Layered Double Hydroxide-Based Gas Sensors for VOC Detection at Room Temperature.

ABSTRACT: Miniaturized low-cost sensors for volatile organic compounds (VOCs) have the potentiality to become a fundamental tool for indoor and outdoor air quality monitoring, to significantly improve everyday life. Layered double hydroxides (LDHs) belong to the class of anionic clays and are largely employed for NO _x detection, while few results are reported on VOCs. In this work, a novel LDH coprecipitation method is proposed. For the first time, a study comparing four LDHs (ZnAl-Cl, ZnFe-Cl, ZnAl-NO₃, and MgAl-NO₃) is carried out to investigate the sensing performances. As explored through several microscopy and spectroscopy analyses, LDHs show a morphology characterized by a large surface area and a three-dimensional hierarchical flowerlike architecture wi

SUBMITTER: Vigna L 

PROVIDER: S-EPMC8358945 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature