A Graphene-based Composite for Selective Detection of Ethylene at Ambient Environment

被引：9

作者：

Akhter, Fowzia ^{[1
]}

Siddiquei, H. R. ^{[1
]}

Mukhopadhyay, S. C. ^{[1
]}

机构：

[1] Macquarie Univ, Dept Engn, Sydney, NSW 2109, Australia

来源：

2021 IEEE SENSORS | 2021年

关键词：

VOC; ethylene; EIS; rGO-SnO2; VOLATILE ORGANIC-COMPOUNDS; SENSORS; TEMPERATURE;

D O I：

10.1109/SENSORS47087.2021.9639740

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Detection and monitoring of volatile organic compounds (VOCs) are highly demanded for various applications such as environment monitoring, food quality control, and clinic treatment. Most of the commercially available sensors provide the amount of total volatile organic components (TVOC), whereas the VOCs are the combination of ethylene, acetone, ethanol, acetic acid, and formaldehyde. Different VOCs impacts human health differently. This paper presents a graphene-based composite for selective detection of ethylene using reduced graphene oxide (rGO) and tin oxide (SnO2). Electrochemical Impedance Spectroscopy (EIS) is applied to characterise the coated sensor for a wide range (10ppb similar to 300ppb) of ethylene concentrations. The response and recovery time is 3s and 6s, respectively. Moreover, the outcomes of the cross-sensitivity test are highly promising to use the sensor for various environmental and biomedical applications.

引用

页数：4

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