Flexible wearable/stickable ammonia colorimetric sensors with assistance of deep learning for ammonia leakage monitoring and early warning DOI
Yuling Mao, Dongzhi Zhang,

Hao Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163809 - 163809

Published: May 1, 2025

Language: Английский

Advanced surface engineering of TZO nanostructures via irradiation technique for enhanced nitric oxide (NO) gas sensitivity DOI
G. Yergaliuly,

Abylay Tangirbergen,

Almаgul Mentbayeva

et al.

Applied Surface Science Advances, Journal Year: 2025, Volume and Issue: 27, P. 100736 - 100736

Published: March 24, 2025

Language: Английский

Citations

1
Rapid and Sensitive Detection of 2-Ethylhexanol Vapor Utilizing Mesoporous Neodymium-Doped Indium Oxide for Real-Time Monitoring of Overheated Electrical Cables DOI
Xuewen Liao, Ping Li, Zizheng Wang

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Rapid and sensitive detection of 2-ethylhexanol vapor, a critical indicator overheating in electrical cables, is essential for the early warning potential fires. However, traditional chemiresistive gas sensors are inadequate real-time owing to its chemical stability. Herein, sensor based on mesoporous Nd-doped In2O3 designed rapid ppb-level vapor. The exhibits high response (22.8@1 ppm), excellent sensitivity (4.7 ppm–1), short time (29 s), low limit (760 ppb). After Nd doping, approximately 20 folds higher than that sensor. Furthermore, wireless sensing device has been developed enable monitoring cable overheating. outstanding performance can be attributed neodymium doping within framework, which enhances accessibility active sites interface materials, increases concentration surface-adsorbed oxygen at gas–solid interface, improves adsorption capacity 2-ethylhexanol. This work showcases an efficient semiconductor metal oxide capable rapidly sensitively detecting parts per billion levels induced by demonstrating significant

Language: Английский

Citations

0
Au-functionalized ZnFe2O4 spheres for acetone sensors with high response and low detection limit DOI
Wenlu Liu, Ziwen Yang, Hao Zhang

et al.

Vacuum, Journal Year: 2025, Volume and Issue: 238, P. 114315 - 114315

Published: April 9, 2025

Language: Английский

Citations

0
Metal–Organic Framework-Templated Growth of Cation-Substituted Metal Oxide Shell MO (M = Co, Ni, and Zn) on a CuO Core: An In-Depth Understanding of Methane Gas-Sensing Performance DOI

Shital J. Sahoo,

Banalata Maji,

Adyasha Das

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Language: Английский

Citations

0
Humidity‐Resistant CeO2/In2O3 Nanocomposite‐Based Chemiresistor for Selective Detection of Formaldehyde DOI
Ajeet Singh, Brij Mohan,

Vijay Pratap

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract Formaldehyde is a frequent indoor pollutant that poses risk to human and environmental health suspected be carcinogen. However, achieving high sensitivity selectivity for real‐time applications remains challenging. In this study, room‐temperature operated formaldehyde chemiresistor developed by cerium dioxide/indium oxide (CeO 2 /In O 3 ) nanocomposite exclusive detection. The synthesized using hydrothermal, forming CeO nanospheres grown on nanocubes. This unique structure enhances the sensing capabilities of , allowing it detect in 1–50 ppm range, 0.157 detection limit earned. sensor exhibits an impressive response 175.05 at 50 room temperature shows responsiveness various other substances, instance, methanol, ethanol, aniline, benzene, toluene, acetone, ammonia. Additionally, demonstrated moderate selectivity, sensitivity, stability, speedy response/recovery times, resilience humidity. work presents promising strategy formaldehyde.

Language: Английский

Citations

0
Resonant Coupling Effect by Metal Nanoparticles Modification: An Effective Strategy for High Sensitization of MOS-Based Chemiresistive Gas Sensors DOI
Yuqing Li, Can Liu,

X. P. Tang

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Metal nanoparticle surface modification is a simple and efficient method to realize highly sensitive detection for chemiresistive gas sensors. Although few theoretical explanations the complicated matching relationship in sensing system constructed from modified metal, semiconductor material, target have been proposed, there are no corresponding specific evaluation parameters based on metal sensitization mechanism, which crucial guidance of high-performance materials design. Herein, taking MnO2-based sensors as examples, improvement effect nanoparticles gas-sensing properties toward HCHO NH3 investigated. Combined with first-principle calculations density functional theory (DFT), novel resonant coupling model impurity energy levels, originating charge transfer between first proposed reveal mechanism that strength determines carrier concentration MOS. Coupling closely positive correlated response, provides an effective parameter semiquantitatively describe gas. Our work establishes clarifies correlation excavates new road further comprehend will provide guide design materials.

Language: Английский

Citations

0
Computational Modeling of SnO2 Quantum Dots Gas Sensors for CO Detection DOI

Shweta,

Sunil Jadav

Micro and Nanostructures, Journal Year: 2025, Volume and Issue: unknown, P. 208204 - 208204

Published: May 1, 2025

Language: Английский

Citations

0
Laboratory Cross-Sensitivity Evaluation of Low-Cost Electrochemical Formaldehyde Sensors DOI Creative Commons
Zheyuan Pei, Kerry E. Kelly

Sensors, Journal Year: 2025, Volume and Issue: 25(10), P. 3096 - 3096

Published: May 14, 2025

Formaldehyde is the most abundant carbonyl globally and biggest driver of cancer risk in United States among hazardous air pollutants. Ambient formaldehyde concentration measurements are generally sparse due to high measurement costs limited infrastructure. Recent studies have used low-cost quality sensors affordably improve spatial coverage provide real-time measurements. Our previous research evaluated laboratory performance a electrochemical sensor (Sensirion SFA30) over concentrations ranging from 0 76 ppb. The exhibited good linearity response, low limit detection, accuracy detecting formaldehyde. This study cross-sensitivity SFA30 Gravity (electrochemical sensors) 326 ppb evaluation system, with broadband cavity-enhanced absorption spectroscopy obtain reference We mixture five outdoor trace gases (CO, NO, NO2, O3, isobutylene) two indoor VOCs (methanol isopropyl alcohol). results suggest that may be useful for when levels well above background screening tools environments, if properly calibrated.

Language: Английский

Citations

0
Flexible wearable/stickable ammonia colorimetric sensors with assistance of deep learning for ammonia leakage monitoring and early warning DOI
Yuling Mao, Dongzhi Zhang,

Hao Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163809 - 163809

Published: May 1, 2025

Language: Английский

Citations

0