Abstract
This article presents a humidity sensor based on a micro-porous metal-organic framework (MOF) KAUST-7. A series of sensing-test experiments were performed and the results demonstrated that the sensor has promising sensing performance with fast response-recovery speed (6/12 s), high linearity (R2 = 0.992) and good stability in a wide relative humidity range. Most notably, the micro-porous structure and fluorine clusters play a supporting role in the ad-desorption process of water molecules. The humidity sensing mechanism was analyzed by complex impedance spectrum and theory calculation. These results indicated that micro-porous KAUST-7 is a potential candidate for constructing a humidity sensor with high performance.
| Original language | English |
|---|---|
| Journal | IEEE Sensors Journal |
| DOIs | |
| State | Accepted/In press - 2025 |
Keywords
- fluorine clusters
- humidity sensor
- KAUST-7
- micro-porous MOF