Highly sensitive and selective SO2 MOF sensor: the integration of MFM-300 MOF as a sensitive layer on a capacitive interdigitated electrode

Valeriya Chernikova, Omar Yassine, Osama Shekhah, Mohamed Eddaoudi, Khaled N. Salama

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

We report on the fabrication of an advanced chemical capacitive sensor for the detection of sulfur dioxide (SO2) at room temperature. The sensing layer based on an indium metal–organic framework (MOF), namely MFM-300, is coated solvothermally on a functionalized capacitive interdigitated electrode. The fabricated sensor exhibits significant detection sensitivity to SO2 at concentrations down to 75 ppb, with the lower detection limit estimated to be around 5 ppb. The MFM-300 MOF sensor demonstrates highly desirable detection selectivity towards SO2 vs. CH4, CO2, NO2 and H2, as well as an outstanding SO2 sensing stability.
Original languageEnglish (US)
Pages (from-to)5550-5554
Number of pages5
JournalJournal of Materials Chemistry A
Volume6
Issue number14
DOIs
StatePublished - 2018

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