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 Science and Engineering (PSE) Division
Online Publication Date2017-08-28
Print Publication Date2017-09-22
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)
- 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
- Methanol and Humidity Capacitive Sensors Based on Thin Films of MOF Nanoparticles.
- Authors: Andrés MA, Vijjapu MT, Surya SG, Shekhah O, Salama KN, Serre C, Eddaoudi M, Roubeau O, Gascón I
- Issue date: 2020 Jan 22
- 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
- Centimeter-Scale Pillared-Layer Metal-Organic Framework Thin Films Mediated by Hydroxy Double Salt Intermediates for CO<sub>2</sub> Sensor Applications.
- Authors: Kim KJ, Ellis JE, Howard BH, Ohodnicki PR
- Issue date: 2021 Jan 13
- 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