The release of toxic and harmful gases seriously endangers human health and social and
environmental safety. Sensitive determination of these gases is urgently needed to meet the …

High-precision gas sensors operated at room temperature are attractive for various real-time
gas monitoring applications, with advantages including low energy consumption, cost …

In this work, hierarchical flower-like Ni-doped Co 3 O 4 was synthesized via a facile one-step
coprecipitation method. In the synthesis process, a series of solvent-dependent experiments …

The most extensively explored gas sensors are metal oxide semiconductor (MOS) materials
owing to their high selectivity, stability, cost-effectiveness, and simple synthesis techniques …

In recent times, wearable electronics, real-time sensing devices and point-of-care device
applications have seen a surge in demand. This demand inherently calls for a more …

The application of NO 2 sensor based on metal oxide semiconductor is limited due to high
operating temperature and poor selectivity. In this work, a low-temperature and high …

Room temperature gas sensors have been widely explored in gas sensor technology for
real-time applications. However, humidity has found to affect the room temperature sensing …

Highly sensitive semiconductor gas sensors hold great potential for applications in trace gas
detection. Reliable detection of ppb-level NO2 is crucial for environmental monitoring, which …

WO 3 mesoporous hollow nanospheres doped with Fe synthesized by a facile method have
mesoporous hollow nanospherical like morphology, small grain size (10 nm), high …

Abstract Development of ppb-level H 2 S sensors based on semiconductor metal oxides has
been highly desirable due to its harmful to the human health even at a concentration as low …