Highly sensitive gas sensors with remarkably low detection limits are attractive for diverse
practical application fields including real-time environmental monitoring, exhaled breath …

Advances in gas sensing devices are urgently needed to reduce air pollution and control
human health. In this regard, the progress in the development of low-dimensional …

The design of hierarchical zinc oxide (ZnO) microstructures modified with silver (Ag)
nanoparticles have emerged as an effective approach for improving the hydrogen gas …

Detecting the acetone in human exhaled breath sensitively and selectively plays an
important role in the noninvasive diagnosis of diabetes. However, obtaining a reliable …

The chemiresistor-type sensors based on Ag-ZnO nanostructures have shown excellent
sensing properties to NO 2 under visible light irradiation, however, they cannot escape from …

N-butanol gas is a common volatile organic compound (VOC) that can pose a threat to
human health and pollute the atmospheric environment. However, the n-butanol gas …

Light-activated gas sensors have been investigated for their superior potential to replace
current thermally activated gas sensors, which have several drawbacks for the Internet of …

In this study, 2D porous ZnFe 2 O 4 nanosheets (ZnFe 2 O 4 NSs) were fabricated for use as
sensing materials using a 3-stage process involving soaking, freeze-drying, and calcination …

Abstract Pristine and Ag-added (1.5, 3.5 and 5.5 wt%) ZnO nanoparticles (NPs) were
synthesized by a Pechini sol-gel route for evaluation of their gas sensing properties. The …

Nitrogen dioxide (NO 2) is one of the toxic gases produced by chemical industries, power
plants, and vehicles. In this work, we demonstrate an inexpensive sensing platform for NO 2 …