期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 51, 页码 15879-15883出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201608780
关键词
interdigitated electrodes; H2S; metal-organic frameworks (MOFs); rare-earth metals; sensors
资金
- King Abdullah University of Science and Technology
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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