Acetone is a well-known volatile organic compound that is widely used in different industrial
and domestic areas. However, it can have dangerous effects on human life and health …

Since the first suggestion, during the 1950s, that high-surface-area metal oxides could be
used as conductometric gas sensors enormous efforts have been made to enhance both the …

As a typical metal oxide semiconductor, ZnO has been investigated deeply for the
application of gas sensing materials. In this study, an ultrahigh sensitive and selective NO 2 …

Because of the combined merits of rich physicochemical properties, abundance, low toxicity,
etc., hematite (α-Fe2O3), one of the most chemically stable compounds based on the …

This paper develops a novel ultrasonic spray-assisted solvothermal (USS) method to
synthesize wrapped ZnO/reduced graphene oxide (rGO) nanocomposites with a Schottky …

The alarming growth in air pollution has drawn more attention to gas sensing technologies.
As a result, the fabrication of highly sensitive and selective gas sensors has become a hot …

Recently, the phase composition of a certain metal oxide has been regarded as an important
factor that can significantly influence the gas sensing performance. For a better comparison …

In this study, we report on the construction of multiple heterojunctions by functionalization of
WO 3–SnO 2 n–n junction nanotubes (NTs) with nanoscale Pd catalysts for highly sensitive …

This review paper introduces various types of gas sensors operating at high temperatures
and their mechanisms, which can provide solutions to gas sensor selection for harsh …

The major merits of organic-based sensors include their low cost, room-temperature
operation, and small size. However, their sensitivity and selectivity are concerning …