Fabrication of robust and cost-efficient Hoffmann-type MOF sensors for room temperature ammonia detection.

ABSTRACT: The development of fast-response sensors for detecting NH₃ at room temperature remains a formidable challenge. Here, to address this challenge, two highly robust Hoffmann-type metal-organic frameworks are rationally applied as the NH₃ sensing materials which possess ultra-high static adsorption capacity for NH₃, only lower than the current benchmark material. The adsorption mechanism is in-depth unveiled by dynamic adsorption and simulation studies. The assembled interdigital electrode device exhibits low detection limit (25 ppb) and short response time (5 s) at room temperature, which set a record among all electrical signal sensors. Moreover, the sensor exhibits excellent selectivity towards NH₃ in the presence of 13 other potential interfering

SUBMITTER: Wang S 

PROVIDER: S-EPMC10636145 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature