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dc.contributor.authorKosuru, Lakshmoji
dc.contributor.authorBouchaala, Adam M.
dc.contributor.authorJaber, Nizar
dc.contributor.authorYounis, Mohammad I.
dc.date.accessioned2016-09-04T08:27:07Z
dc.date.available2016-09-04T08:27:07Z
dc.date.issued2016-06-28
dc.identifier.citationHumidity Detection Using Metal Organic Framework Coated on QCM 2016, 2016:1 Journal of Sensors
dc.identifier.issn1687-725X
dc.identifier.issn1687-7268
dc.identifier.doi10.1155/2016/4902790
dc.identifier.urihttp://hdl.handle.net/10754/619772
dc.description.abstractQuartz crystal microbalance (QCM) coated with poly-4-vinylpyridine (PVP) and metal organic framework HKUST-1 are investigated and compared for humidity sensing. Drop casting method is employed to coat the PVP and HKUST-1 solutions onto the surface of a quartz crystal microbalance. The resonance frequencies of these sensors with varying relative humidity (RH) from 22% RH to 69% RH are measured using impedance analysis method. The sensitivity, humidity hysteresis, response, and recovery times of these sensors are studied. The sensitivities of uncoated, PVP, and HKUST-1 coated QCM sensors are 7 Hz, 48 Hz, and 720 Hz, respectively, in the range of 22% RH–69% RH. The extraction of desorption rate and adsorption energy associated with the adsorption and desorption of water molecules on these surfaces reveals that HKUST-1 has better sensing properties than PVP and uncoated QCM sensors. In this work, the HKUST-1 coated QCM is shown to be a promising material for moisture detection.
dc.description.sponsorshipThe authors are thankful to Dr. Osama Shekhah and Professor Mohamed Eddaoudi for providing and helping in preparing HKUST-1. This research has been supported by KAUST.
dc.language.isoen
dc.publisherHindawi Publishing Corporation
dc.relation.urlhttp://www.hindawi.com/journals/js/2016/4902790/
dc.rightsThis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0/
dc.titleHumidity Detection Using Metal Organic Framework Coated on QCM
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalJournal of Sensors
dc.eprint.versionPublisher's Version/PDF
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personKosuru, Lakshmoji
kaust.personBouchaala, Adam M.
kaust.personJaber, Nizar
kaust.personYounis, Mohammad I.
refterms.dateFOA2018-06-13T12:05:12Z


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