Self-Powered Vehicle Emission Testing System Based on Coupling of Triboelectric and Chemoresistive Effects

被引：130

作者：

Shen, Qingqing ^{[1
]}

Xie, Xinkai ^{[1
]}

Peng, Mingfa ^{[1
]}

Sun, Na ^{[1
]}

Shao, Huiyun ^{[1
]}

Zheng, Hechuang ^{[1
]}

Wen, Zhen ^{[1
]}

Sun, Xuhui ^{[1
]}

机构：

[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Joint Int Res Lab Carbon Based Funct Mat & Device, Suzhou 215123, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2018年 / 28卷 / 10期

基金：

国家重点研发计划; 中国博士后科学基金;

关键词：

chemoresistive effects; gas sensors; self-powered chemical sensing; triboelectric nanogenerators; vehicle emission tests; BROAD FREQUENCY BAND; CO3O4 NANOROD ARRAYS; BLUE ENERGY; GAS SENSORS; NANOGENERATOR; GENERATOR; DRIVEN;

D O I：

10.1002/adfm.201703420

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Traditional triboelectric nanogenerator (TENG)-based self-powered chemical-sensing systems are demonstrated by measuring the triboelectric effect of the sensing materials altered by the external stimulus. However, the limitations of triboelectric sensing materials and instable outputs caused by ambient environment significantly restrict their practical applications. In this work, a stable and reliable self-powered chemical-sensing system is proposed by coupling triboelectric effect and chemoresistive effect. The whole system is constructed as the demo of a self-powered vehicle emission test system by connecting a vertical contact-separate mode TENG as energy harvester with a series-connection resistance-type gas sensor as exhaust detector and the parallel-connection commercial light-emitting diodes (LEDs) as alarm. The output voltage of TENG varies with the variable working states of the gas sensor and then directly reflects on the on/off status of the LEDs. The working mechanism can be ascribed to the specific output characteristics of the TENG tuned by the load resistance of the gas sensor, which is responded to the gas environment. This self-powered sensing system is not affected by working frequency and requires no external power supply, which is favorable to improve the stability and reliability for practical application.

引用

页数：8

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