A graphene-based composite for selective detection of ethylene at ambient environment

Fowzia Akhter*, H. R. Siddiquei, S. C. Mukhopadhyay

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

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 ~ 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.

Original languageEnglish
Title of host publication2021 IEEE SENSORS proceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Electronic)9781728195018
ISBN (Print)9781728195025
DOIs
Publication statusPublished - 2021
Event20th IEEE Sensors, SENSORS 2021 - Virtual, Online, Australia
Duration: 31 Oct 20214 Nov 2021

Publication series

Name
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference20th IEEE Sensors, SENSORS 2021
Country/TerritoryAustralia
CityVirtual, Online
Period31/10/214/11/21

Keywords

  • VOC
  • ethylene
  • EIS
  • rGO-SnO₂

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