Textile Beeswax Triboelectric Nanogenerator as Self-Powered Sound Detectors and Mechano-Acoustic Energy Harvesters
Textile Beeswax Triboelectric Nanogenerator as Self-Powered Sound Detectors and Mechano-Acoustic Energy Harvesters
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DOI：
10.1016/j.nanoen.2023.109109
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发表时间：
2023-11
期刊：
影响因子：
17.6
通讯作者：
E. Kovalska;H. T. Lam;Z. Saâdi;R. Mastria;Ana I. S. Neves;Saverio Russo;M. Craciun
中科院分区：
文献类型：
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作者：
E. Kovalska;H. T. Lam;Z. Saâdi;R. Mastria;Ana I. S. Neves;Saverio Russo;M. Craciun
嵌入纺织品中的自供电传感技术的发展是实现全新医疗保健、福祉和国防解决方案的基石。这些进步的垫脚石是一类新的非常规能量采集器，能够将我们生活环境中目前未使用的来源，如声音和振动转化为电能。这些发电机必须灵活，机械坚固，重量轻，有弹性，并且应该产生可行的电力输出。在这里，我们提出了一种新型的纺织品集成的摩擦电纳米发电机能够感测和收集低频声能。这些能力是通过可持续材料的独特组合实现的，例如蜂蜡作为摩擦电层和石墨烯基电极，赋予多种功能。具体来说，我们的设备可以感知10-200 Hz频率范围内的地面声音，检测人类的声音，识别人类的情感，并从环境噪音和振动中获取能量。此外，摩擦电层的动态分子相互作用和疏水性质提供了固有的热修复、防水和自清洁特征，确保了设备在弯曲和潮湿环境中的功能。
The development of self-powered sensing technologies embedded in textiles is a cornerstone for enabling radically novel healthcare, well-being and defence solutions. The steppingstone for these advances is a new class of unconventional energy harvesters able to convert presently unused sources from our living environment such as sounds and vibrations into electrical energy. These generators would have to be flexible, mechanically robust, lightweight, resilient and they should produce a viable electric output. Here we present a novel textile-integrated triboelectric nanogenerator capable of sensing and harvesting low-frequency acoustic energy. These capabilities are enabled by a unique combination of sustainable materials such as beeswax as a triboelectric layer and graphene-based electrode, endowing multiple functionalities. Specifically, our device can sense ground-borne sounds in the 10–200 Hz frequency range, detect human voices, recognise human emotions, and harvest energy from environmental noise and vibrations. Additionally, the dynamic molecular interactions and the hydrophobic nature of the triboelectric layer provide intrinsic thermal healing, water-repellent, and self-cleaning features, ensuring device functionality in bending and humidity environments.