The adsorption of formaldehyde (HCHO) gas on different one-dimensional ZnO
nanostructures is examined using density functional theory calculations. The effects of …

Detection of pollutant gases, such as formaldehyde (HCHO), in our homes and surrounding
environment is of high importance for our health and safety. The effect of surface defects and …

Experimental works have shown that doping ZnO nanosheets by the Al atom meaningfully
increases their sensitivity toward HCHO gas. Here, we applied density functional theory …

Following an experimental work, we employed density functionals B3LYP, B97D, CAM-
B3LYP, BMK, and M06-HF to study the impact of Ca-doping on a ZnO nanotube (ZnONT) …

The sensitivity of a metal oxide gas sensor is strongly dependent on the nature of the crystal
surface exposed to the gas species. In this study, two types of zinc oxide (ZnO) …

Experimental works have shown that decoration of noble metals on the metal oxides
significantly increases their sensitivity toward different gases. In this work, density functional …

Abstract In this study, ZnO/TiO 2 nanosheets were synthesized using a hydrothermal method
followed by annealing. The resulting hierarchical ZnO–TiO 2 heterostructures exhibited …

The O2 preadsorption properties prior to the application for nanomaterials have rarely
attracted attention; however, they greatly affect the surface nature between gas and …

Absorbed oxygen plays a key role in gas sensing process of ZnO nanomaterials. In this
work, the transformation of absorbed oxygen on ZnO (101̅0) and its effects on gas sensing …

Abstract Based on Cu-modified ZnO (CZO), a highly sensitive gas sensor for formaldehyde
(HCHO) detection at room temperature was prepared by the sol–gel method, and the …