Industrial Gases Identification Using Graphene-based Gas Sensors: NH3and PH3as an Example

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review



Both ammonia (NH3) and phosphine (PH3) play a significant role in an extensive range of industrial processes, while they are harmful to human health even at very low concentration. So far, a variety of gas sensors have been developed to detect them in an industrial environment aimed to protect the health of workers at their work place. Among various types of gas sensors, chemiresistive type gas sensors have attracted considerable interest due to its characteristics, such as simple fabrication, high sensitivity, high reliability, etc. Nevertheless, there are still some limitations, such as, high power consumption resulted from high operating temperatures, and most sensors are solely dedicated to an individual gas monitoring. In this work, we present the development of highly sensitive and highly discriminative graphene-based gas sensors for gas detection and identification at room temperature. Graphene is exfoliated by a liquid phase approach and functionalized by copper phthalocyanine derivate (CuPc). Leveraging machine learning techniques, graphene-based gas sensors demonstrate an excellent gas identification performance towards NH3 and PH3 at an ultralow concentration (ppb level). This work could pave the path to design highly sensitive and smart gas sensors for a wide range of gases.


Original languageEnglish
Title of host publication2022 IEEE International Symposium on Olfaction and Electronic Nose (ISOEN)
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (electronic)978-1-6654-5860-3
ISBN (print)978-1-6654-5861-0
Publication statusPublished - 2022

Publication series

SeriesISOCS/IEEE International Symposium on Olfaction and Electronic Nose (ISOEN)


Title2022 IEEE International Symposium on Olfaction and Electronic Nose, ISOEN 2022
Duration29 May - 1 June 2022

External IDs

ORCID /0000-0002-4349-793X/work/142245517
ORCID /0000-0002-3007-8840/work/142247146
ORCID /0000-0002-9899-1409/work/142249213


Sustainable Development Goals


  • ammonia, gas identification, phosphine, Smart gas sensors