Semiconductor metal oxides (SMOxs) are widely used in gas sensors due to their excellent
sensing properties, abundance, and ease of manufacture. The best examples of these …

Toxic gases, such as NOx, SOx, H2S and other S-containing gases, cause numerous
harmful effects on human health even at very low gas concentrations. Reliable detection of …

In 1991, Iijima reported on the formation of carbon nanotubes (1) using a simple arc
discharge reaction that led to an arrangement of the material in some micrometer long tubes …

One of the most favorable environmental applications of nanotechnology has been in air
pollution remediation in which different nanomaterials are used as nanoadsorbents …

Human exposure to volatile organic compounds and NO 2 can lead to health problems,
therefore strategies to mitigate against the risks are required. Abatement and sensing are …

SnO 2 nanoparticles were uniformly grown on the surfaces of ZnO nanowires by a simple
hydrothermal process to form one-dimensional ZnO-SnO 2 hetero-structured nanowires. The …

Synthesis—particularly by electrochemical anodization-, growth mechanism and chemical
sensing properties of pure, doped and mixed titania tubular arrays are reviewed. The first …

Titanium dioxide nanotubes (TNTs) have attracted a considerable amount of attention over
the past several decades. TNTs in the form of high-quality nanotube bundled structures may …

The development of highly selective, stable, and sensitive materials for the various gas
emissions is a challenging task concerning the numerous applications: environmental …

Nowadays, the electronic nose (e-nose) has gained a huge amount of attention due to its
ability to detect and differentiate mixtures of various gases and odors using a limited number …