Icephobic behaviors of superhydrophobic amorphous carbon nano-films synthesized from a flame process

Xu, Yan‐Tong; Zhang, Guang; Li, Long; Xu, Changjian; Lv, Xiaochen; Zhang, Hui; Yao, Wei

doi:10.1016/j.jcis.2019.05.096

Cited by 23 publications

(11 citation statements)

References 67 publications

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“…This remarkable absorption contributes greatly to the high photothermal efficiency of the CS coating. Superhydrophobic surfaces exhibit icephobicity by removing condensed water before it can freeze (38). As shown in SI Appendix, Fig.…”

Section: Resultsmentioning

confidence: 99%

Superhydrophobic photothermal icephobic surfaces based on candle soot

Alsaid

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

272

177

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Ice accumulation causes various problems in our daily life for human society. The daunting challenges in ice prevention and removal call for novel efficient antiicing strategies. Recently, photothermal materials have gained attention for creating icephobic surfaces owing to their merits of energy conservation and environmental friendliness. However, it is always challenging to get an ideal photothermal material which is cheap, easily fabricating, and highly photothermally efficient. Here, we demonstrate a low-cost, high-efficiency superhydrophobic photothermal surface, uniquely based on inexpensive commonly seen candle soot. It consists of three components: candle soot, silica shell, and polydimethylsiloxane (PDMS) brushes. The candle soot provides hierarchical nano/microstructures and photothermal ability, the silica shell strengthens the hierarchical candle soot, and the grafted low-surface-energy PDMS brushes endow the surface with superhydrophobicity. Upon illumination under 1 sun, the surface temperature can increase by 53 °C, so that no ice can form at an environmental temperature as low as −50 °C and it can also rapidly melt the accumulated frost and ice in 300 s. The superhydrophobicity enables the melted water to slide away immediately, leaving a clean and dry surface. The surface can also self-clean, which further enhances its effectiveness by removing dust and other contaminants which absorb and scatter sunlight. In addition, after oxygen plasma treatment, the surface can restore superhydrophobicity with sunlight illumination. The presented icephobic surface shows great potential and broad impacts owing to its inexpensive component materials, simplicity, ecofriendliness, and high energy efficiency.

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Section: Resultsmentioning

confidence: 99%

Superhydrophobic photothermal icephobic surfaces based on candle soot

Alsaid

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

272

177

View full text Add to dashboard Cite

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“…Some of the most significant scientific achievements up to now indicate encouraging opportunities to decelerate the freezing process with more than 20 min [122,132] and impressively even for hours [52]. Furthermore, a few cutting-edge approaches for the fabrication of icephobic coatings clearly prove that the freezing of sessile or impacting water droplets could be shifted below −15, −20 [116,119,130] and even −35 • C [105]. Moreover, a very recent and highly innovative study suggests a passive technique for ice wicking [115] and suppression of condensation icing on overhead cables [126] via tuning the surface wettability/orientation and adding an array of hygroscopic micro-groove rings that foster overlapping dry zones, free of dew and frost for indefinite time.…”

Section: Modus Operandi Of Superhydrophobic Coatings For Passive Icinmentioning

confidence: 99%

“…Moreover, a very recent and highly innovative study suggests a passive technique for ice wicking [115] and suppression of condensation icing on overhead cables [126] via tuning the surface wettability/orientation and adding an array of hygroscopic micro-groove rings that foster overlapping dry zones, free of dew and frost for indefinite time. Currently, the control and manipulation of ice nucleation and accretion by means of hydrophobic surface modifications is a subject of extremely active ongoing research [115][116][117][118][119][120][121][122][123][124][125][126][127][128][129][130][131][132][133]. Some of the most significant scientific achievements up to now indicate encouraging opportunities to decelerate the freezing process with more than 20 min [122,132] and impressively even for hours [52].…”

Section: Modus Operandi Of Superhydrophobic Coatings For Passive Icinmentioning

confidence: 99%

From Extremely Water-Repellent Coatings to Passive Icing Protection—Principles, Limitations and Innovative Application Aspects

Esmeryan¹

2020

Coatings

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The severe environmental conditions in winter seasons and/or cold climate regions cause many inconveniences in our routine daily-life, related to blocked road infrastructure, interrupted overhead telecommunication, internet and high-voltage power lines or cancelled flights due to excessive ice and snow accumulation. With the tremendous and nature-inspired development of physical, chemical and engineering sciences in the last few decades, novel strategies for passively combating the atmospheric and condensation icing have been put forward. The primary objective of this review is to reveal comprehensively the major physical mechanisms regulating the ice accretion on solid surfaces and summarize the most important scientific breakthroughs in the field of functional icephobic coatings. Following this framework, the present article introduces the most relevant concepts used to understand the incipiency of ice nuclei at solid surfaces and the pathways of water freezing, considers the criteria that a given material has to meet in order to be labelled as icephobic and clarifies the modus operandi of superhydrophobic (extremely water-repellent) coatings for passive icing protection. Finally, the limitations of existing superhydrophobic/icephobic materials, various possibilities for their unconventional practical applicability in cryobiology and some novel hybrid anti-icing systems are discussed in detail.

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“…It is believed that superhydrophobic surfaces could help to repel water droplets away and prevent or delay ice nucleation, for the reason that the hierarchical structures and low surface energy introduce high-energy barriers and thermal barriers for ice formation [7][8][9].…”

Section: Introductionmentioning

confidence: 99%