Institution of Metal–Organic Frameworks as a Highly Sensitive and Selective Layer In-Field Integrated Soil-Moisture Capacitive Sensor

• DOI: 10.1021/acsami.2c20141
• Publication Date: 2023-01-20T21:34:36Z
• Authors: Norah Alsadun; Sandeep Surya; Kamlesh Patle; Vinay S. Palaparthy; Osama Shekhah; Khaled N. Salama; Mohamed Eddaoudi
• Keywords: 01 natural sciences; 6. Clean water; 0104 chemical sciences

The ongoing global industrialization along with the notable world population growth is projected to challenge environment as well pose greater pressure on water and food needs. Foreseeably, an improved irrigation management system essential quest for refined chemical sensors soil-moisture monitoring of tremendous importance. Nevertheless, persisting design construct stable materials requisite sensitivity, selectivity, high performance. Here, we report introduction porous metal-organic frameworks (MOFs), receptor layer, in capacitive efficiently sense moisture two types soil. Namely, our study unveiled that Cr-soc-MOF-1 offers best sensitivity (≈24,000 pF) among other tested MOFs any given range content, outperforming several well-known oxide materials. corresponding increase sensitivities at 500 Hz are ≈450, ≈200, ≈30% Cr-soc-MOF-1, Al-ABTC-soc-MOF, Zr-fum-fcu-MOF, respectively. Markedly, its capacity, manifests excellent ≈450% clayey soil, analogous response time was s. noted unique sensing properties unveils great potential application.