Smart Resonant Gas Sensor and Switch Operating in Air With Metal-Organic Frameworks Coating

Handle URI:
http://hdl.handle.net/10754/626796
Title:
Smart Resonant Gas Sensor and Switch Operating in Air With Metal-Organic Frameworks Coating
Authors:
Jaber, Nizar; Ilyas, Saad ( 0000-0002-9389-9718 ) ; Shekhah, Osama ( 0000-0003-1861-9226 ) ; Eddaoudi, Mohamed ( 0000-0003-1916-9837 ) ; Younis, Mohammad I. ( 0000-0002-9491-1838 )
Abstract:
We report a resonant gas sensor, uniformly coated with a metal-organic framework (MOF), and excited it near the higher order modes for a higher attained sensitivity. Also, switching upon exceeding a threshold value is demonstrated by operating the resonator near the bifurcation point and the dynamic pull-in instabilities. The resonator is based on an electrostatically excited clamped-clamped microbeam. The microbeam is fabricated from a polyimide layer coated from the top with Cr/Au and from the bottom with Cr/Au/Cr layer. The geometry of the resonator is optimized to reduce the effect of squeeze film damping, thereby allowing operation under atmospheric pressure. The electrostatic electrode is designed to enhance the excitation of the second mode of vibration with the minimum power required. Significant frequency shift (kHz) is demonstrated for the first time upon water vapor, acetone, and ethanol exposure due to the MOF functionalization and the higher order modes excitation. Also, the adsorption dynamics and MOF selectivity is investigated by studying the decaying time constants of the response upon gas exposure.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Advanced Membranes and Porous Materials Research Center; Chemical Science Program
Citation:
Jaber NR, Ilyas S, Shekhah O, Eddaoudi M, Younis MI (2017) Smart Resonant Gas Sensor and Switch Operating in Air With Metal-Organic Frameworks Coating. Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems. Available: http://dx.doi.org/10.1115/DETC2017-67823.
Publisher:
ASME
Journal:
Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems
Conference/Event name:
ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2017
Issue Date:
3-Nov-2017
DOI:
10.1115/DETC2017-67823
Type:
Conference Paper
Additional Links:
http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2662158
Appears in Collections:
Conference Papers; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorJaber, Nizaren
dc.contributor.authorIlyas, Saaden
dc.contributor.authorShekhah, Osamaen
dc.contributor.authorEddaoudi, Mohameden
dc.contributor.authorYounis, Mohammad I.en
dc.date.accessioned2018-01-15T06:35:09Z-
dc.date.available2018-01-15T06:35:09Z-
dc.date.issued2017-11-03en
dc.identifier.citationJaber NR, Ilyas S, Shekhah O, Eddaoudi M, Younis MI (2017) Smart Resonant Gas Sensor and Switch Operating in Air With Metal-Organic Frameworks Coating. Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems. Available: http://dx.doi.org/10.1115/DETC2017-67823.en
dc.identifier.doi10.1115/DETC2017-67823en
dc.identifier.urihttp://hdl.handle.net/10754/626796-
dc.description.abstractWe report a resonant gas sensor, uniformly coated with a metal-organic framework (MOF), and excited it near the higher order modes for a higher attained sensitivity. Also, switching upon exceeding a threshold value is demonstrated by operating the resonator near the bifurcation point and the dynamic pull-in instabilities. The resonator is based on an electrostatically excited clamped-clamped microbeam. The microbeam is fabricated from a polyimide layer coated from the top with Cr/Au and from the bottom with Cr/Au/Cr layer. The geometry of the resonator is optimized to reduce the effect of squeeze film damping, thereby allowing operation under atmospheric pressure. The electrostatic electrode is designed to enhance the excitation of the second mode of vibration with the minimum power required. Significant frequency shift (kHz) is demonstrated for the first time upon water vapor, acetone, and ethanol exposure due to the MOF functionalization and the higher order modes excitation. Also, the adsorption dynamics and MOF selectivity is investigated by studying the decaying time constants of the response upon gas exposure.en
dc.publisherASMEen
dc.relation.urlhttp://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2662158en
dc.titleSmart Resonant Gas Sensor and Switch Operating in Air With Metal-Organic Frameworks Coatingen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentChemical Science Programen
dc.identifier.journalVolume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystemsen
dc.conference.date2017-08-06 to 2017-08-09en
dc.conference.nameASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2017en
dc.conference.locationCleveland, OH, USAen
kaust.authorJaber, Nizaren
kaust.authorIlyas, Saaden
kaust.authorShekhah, Osamaen
kaust.authorEddaoudi, Mohameden
kaust.authorYounis, Mohammad I.en
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