Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 51, Pages 15879-15883Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201608780
Keywords
interdigitated electrodes; H2S; metal-organic frameworks (MOFs); rare-earth metals; sensors
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Funding
- King Abdullah University of Science and Technology
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Herein we report the fabrication of an advanced sensor for the detection of hydrogen sulfide (H2S) at room temperature, using thin films of rare-earth metal (RE)-based metal-organic framework (MOF) with underlying fcu topology. This unique MOF-based sensor is made via the insitu growth of fumarate-based fcu-MOF (fum-fcu-MOF) thin film on a capacitive interdigitated electrode. The sensor showed a remarkable detection sensitivity for H2S at concentrations down to 100ppb, with the lower detection limit around 5ppb. The fum-fcu-MOF sensor exhibits a highly desirable detection selectivity towards H2S vs. CH4, NO2, H-2, and C7H8 as well as an outstanding H2S sensing stability as compared to other reported MOFs.
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