Recent progress in chemiresistive gas sensors with 1D nanostructured sensing materials: Insights into the structure-morphology-performance relationship

Exploring the Contribution of Intelligent Nanomaterials in Gas Sensing

“…Various industries, including semiconductors, fabrication, power generation, chemical and petrochemical, transportation (such as ships, aircraft, and vehicles), food and beverage processing, medical equipment, and more, rely on gas sensors for tasks related to process control and gas analysis. [1][2][3] Gas sensors are a type of chemical sensor and hold significant importance in these applications. A gas sensor typically comprises two essential components: (i) a sensing material, often referred to as the active layer, responsible for converting chemical information into an electrical signal, and (ii) a transducer that separates the response to the target gas from other variables or gases.…”

“…In recent years, there has been a growing interest in gas‐sensing technology within both academic and industrial circles. Various industries, including semiconductors, fabrication, power generation, chemical and petrochemical, transportation (such as ships, aircraft, and vehicles), food and beverage processing, medical equipment, and more, rely on gas sensors for tasks related to process control and gas analysis [1–3] . Gas sensors are a type of chemical sensor and hold significant importance in these applications.…”

Preparation and NH3 gas-sensing properties of Ag/β-AgVO3 nanorods

“…9,16–23 Recently, one-dimensional (1D) nanostructured MOSs, including nanowires (NWs), nanotubes (NTs), nanobelts (NBs), and nanorods (NRs), have been widely investigated as NH 3 gas-sensing materials due to their unique characteristics, such as numerous unsaturated chemical bonds, high length-to-diameter ratios, and rapid charge carrier transport. 21,24–27 Furthermore, the integration of noble metal nanoparticles such as Au, Pd, Pt, and Ag onto MOS surfaces has been explored extensively to significantly enhance NH 3 gas-sensing sensitivity. 28–33…”

Enhanced acetone gas-sensing characteristics of Pd–NiO nanorods/SnO2 nanowires sensors

“…Recently, nanostructured materials like nanowires, nanorods, and nanosheets were reported to have a high gas sensor response due to their ultrahigh surface-to-volume ratio. 21 In addition, the presence of noble metal or metal oxide on the sensing material surface would improve its sensing properties due to the synergetic effect of catalyst and heterojunction. 14,22 Noble metals lower activation energies, enhancing catalytic activity, generating active surface sites for increased oxygen adsorption, and reducing the operating temperature of the sensor.…”