MOFs for the Sensitive Detection of Ammonia: Deployment of fcu-MOF Thin-Films as Effective Chemical Capacitive Sensors.
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Chemical Science Program
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Functional Materials Design, Discovery and Development (FMD3)
Physical Sciences and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/625366
MetadataShow full item record
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.
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.
SponsorsThe 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.
PublisherAmerican Chemical Society (ACS)
CollectionsArticles; Advanced Membranes and Porous Materials Research Center; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division; Functional Materials Design, Discovery and Development (FMD3); Functional Materials Design, Discovery and Development (FMD3); Electrical Engineering Program; Electrical Engineering Program; Chemical Science Program; Chemical Science Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
- H<sub>2</sub> S Sensors: Fumarate-Based fcu-MOF Thin Film Grown on a Capacitive Interdigitated Electrode.
- Authors: Yassine O, Shekhah O, Assen AH, Belmabkhout Y, Salama KN, Eddaoudi M
- Issue date: 2016 Dec 19
- A Highly Stable Two-Dimensional Copper(II) Organic Framework for Proton Conduction and Ammonia Impedance Sensing.
- Authors: Sun Z, Yu S, Zhao L, Wang J, Li Z, Li G
- Issue date: 2018 Jul 25
- Insights on Capacitive Interdigitated Electrodes Coated with MOF Thin Films: Humidity and VOCs Sensing as a Case Study.
- Authors: Sapsanis C, Omran H, Chernikova V, Shekhah O, Belmabkhout Y, Buttner U, Eddaoudi M, Salama KN
- Issue date: 2015 Jul 24
- Tunable Rare Earth fcu-MOF Platform: Access to Adsorption Kinetics Driven Gas/Vapor Separations via Pore Size Contraction.
- Authors: Xue DX, Belmabkhout Y, Shekhah O, Jiang H, Adil K, Cairns AJ, Eddaoudi M
- Issue date: 2015 Apr 22
- On-Chip Tailorability of Capacitive Gas Sensors Integrated with Metal-Organic Framework Films.
- Authors: Yuan H, Tao J, Li N, Karmakar A, Tang C, Cai H, Pennycook SJ, Singh N, Zhao D
- Issue date: 2019 Oct 1