Formaldehyde Gas Sensor Based on Hybrid Film: Graphene/Enzyme

Jungyoon Kim, Tianhong Cui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Through a simple fabrication process, we fabricate tiny and cheap formaldehyde gas sensor. To do that, we used the hybrid film that consists of Chemical Vapor Deposition (CVD) graphene and formaldehyde dehydrogenase (FALDH). Since graphene sensitively shows an electrical response with the concentration of hydrogen cation in the solution, the novel graphene-based gas sensors can quickly respond with formaldehyde gas. The sensor shows the response with a low concentration of formaldehyde gas up to ppb level. It also has a great selectivity for the formaldehyde gas because it is based on the enzyme reaction. The mechanism of the reaction can be clearly explained by chemical equations.

Original languageEnglish (US)
Title of host publication2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2396-2399
Number of pages4
ISBN (Electronic)9781728120072
DOIs
StatePublished - Jun 2019
Event20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII - Berlin, Germany
Duration: Jun 23 2019Jun 27 2019

Publication series

Name2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII

Conference

Conference20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII
CountryGermany
CityBerlin
Period6/23/196/27/19

Keywords

  • CVD graphene
  • FALDH
  • Formaldehyde
  • Gas sensor

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