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- W4233761284 abstract "Gas sensing technologies for smart cities require miniaturization, cost-effectiveness, low power consumption, and outstanding sensitivity and selectivity. On-chip, tailorable capacitive sensors integrated with metal–organic framework (MOF) films are presented, in which abundant coordinatively unsaturated metal sites are available for gas detection. The in situ growth of homogeneous Mg-MOF-74 films is realized with an appropriate metal-to-ligand ratio. The resultant sensors exhibit selective detection for benzene vapor and carbon dioxide (CO2) at room temperature. Postsynthetic modification of Mg-MOF-74 films with ethylenediamine decreases sensitivity toward benzene but increases selectivity to CO2. The reduced porosity and blocked open metal sites caused by amine coordination account for a deterioration in the sensing performance for benzene (by ca. 60 %). The enhanced sensitivity for CO2 (by ca. 25 %) stems from a tailored amine–CO2 interaction. This study demonstrates the feasibility of tuning gas sensing properties by adjusting MOF–analyte interactions, thereby offering new perspectives for the development of MOF-based sensors." @default.
- W4233761284 created "2022-05-12" @default.
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- W4233761284 date "2019-07-30" @default.
- W4233761284 modified "2023-10-17" @default.
- W4233761284 title "On‐Chip Tailorability of Capacitive Gas Sensors Integrated with Metal–Organic Framework Films" @default.
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- W4233761284 doi "https://doi.org/10.1002/ange.201906222" @default.
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