Enhanced sensitivity towards hydrogen by a TiN interlayer in Pd-decorated SnO₂ nanowires

Abstract

In this study, we designed a new structure based on Pd-decorated TiN-coated SnO2 nanowires (NWs), for selective detection of H2 gas. Initially, SnO2 NWs were prepared using a simple vapor-liquid-solid...

Role of Er doping on isoamyl alcohol sensing performance of LaFeO3 microspheres and its prospects in wheat mildew detection

“…Subsequently, different kinds of oxygen anions (O 2 − and O − ) were generated from eqn ( 5)-( 7). [44][45][46] The electrons on the LaFeO 3 sensing coating are captured by pre-adsorbed oxygen, which contributes to the deepening of the EDL, leading to the decline of baseline resistance (Fig. 5a and c).…”

Unlocking superior NO2 sensitivity and selectivity: the role of sulfur abstraction in indium sulfide (InS) nanosheet-based sensors

“…In the contemporary era, characterized by rapid industrial development and the intensifying consequences of climate change, there is an urgent need for effective air quality monitoring. As a response to this exigency, chemoresistive gas sensors, primarily based on metal-oxide semiconductors, 1–6 have been widely embraced for their compactness, user-friendly operational mechanisms, and their proficiency in detecting variations in electrical properties of metal oxides when gas molecules adsorb on their surfaces. 1,7–11 Chemoresistive sensors operate on the principle that the electrical properties of metal oxides undergo measurable changes when gas molecules are adsorbed onto their surfaces.…”

“…As a response to this exigency, chemoresistive gas sensors, primarily based on metal-oxide semiconductors, 1–6 have been widely embraced for their compactness, user-friendly operational mechanisms, and their proficiency in detecting variations in electrical properties of metal oxides when gas molecules adsorb on their surfaces. 1,7–11 Chemoresistive sensors operate on the principle that the electrical properties of metal oxides undergo measurable changes when gas molecules are adsorbed onto their surfaces. However, the path to optimized gas detection is fraught with several challenges.…”