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dc.contributor.authorAssen, Ayalew Hussen Assen
dc.contributor.authorYassine, Omar
dc.contributor.authorShekhah, Osama
dc.contributor.authorEddaoudi, Mohamed
dc.contributor.authorSalama, Khaled N.
dc.date.accessioned2017-08-21T06:28:05Z
dc.date.available2017-08-21T06:28:05Z
dc.date.issued2017-08-28
dc.identifier.citationAssen AH, YASSINE O, Shekhah O, Eddaoudi M, Salama KN (2017) MOFs for the Sensitive Detection of Ammonia: Deployment of fcu-MOF Thin-Films as Effective Chemical Capacitive Sensors. ACS Sensors. Available: http://dx.doi.org/10.1021/acssensors.7b00304.
dc.identifier.issn2379-3694
dc.identifier.issn2379-3694
dc.identifier.pmid28809112
dc.identifier.doi10.1021/acssensors.7b00304
dc.identifier.urihttp://hdl.handle.net/10754/625366
dc.description.abstractThis work reports on the fabrication and deployment of a select metal-organic framework (MOF) thin film as an advanced chemical capacitive sensor for the sensing/detection of ammonia (NH3) at room temperature. Namely, the MOF thin film sensing layer consists of a rare-earth (RE) MOF (RE-fcu-MOF) deposited on a capacitive interdigitated electrode (IDE). Purposely, the chemically stable naphthalene-based RE-fcu-MOF (NDC-Y-fcu-MOF) was elected and prepared/arranged as a thin film on a pre-functionalized capacitive IDE via the solvothermal growth method. Unlike earlier realizations, the fabricated MOF-based sensor showed a notable detection sensitivity for NH3 at concentrations down to 1 ppm, with a detection limit appraised to be around 100 ppb (at room temperature) even in the presence of humidity and/or CO2. Distinctly, the NDC-Y-fcu-MOF based sensor exhibited the required stability to NH3, in contract to other reported MOFs, and a remarkable detection selectivity towards NH3 vs. CH4, NO2, H2 and C7H8. The NDC-Y-fcu-MOF based sensor exhibited excellent performance for sensing ammonia for simulated breathing system in the presence of the mixture of carbon dioxide and/or humidity (water vapor), with no major alteration in the detection signal.
dc.description.sponsorshipThe authors would like to thank Dr Y. Belmabkhout, Dr. H. Omran, and Mr C. Sapsanis for their technical support and helpful advice. This work was partially sponsored by the Advanced Membranes and Porous Materials (AMPM) FCC project, FCC/1/1972-05-01.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acssensors.7b00304
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Sensors, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acssensors.7b00304.
dc.subjectMOFs
dc.subjectSensing
dc.subjectAmmonia
dc.subjectCapacitive sensors
dc.subjectthin films
dc.titleMOFs for the Sensitive Detection of Ammonia: Deployment of fcu-MOF Thin-Films as Effective Chemical Capacitive Sensors.
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Science Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentFunctional Materials Design, Discovery and Development (FMD3)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSensors Lab
dc.identifier.journalACS Sensors
dc.eprint.versionPost-print
kaust.personAssen, Ayalew Hussen Assen
kaust.personYassine, Omar
kaust.personShekhah, Osama
kaust.personEddaoudi, Mohamed
kaust.personSalama, Khaled N.
dc.date.published-online2017-08-28
dc.date.published-print2017-09-22


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