Lobelia-Inspired Photothermal Storage Flexible Film for Efficient Deicing.

IF 10.7 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Small Methods Pub Date : 2025-01-26 DOI:10.1002/smtd.202402006

Yidan Zhang, Zhiguang Guo

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引用次数: 0

Abstract

The insufficient density and discontinuity of solar energy of photothermal superhydrophobic flexible film seriously affect the practical application. Light energy harvesting and heat energy storage are effective ways to solve this problem. Inspired by the viscous temperature-regulating material within the inflorescence of Lobelia telekii and the arrangement of bracts on its surface, a flexible film for photoheat storage is proposed that integrated a three-order photoheat trap and one-order heat storage. The surface of the flexible film features microcone array with micro-grooves, modified carbon nanotubes (MCNTs), and layered structures on microcapsules, forming a three-level photoheat trap. The generated heat increases the surface temperature and is partially absorbed by the heat storage material inside the microcapsule. The stable photothermal temperature of polyurethane films with microcone structure (S_x) was elevated by 3-5 °C compared to without it (Flat-S_x), while the stable photothermal temperature of MCNTs-S_x (Flat-S_x with MCNTs) exceeds that of S_x by 2-6 °C. The ice particles on the MCNTs-S_0.45 completely dissolved within 180 s under xenon lamp light source. Meanwhile, MCNTs-S_x demonstrated superhydrophobicity and outstanding anti-fouling capabilities. The fabricated MCNTs-S_x realized biomimicry of Lobelia telekii in both structure and performance, providing a strategy for biomimetic photothermal de-icing.

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来源期刊

Small Methods Materials Science-General Materials Science

CiteScore

17.40

自引率

1.60%

发文量

347

期刊介绍： Small Methods is a multidisciplinary journal that publishes groundbreaking research on methods relevant to nano- and microscale research. It welcomes contributions from the fields of materials science, biomedical science, chemistry, and physics, showcasing the latest advancements in experimental techniques. With a notable 2022 Impact Factor of 12.4 (Journal Citation Reports, Clarivate Analytics, 2023), Small Methods is recognized for its significant impact on the scientific community. The online ISSN for Small Methods is 2366-9608.