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- Title
Gas Sensing Properties of Mg-Incorporated Metal–Organic Frameworks.
- Authors
Lee, Jae-Hyoung; Nguyen, Thanh-Binh; Nguyen, Duy-Khoi; Kim, Jae-Hun; Kim, Jin-Young; Phan, Bach Thang; Kim, Sang Sub
- Abstract
The gas sensing properties of two novel series of Mg-incorporated metal–organic frameworks (MOFs), termed Mg-MOFs-I and -II, were assessed. The synthesized iso-reticular type Mg-MOFs exhibited good crystallinity, high thermal stability, needle-shape morphology and high surface area (up to 2900 m2·g−1), which are promising for gas sensing applications. Gas-sensing studies of gas sensors fabricated from Mg-MOFs-II revealed better sensing performance, in terms of the sensor dynamics and sensor response, at an optimal operating temperature of 200 °C. The MOF gas sensor with a larger pore size and volume showed shorter response and recovery times, demonstrating the importance of the pore size and volume on the kinetic properties of MOF-based gas sensors. The gas-sensing results obtained in this study highlight the potential of Mg-MOFs gas sensors for the practical monitoring of toxic gases in a range of environments.
- Subjects
METAL-organic frameworks; GASES; THERMAL stability; SURFACE area
- Publication
Sensors (14248220), 2019, Vol 19, Issue 15, p3323
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s19153323