Flexible Silk Fibroin-Based Triboelectric Nanogenerators with Thermal Management Capabilities for Temperature Regulation and Self-Powered Monitoring

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2024-11-27 DOI:10.1021/acs.nanolett.4c0526710.1021/acs.nanolett.4c05267

Shiyu Lu, Shuai Zheng, Qin Li, Mengqi Wang, Nan Mao, Jiani Li, Jinxin Liu*, Jinyou Lin* and Yuqing Liu*,

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引用次数: 0

Abstract

Flexible triboelectric nanogenerators (TENGs) are highly advantageous for human-centered monitoring due to their self-sustaining energy and high output performance. However, temperature fluctuations that limit thermal comfort have hindered their practical advancement. In this study, flexible titanium dioxide-silk fibroin@phase change microcapsule nanofiber films (TiO₂-SF@PCM NFs) were successfully developed using an efficient electro-blown spinning (EBS) technique, with exceptional triboelectric output and superior temperature regulation capabilities. Our design achieved cooling effects of approximately 10 °C and provided thermal insulation of about 2.2 °C. Notably, applying the TiO₂-SF@PCM NFs to a model car produced an impressive cooling effect of 22 °C. Furthermore, a single-electrode triboelectric sensor based on TiO₂-SF@PCM NFs achieved a peak output power of ∼272 μW/m² and exceptional stability over 1000 output cycles. This study presents a promising strategy for the scalable production of flexible composite nanofiber films, effective in both temperature regulation and self-powered monitoring, highlighting their potential for use as thermal comfort sensors.

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具有热管理能力的柔性丝素基摩擦电纳米发电机，用于温度调节和自供电监测

柔性摩擦电纳米发电机（TENGs）由于其能量的自维持和高输出性能，在以人为中心的监测中具有很大的优势。然而，限制热舒适的温度波动阻碍了它们的实际进展。在这项研究中，利用高效的电吹纺丝（EBS）技术，成功地开发了柔性二氧化钛丝fibroin@phase变化微胶囊纳米纤维薄膜（TiO2-SF@PCM NFs），该薄膜具有优异的摩擦电输出和优越的温度调节能力。我们的设计实现了约10°C的冷却效果，并提供了约2.2°C的隔热。值得注意的是，将TiO2-SF@PCM NFs应用于模型汽车产生了令人印象深刻的22°C的冷却效果。此外，基于TiO2-SF@PCM NFs的单电极摩擦电传感器的峰值输出功率为~ 272 μW/m2，并且在1000个输出周期内具有出色的稳定性。这项研究为柔性复合纳米纤维薄膜的规模化生产提出了一种有前途的策略，该薄膜在温度调节和自供电监测方面都很有效，突出了它们作为热舒适传感器的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.