voltage round‐trip efficiency of more than 64%. This work highlights that simultaneous composition optimization and microstructure design of catalysts can effectively improve the performance of ZABs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Developing Superior Hydrophobic 3D Hierarchical Electrocatalysts Embedding Abundant Catalytic Species for High Power Density Zn–Air Battery

Zhao

Zhang

Zuo

et al. 2023

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“…Nature provides a wide range of biomimetic surfaces, attracting considerable attention in scientific principles and technological application. − In the past decade, bionic superhydrophobic surfaces have been developed in leaps and bounds. − However, the majority of research does not take into account the survival environment of the plant, only paying attention to the liquid-repelling function, which has become a huge obstacle of surface applications, especially in the field of antifogging and anti-icing. − …”

Section: Introductionmentioning

confidence: 99%

Phyllostachys Viridis-Leaf-like MLMN Surfaces Constructed by Nanosecond Laser Hybridization for Superhydrophobic Antifogging and Anti-Icing

Feng,

Chu,

Tian

et al. 2023

ACS Appl. Mater. Interfaces

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In nature, many species commonly evolve specific functional surfaces to withstand harsh external environments. In particular, structured wettability of surfaces has attracted tremendous interest due to its great potential in antifogging and anti-icing properties. Phyllostachys Viridis is a resistant low-temperature (−18 °C) plant with superhydrophobicity and ice resistivity behaviors. In this work, with inspiration from the representative cold-tolerant plants leaves, a unique multilevel micronano (MLMN) surface was fabricated on copper substrate by ultrafast laser process, which exhibited superior superhydrophobic characteristics with the water contact angle > 165° and rolling angle< 2°. In the dynamic wettability experiment, the rebound efficiency of the droplet on the MLMN surface reached 20.6%, and the contact time was only 10.6 ms. In the condensation experiment, the nucleation, growth, merging, and bouncing of fog drops on the surface was distinctly observed, indicating that rational texture structures can improve the antifogging performance of the surface. In the anti-icing experiment, the freezing time was delayed to 921 s at −10 °C, and the freezing time of salt water reached a staggering 1214 s. Moreover, the mechanical durability of MLMN surfaces was confirmed by scratch damage, sandpaper abrasion, and icing and melting cycle tests, and their repairability was evaluated for product applications in practice. Finally, the underlying antifogging/anti-icing strategy of the MLMN surface was also revealed. We anticipate that the investigations offer a promising way to handily design and fabricate multiscale hierarchical structures with reliable antifogging and anti-icing performance, especially in saltwater-related applications.

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“…It is imperative to develop mature methods for enhancing anti-icing performance because the accumulation of ice can cause significant damage to outdoor infrastructures . The icing delay time has predominantly been determined using crude assessments, such as observing the droplet shape from a side view or by rough judgments. − Hence, significant challenges persist in improving the durability of superhydrophobic textile surfaces and developing effective evaluation methods.…”

Section: Introductionmentioning

confidence: 99%

Fluorine-Free and Highly Durable Superhydrophobic Textiles for Antifouling and Anti-icing Applications

Qin

et al. 2023

ACS Appl. Polym. Mater.

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The toxicity of fluorosilane and the short lifespan of superhydrophobic surfaces have highly restricted the commercial application of superhydrophobic surfaces for antifouling and anti-icing. In this study, a robust and fluorine-free superhydrophobic textile was prepared using a facile spray-dry method. First, the hydrophobic coating was constructed via powerful covalent bonding between epoxy resin and polydimethylsiloxane (PDMS) using a cross-linker, 3-aminopropyltriethoxysilane (APTES), which provided amplified adhesion to the substrate. Later, micropapillary and lotus-like structures were fabricated through the deposition of nanosilica, which significantly enhanced the “air pillow” effect of the superhydrophobicity. The obtained superhydrophobic surface exhibited a water contact angle up to 162°, which remained >150° after 1200 abrasive cycles. The nanoscale structure was found to be somewhat protected by large-scale micron features, e.g., fabrics, which hindered the formation of hydrophilic defects due to wear. Furthermore, the droplets remained beaded on the surface after enduring extreme physical and chemical conditions. Interestingly, the icing delay time on the fabricated coatings increased by ∼20 times. We believe that the robust nature and easy implementation of this hydrophobic coating along with its excellent anti-icing performance will make superhydrophobic and anti-icing clothing feasible for use in various practical scenarios.

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Recent advances in bioinspired superhydrophobic ice-proof surfaces: challenges and prospects

Abstract: Bionic superhydrophobic ice-proof surfaces inspired by natural biology show great potential in daily human life. It has attracted a wide range of research interests due to its promising and wide...

Cited by 38 publications

References 197 publications

Developing Superior Hydrophobic 3D Hierarchical Electrocatalysts Embedding Abundant Catalytic Species for High Power Density Zn–Air Battery

Developing Superior Hydrophobic 3D Hierarchical Electrocatalysts Embedding Abundant Catalytic Species for High Power Density Zn–Air Battery

Phyllostachys Viridis-Leaf-like MLMN Surfaces Constructed by Nanosecond Laser Hybridization for Superhydrophobic Antifogging and Anti-Icing

Fluorine-Free and Highly Durable Superhydrophobic Textiles for Antifouling and Anti-icing Applications

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