微/纳米分层哑铃状和微乳头状结构可提高光吸收率,促进防冰/除冰性能

IF 3.7 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Zhizhong Wang, Xiaoming Feng, Yaxiaer Yalikun, Fengqin Li, Yan Li, Lei Zhao, Tianlong Zhang, Guizhong Tian
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引用次数: 0

摘要

冰的形成和积聚带来了巨大挑战,迫切需要清洁高效的防冰解决方案。太阳能是一种强大的可持续资源,可与微纳米结构的超疏水表面相结合,通过太阳能光热效应提高防冰和除冰性能,从而克服传统超疏水表面的局限性。在此,受竹子和荷叶的启发,开发了一种协同光热防冰超疏水表面(PASS)。通过纳秒激光烧蚀和化学改性,该表面具有显著的超疏水低粘附性(水接触角>167°,滚动角<2°)。在湿度为 60% 的条件下,PASS 能显著地将水滴的凝固时间延长至 1056 秒,并将霜的形成时间延迟至 47 分钟。此外,经过多次严格测试后,表面仍保持超疏水特性。此外,光热转换效率高达 67.31%,在环境条件下(Tr = 7 °C),1.5 个太阳照射 600 秒,温度可升至 95.6 °C。在-15 °C的条件下,在 1.5 个太阳光照射下,冰的融化时间仅为 120 秒。因此,PASS 样品因其卓越的光热性能、超疏水性和持久的坚固性,成为防冰和除冰领域的杰出策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Micro/Nano Hierarchical Dumbbell-like and Micropapillae Structure Improves Light Absorption and Facilitates Anti-icing/Deicing Performance

Micro/Nano Hierarchical Dumbbell-like and Micropapillae Structure Improves Light Absorption and Facilitates Anti-icing/Deicing Performance
The emergence of ice formation and accretion presents significant challenges, catalyzing an urgent need for clean and efficient anti-icing solutions. Solar energy, a powerful and sustainable resource, can be integrated with the micronano-structured superhydrophobic surface to enhance anti-icing and deicing performance through the solar photothermal effect, overcoming the limitations of a traditional superhydrophobic surface. Herein, inspired by bamboo and lotus leaves, a synergetic photothermal anti-icing superhydrophobic surface (PASS) has been developed. This was achieved through nanosecond laser ablation and chemical modification, resulting in a surface with remarkable superhydrophobic low adhesion (water contact angle >167°, rolling angle < 2°). The PASS notably extends the freezing time of water droplets to 1056 s and delays frost formation to 47 min at 60% humidity. Moreover, the surface retains its superhydrophobic properties after enduring several rigorous tests. Additionally, the photothermal conversion efficiency reaches up to 67.31%, and the temperature increases to 95.6 °C under 1.5 sun illumination for 600 s in ambient conditions (Tr = 7 °C). The ice melting time is only 120 s under 1 sun illumination at −15 °C. Consequently, the PASS sample stands as a preeminent strategy for anti-icing and deicing pursuits owing to its exceptional photothermal proficiency, superhydrophobicity, and enduring robustness.
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来源期刊
Langmuir
Langmuir 化学-材料科学:综合
CiteScore
6.50
自引率
10.30%
发文量
1464
审稿时长
2.1 months
期刊介绍: Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).
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