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© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

We report on the deployment of MEMS static bifurcation (DC) sensors for the detection of volatile organic compounds (VOCs): hydrogen sulfide and formaldehyde. We demonstrate a sensor that can detect as low as a few ppm of hydrogen sulfide. We also demonstrate a sensor array that can selectively detect formaldehyde in the presence of benzene, a closely related interferent. Toward that end, we investigate the sensitivity and selectivity of two detector polymers—polyaniline (PANI) and poly (2,5-dimethyl aniline) (P25DMA)—to both gases. A semiautomatic method is developed to functionalize individual sensors and sensor arrays with the detector polymers. We found that the sensor array can selectively sense 1 ppm of formaldehyde in the presence of benzene.

Details

Title
Detection of Volatile Organic Compounds by Using MEMS Sensors
Author
Arabi, Mohamed 1   VIAFID ORCID Logo  ; Alghamdi, Majed 2   VIAFID ORCID Logo  ; Kabel, Khalid 3   VIAFID ORCID Logo  ; Labena, Ahmed 4   VIAFID ORCID Logo  ; Gado, Walaa S 5   VIAFID ORCID Logo  ; Mavani, Bhoomi 6 ; Scott, Alison J 6   VIAFID ORCID Logo  ; Penlidis, Alexander 6   VIAFID ORCID Logo  ; Yavuz, Mustafa 7 ; Abdel-Rahman, Eihab 1   VIAFID ORCID Logo 

 Department of Systems Design Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada; [email protected] 
 National Center for Electronics and Defense Systems, King Abdulazaiz City for Science and Technology (KACST), Riyadh 12354, Saudi Arabia 
 Department of Petroleum Applications, Egyptian Petroleum Research Institute (EPRI), Cairo 11727, Egypt; [email protected] 
 Department of Processes Design & Development, Egyptian Petroleum Research Institute (EPRI), Cairo 11727, Egypt; [email protected] 
 Department of Petrochemicals, Egyptian Petroleum Research Institute (EPRI), Cairo 11727, Egypt; [email protected] 
 Department of Chemical Engineering, Institute for Polymer Research (IPR), University of Waterloo, Waterloo, ON N2L 3G1, Canada; [email protected] (B.M.); [email protected] (A.J.S.); [email protected] (A.P.) 
 Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada; [email protected] 
First page
4102
Publication year
2022
Publication date
2022
Publisher
MDPI AG
e-ISSN
14248220
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2674395058
Copyright
© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.