A Wearable Toxic Gas‐Monitoring Device Based on Triboelectric Nanogenerator for Self‐Powered Aniline Early Warning,Advanced Materials Technologies

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A Wearable Toxic Gas‐Monitoring Device Based on Triboelectric Nanogenerator for Self‐Powered Aniline Early Warning
Advanced Materials Technologies ( IF 6.4 ) Pub Date : 2020-02-27 , DOI: 10.1002/admt.201901087
Junyu Chang _{1,

2} , Hu Meng ₁ , Chunsheng Li ₁ , Jianmei Gao _{1,

2} , Shuqin Chen _{1,

2} , Qi Hu _{1,

2} , Hui Li ₁ , Liang Feng ₁

Affiliation

With the increasingly serious air pollution and rapid progress in nanotechnology, portable and wearable sensing devices are becoming indispensable to people's lives. The triboelectric nanogenerator (TENG) captures wide attention due to its safe, highly efficient, and environmentally friendly way to drive portable electronics. In this work, by adjusting the doping ratio and optimizing the annealing temperature, a new kind of low‐resistant rGO–In₂O₃ semiconductor composite is synthesized and innovatively used as TENG electrode. The as‐fabricated rGO‐In₂O₃‐TENG is used as a monitoring unit and exhibits advantages of excellent linear sensibility (200–1200 ppm), good response (∆I/I_a = 0.26, 600 ppm), and outstanding selectivity toward aniline toxic gas. More importantly, compared with the common room‐temperature semiconductor gas sensor, the self‐powered rGO‐In₂O₃‐TENG monitoring unit is endowed with much shorter response/recovery time. By combining rGO‐In₂O₃‐TENG monitoring unit, conversion circuit, and visualization warning lights, a visual wearable aniline early‐warning device is fabricated. The present results provide a novel idea for developing a new type of aniline sensor with self‐powered property of low cost and portability, and may also be extended to the design of other toxic gases‐monitoring system.

中文翻译：

基于摩擦纳米发电机的可穿戴式有毒气体监测装置，用于自供电苯胺预警

随着日益严重的空气污染和纳米技术的飞速发展，便携式和可穿戴式传感设备已成为人们生活中必不可少的部分。摩擦电动纳米发电机（TENG）由于其安全，高效和环保的方式来驱动便携式电子设备而受到广泛关注。在这项工作中，通过调整掺杂比例和优化退火温度，合成了一种新型的低电阻rGO-In ₂ O ₃半导体复合材料，并将其创新地用作TENG电极。制成的rGO -In ₂ O ₃ -TENG被用作监视单元，并具有出色的线性灵敏度（200-1200 ppm），响应良好（∆ I / I _a= 0.26，600 ppm），并且对苯胺有毒气体具有出色的选择性。更重要的是，与普通的室温半导体气体传感器相比，自供电的rGO -In ₂ O ₃ -TENG监测单元具有更短的响应/恢复时间。通过组合rGO -In ₂ O ₃ -TENG监视单元，转换电路和可视化警告灯，可以制造出可视的可穿戴苯胺预警设备。目前的研究结果为开发一种新型的苯胺传感器提供了一个新颖的思路，该传感器具有低成本和便携性的自供电特性，并且还可以扩展到其他有毒气体监测系统的设计中。

更新日期：2020-02-27

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