高性能柔性压电聚合物复合材料纳米发电机用碳纳米管

A. Bouhamed, Ajay, Yudi Shi, S. Naifar, J. R. Bautista-Quijano, O. Kanoun
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引用次数: 4

摘要

近年来,将人体运动等机械能转化为电能的柔性可穿戴纳米发电机(NGs)的需求受到了广泛关注。纳米粒子结构简单,极化后具有优异的压电性能。然而,两极分化是非常漫长和不安全的。为了避免这种情况,提出的解决方案是掺杂多壁碳纳米管(MWCNTs),以更好地分布压电纳米颗粒。本文采用溶液混合和模具铸造的方法制备了压电纳米复合材料发生器。通过形态学和力学测试对MWCNTs的影响进行了比较研究。由于纳米粒子在聚合物基体内分布的高度均匀性,这两种纳米发电机都表现出良好的性能,表明了适应的制造工艺的效率。此外,在压电复合材料中掺杂多壁碳纳米管(MWCNTs)后,输出电压比未掺杂碳纳米管(CNTs)的压电复合材料提高了约20%,输出电压为6.6 V,输出功率为~37.87 μW,负载电阻约为660 kΩ,这是由于纳米颗粒的分布增强和电-机械耦合的改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Carbon nanotubes for high performance flexible piezoelectric polymer composite nanogenerators
Recently, the demand for flexible and wearable nanogenerators (NGs) have been paid great of attention to convert mechanical energy such as human motion into electrical energy. NGs are known by their simple structure and excellent piezoelectric performance after polarization. However, the polarization is very long and unsafe. In order to avoid that, the proposed solution was to dope multiwalled carbon nanotubes (MWCNTs) for better distribution of piezoelectric nanoparticles. In this work, piezoelectric nanocomposite generators were prepared using solution mixing and mold casting. A comparative study was performed to investigate the impact of MWCNTs via morphological and mechanical testing. Both nanogenerators shows good performance due to high uniformity of nanoparticle distribution within the polymer matrix showing the efficiency of the adapted fabrication process. In addition, doping multiwalled carbon nanotube (MWCNTs) within the piezoelectric nanocomposite leads to increase the output voltage by about 20% comparing to the NG without carbon nanotube (CNTs) which corresponds to 6.6 V and a power of ~37.87 μW at a load resistance of about 660 kΩ due to the enhanced distribution of the nanoparticle and better electro-mechanical coupling.
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