Journal of Nanoelectronics and Optoelectronics, Год журнала: 2024, Номер 19(11), С. 1156 - 1164

Опубликована: Ноя. 1, 2024

As the demand for selective and sensitive gas sensors continues to escalate, development of novel materials with enhanced performance becomes increasingly imperative. The present investigation delves into fabrication implementation two-dimensional cobalt oxide (Co 3 O 4 ) nanostructures as highly proficient discerning identification hydrogen sulfide (H 2 S) within intricate environmental circumstances. distinct configuration Co , characterized by its substantial surface-to-volume ratio abundant accessible active sites, markedly augments adsorption reaction dynamics, resulting in exceptional sensitivity selectivity toward H S over other potentially confounding gases. Extensive characterization methodologies, encompassing X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM), corroborate successful synthesis well-defined nanosheets. exhibited optimal detection at 250 °C, demonstrating significant (Response = 214.45) fast response recovery times (16.85 s 46.93 s, respectively). Its was further validated through concentration-dependent studies, which showed high accuracy even low concentrations (0.3–50 ppm). sensor also displayed excellent gases, minimal interference from humidity, maintained stability during cyclic exposure long-term operation 30 days. These findings highlight this material a promising due superior metrics. incorporation these nanosheets apparatus offers propitious strategy real-world applications, such surveillance industrial safety systems.

Язык: Английский