Enhanced acetone gas-sensing characteristics of Pd-NiO nanorods/SnO nanowires sensors.

Acetone is a well-known volatile organic compound that is widely used in different industrial and domestic areas, but it can cause dangerous effects on human health. Thus, the fabrication of highly sensitive and selective sensors for recognition of acetone is incredibly important. Here, we prepared the SnO/Pd-NiO (SPN) nanowires-based gas sensor for the detection of acetone, in which, the amount of Pd nanoparticles were varied to enhance the performance of the devices.

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.

Room Temperature Ammonia Gas Sensor Based on p-Type-like VO Nanosheets towards Food Spoilage Monitoring.

Gas sensors play an important role in many areas of human life, including the monitoring of production processes, occupational safety, food quality assessment, and air pollution monitoring. Therefore, the need for gas sensors to monitor hazardous gases, such as ammonia, at low operating temperatures has become increasingly important in many fields. Sensitivity, selectivity, low cost, and ease of production are crucial characteristics for creating a capillary network of sensors for the protection of the environment and human health.

Enhanced NH and H gas sensing with HS gas interference using multilayer SnO/Pt/WO nanofilms.

The selective detection and classification of NH and HS gases with HS gas interference based on conventional SnO thin film sensors is still the main problem. In this work, three layers of SnO/Pt/WO nanofilms with different WO thicknesses (50, 80, 140, and 260 nm) were fabricated using the sputtering technique. The WO top layer were used as a gas filter to further improve the selectivity of sensors.

An effective HS sensor based on SnO nanowires decorated with NiO nanoparticles by electron beam evaporation.

The highly toxic hydrogen sulphide (HS) present in air can cause negative effects on human health. Thus, monitoring of this gas is vital in gas leak alarms and security. Efforts have been devoted to the fabrication and enhancement of the HS-sensing performance of gas sensors.

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.

Tensile, Thermal, Dielectric and Morphological Properties of Polyoxymethylene/Silica Nanocomposites.

This paper presents the tensile, thermal, dielectric and morphological properties of composites based on polyoxymethylene (POM) and nanosilica (NS) prepared by melt mixing method at 190 °C. Based on the torque readings, the processing of POM/NS composites were found to be easier in comparison to only POM. The FT-IR spectra analysis of the POM/NS nanocomposites showed the presence of peak at approximately 910 cm-1, attributed to the Si-O and C-O groups in NS and POM on the POM/NS nanocomposite.

CHOH and NO sensing properties of ZnO nanostructures: correlation between crystal size, defect level and sensing performance.

ZnO nanostructures can be synthesized using different techniques for gas sensor applications, but different synthesis methods produce different morphologies, specific surface areas, crystal sizes, and physical properties, which consequently influence the gas-sensing properties of materials. Many parameters such as morphology, specific surface areas, crystal sizes, and defect level can influence the gas-sensing properties of ZnO nanostructures. However, it is not clear which parameter dominates the gas-sensing performance.