Structural and sensing properties of ethanol gas using Pd-doped SnO2 thick film gas sensor

Roles of structure and electron mobilization in enhanced ethanol sensing by Al doped SnO2nanoparticles

“…2). Sensing responses were calculated using the standard formula, 38,39 response (%) = (R air À R gas )/R air where R air is the sensor resistance in air/N 2 and R gas is the sensor resistance in the presence of the target gas. The I-V characteristics of the sensors were measured under similar conditions.…”

Enhanced NO2‐Sensing Properties of Cu‐Loaded SnO2 Nanoparticles Synthesized via Precipitation and Impregnation Methods

“…Additionally, SnO 2 materials are most practically used in commercial applications owing to their low cost and good stability. However, SnO 2 ‐based gas sensor still exhibits limited selectivity because of diverse responses to various gases such as hydrogen (H 2 ), [ 6 ] toluene (C 6 H 5 CH 3 ), [ 7 ] propanol (C 3 H 8 O), [ 8 ] hydrogen sulfide (H 2 S), [ 9 ] and NO 2 , [ 10,11 ] which restrict their uses in practical applications. Therefore, it is important to further improve the NO 2 ‐sensing performance particularly selectivity of SnO 2 ‐based materials at particularly low operating temperatures.…”

“…It also takes part in atmospheric reactions producing ground-level ozone that is a principal component of smog, which can cause a variety of health problems. It is, therefore, necessary to develop high-performance and cost-effective NO 2 gas sensors SnO 2 -based gas sensor still exhibits limited selectivity because of diverse responses to various gases such as hydrogen (H 2 ), [6] toluene (C 6 H 5 CH 3 ), [7] propanol (C 3 H 8 O), [8] hydrogen sulfide (H 2 S), [9] and NO 2 , [10,11] which restrict their uses in practical applications. Therefore, it is important to further improve the NO 2 -sensing performance particularly selectivity of SnO 2 -based materials at particularly low operating temperatures.…”

Coadsorption of CO and CH4 on the Au doped SnO2 (110) surface: a first principles investigation

“…Although many efforts have been made to improve the gas sensor of SnO 2 in experimental [39][40][41][42][46][47][48][49], little literatures reported the mechanism of SnO 2 sensor gas sensitivity enhancement. In this work, we devote ourself to research the gas sensing characteristics of metal atom doped SnO 2 and develop a gas sensor material with good adsorption capacity for CO and CH 4 gas molecule.…”