A sigh-performance hydrogen gas sensor based on Ag/Pd nanoparticle-functionalized ZnO nanoplates.

As a source of clean energy, hydrogen (H) is a promising alternative to fossil fuels in reducing the carbon footprint. However, due to the highly explosive nature of H, developing a high-performance sensor for real-time detection of H gas at low concentration is essential. Here, we demonstrated the H gas sensing performance of Ag/Pd nanoparticle-functionalized ZnO nanoplates.

Ultra-low detection limit chemoresistive NO gas sensor using single transferred MoS flake: an advanced nanofabrication.

In this work, a method of fabricating a NO nano-sensor working at room temperature with a low detectable concentration limit is proposed. A 2D-MoS flake is isolated by transferring a single MoS flake to SiO/Si substrate, followed by applying an advanced e-beam lithography (EBL) to form a metal contact with Au/Cr electrodes. The resulting chemoresistive nano-sensor using a single MoS flake was applied to detect a very low concentration of NO at the part-per-billion (ppb) level.

Dip-coating decoration of AgO nanoparticles on SnO nanowires for high-performance HS gas sensors.

SnO nanowires (NWs) are used in gas sensors, but their response to highly toxic gas HS is low. Thus, their performance toward the effective detection of low-level HS in air should be improved for environmental-pollution control and monitoring. Herein, AgO nanoparticle decorated SnO NWs were prepared by a simple on-chip growth and subsequent dip-coating method.

Controlled synthesis of ultrathin MoS nanoflowers for highly enhanced NO sensing at room temperature.

Fabrication of a high-performance room-temperature (RT) gas sensor is important for the future integration of sensors into smart, portable and Internet-of-Things (IoT)-based devices. Herein, we developed a NO gas sensor based on ultrathin MoS nanoflowers with high sensitivity at RT. The MoS flower-like nanostructures were synthesised a simple hydrothermal method with different growth times of 24, 36, 48, and 60 h.

A comparative study on the electrochemical properties of nanoporous nickel oxide nanowires and nanosheets prepared by a hydrothermal method.

Metal oxide nanostructures have been extensively used in electrochemical devices due to their advantages, including high active surface area and chemical stability. However, the electrochemical properties of metal oxides are strongly dependent on their structural characteristics. We performed a comparative study on the electrochemical performance of nanoporous nickel oxide (NiO) nanosheets and nanowires.