Ultra-stretchable, antifreezing, and self-healing ZnO nanofluid-based hydrogels for triboelectric nanogenerators and self-powered biosensors
Ultra-stretchable, antifreezing, and self-healing ZnO nanofluid-based hydrogels for triboelectric nanogenerators and self-powered biosensors
复制标题
DOI：
10.1016/j.eurpolymj.2023.112500
复制
发表时间：
2023-10
影响因子：
6
通讯作者：
Zhijian Zhou;Wenguo Sun;Chunzi Lv;Xingshuai Gu;Junping Ju;Yuqi Li
中科院分区：
文献类型：
--
作者：
Zhijian Zhou;Wenguo Sun;Chunzi Lv;Xingshuai Gu;Junping Ju;Yuqi Li
灵活、自我修复和高灵敏度的可穿戴式自供电传感器对于推动可穿戴电子产品的快速发展至关重要。本文以2-丙烯酰胺基-2-甲基丙磺酸和聚乙二醇二丙烯酸酯为原料，合成了一种基于氧化锌纳米流体的水凝胶。AP-Zn水凝胶具有优异的延伸性(2750%)、高电导率(1.37%S/m−1)、防冻能力(−20℃)和自愈能力。此外，利用AP-Zn水凝胶构建了具有优异电输出性能的摩擦电纳米发电机(AP-Zn-Teng)，其开路电压、短路电流和最大功率密度分别为135V、4.0W/mμ和1.39W/m−2。作为一种压力传感器，AP-Zn-Teng的检测下限为0.025 kpa，甚至可以检测到不同音调的声带振动。因此，AP-Zn-Teng自供电传感器可以用于检测人类行为。这些结果表明，AP-锌水凝胶在可穿戴电源技术和自供电生物传感器方面具有很大的前景。
Flexible, self-healing, and highly sensitive wearable self-powered sensors are essential for promoting the rapid development of wearable electronics. Herein, a hydrogel based on zinc oxide nanofluids (AP-Zn) was synthesized using 2-acrylamido-2-methylpropane sulfonic acid and polyethylene glycol diacrylate. The AP-Zn hydrogel exhibits excellent stretchability (2750 %), high conductivity (1.37 S m−1), antifreezing capabilities (−20 °C), and self-healing abilities. Furthermore, the AP-Zn hydrogel was utilized to construct a triboelectric nanogenerator (AP-Zn-TENG), which demonstrated outstanding electrical output performance, with an open-circuit voltage, short-circuit current, and maximum power density of 135 V, 4.0 μA, and 1.39 W m−2, respectively. As a pressure sensor, the AP-Zn-TENG has a detection limit of 0.025 kPa and can even detect vocal cord vibrations of different pitches. Therefore, the AP-Zn-TENG self-powered sensor can be employed for detecting human behavior. These results suggest that the AP-Zn hydrogel holds great promise in wearable power technology and self-powered biosensors.