Ni-Doped SnO Microplates for Carbon Monoxide Gas Detection.

ABSTRACT: Undoped and Ni-doped SnO were synthesized using a microwave-assisted hydrothermal method to analyze the influence of Ni-doped SnO nanostructures on CO detection. The scanning electron microscopy (SEM) analysis revealed a predominantly tetragonal SnO phase, with a minor proportion of the tetragonal SnO₂ phase. X-ray photoelectron spectroscopy (XPS) confirmed the SnO phase without the NiO _x phase on the microplate surfaces. The images showed micrometric plates with SnO (001) surfaces. The presence of Ni led to an increase in the carrier concentrations, resulting in enhanced conductivity. Additionally, density functional theory (DFT) calculations indicated that Ni doping in the outermost layer significantly enhanced CO affinity via carbon coordination, while oxyge

SUBMITTER: Giulietti G 

PROVIDER: S-EPMC12547786 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature