Concurrent Sensing of CO2 and H2O from Air Using Ultramicroporous Fluorinated Metal–Organic Frameworks: Effect of Transduction Mechanism on the Sensing Performance
Nanaiah, Karumbaiah Chappanda
Salama, Khaled N.
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)
KAUST Catalysis Center (KCC)
Physical Science and Engineering (PSE) Division
Online Publication Date2018-12-10
Print Publication Date2019-01-09
Permanent link to this recordhttp://hdl.handle.net/10754/631585
MetadataShow full item record
AbstractConventional materials for gas/vapor sensing are limited to a single probe detection ability for specific analytes. However, materials capable of concurrent detection of two different probes in their respective harmful levels and using two types of sensing modes have yet to be explored. In particular, the concurrent detection of uncomfortable humidity levels and CO concentration (400-5000 ppm) in confined spaces is of extreme importance in a great variety of fields, such as submarine technology, aerospace, mining, and rescue operations. Herein, we report the deliberate construction and performance assessment of extremely sensitive sensors using an interdigitated electrode (IDE)-based capacitor and a quartz crystal microbalance (QCM) as transducing substrates. The unveiled sensors are able to simultaneously detect CO within the 400-5000 ppm range and relative humidity levels below 40 and above 60%, using two fluorinated metal-organic frameworks, namely, NbOFFIVE-1-Ni and AlFFIVE-1-Ni, fabricated as a thin film. Their subtle difference in a structure-adsorption relationship for HO and CO was analyzed to unveil the corresponding structure-sensing property relationships using both QCM- and IDE-based sensing modes.
CitationTchalala MR, Belmabkhout Y, Adil K, Chappanda KN, Cadiau A, et al. (2018) Concurrent Sensing of CO2 and H2O from Air Using Ultramicroporous Fluorinated Metal–Organic Frameworks: Effect of Transduction Mechanism on the Sensing Performance. ACS Applied Materials & Interfaces 11: 1706–1712. Available: http://dx.doi.org/10.1021/acsami.8b18327.
SponsorsThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST), under award numbers CCF/1/1972-25-01, CCF/1/1972-27-01, and OSR-2017-CPF-3325.
PublisherAmerican Chemical Society (ACS)