Rapid and Sensitive Detection of 2-Ethylhexanol Vapor Utilizing Mesoporous Neodymium-Doped Indium Oxide for Real-Time Monitoring of Overheated Electrical Cables

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

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Ag decorated ultra-thin WO3 nanosheet for high performance H2S sensor at the ppt level

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106487 - 106487

Published: April 1, 2025

Language: Английский

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A Generative Artificial Intelligence Model for Efficient Gas Sensitivity Prediction in Materials without Parameters from First Principle Calculation

Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: unknown, P. 116636 - 116636

Published: April 1, 2025

Language: Английский

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Antimony Doping in SnO₂ Nanoparticles for Sensitive NO₂ Sensors

ACS Sensors, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Developing cost-effective NO2 sensors with ppb-level limit of detection (LOD) is crucial for effectively monitoring this widespread toxic gas. SnO2, a promising candidate, suffers from limitations including poor selectivity, high operating temperature, and sensitivity to moisture. To address these challenges, we synthesized high-performance Sb-doped SnO2 via hydrothermal method. All products exhibit rutile tetragonal crystalline structures consist fine nanoparticles, primarily in the several-nanometer range. It found that dopant activation lattice dependent on both temperature doping concentration minimum resistivity achieved at optimal annealing temperature. For sensor fabrication, an condition 300 °C ambient air 2 h was chosen. demonstrated prominent selectivity toward NO2. The response follows volcano-shaped curve, 1.0 2.0 atom % exhibiting highest responses room (∼25 °C). This peak shifts 0.1 75 °C. achieving progressively decreases increasing Sb doping, while moisture resistance also improves. SnO2:0.1%Sb demonstrates most impressive overall performance, higher stability against variation. boasts ultrahigh 2.65 × 104, rapid response/recovery times 153 s/11 s 1 ppm °C, LOD down 20 ppb. Density functional theory calculations suggest moderate level leads stronger adsorption, explaining observed performance concentrations.

Language: Английский

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Optimization of SnO2-based MEMS sensor array for expeditious and precise categorization of meat types and freshness status

Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: unknown, P. 116680 - 116680

Published: May 1, 2025

Language: Английский

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High-sensitivity formaldehyde gas sensor based on Ce-doped urchin-like SnO2 nanowires derived from calcination of Sn-MOFs

Frontiers of Materials Science, Journal Year: 2024, Volume and Issue: 18(1)

Published: March 1, 2024

Language: Английский

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High Selectivity MEMS C₂H₂ Sensor for Transformer Fault Characteristic Gas Detection**

Analysis & Sensing, Journal Year: 2024, Volume and Issue: 4(6)

Published: June 27, 2024

Abstract Acetylene (C 2 H ), as an important characteristic gas in transformer fault diagnosis, should be accurately detected and effectively distinguished from other dissolved gases (H , CH 4 C 6 CO, CO which is crucial to determine whether the occurs type, but also faces challenges now. The rational design employment of rare earth noble metals are expected address this issue. In work, SnO ‐3 at% Sm O 3 ‐1 PdO based MEMS sensor was prepared achieve high performance detection has a response value 56 50 ppm response/recovery time s/136 s, lower limit 1 ppm, power consumption 15.5 mW, weak cross sensitivity gases. Lewis acids bases theory used explain reason why benefit element improve selectivity . formation oxygen vacancies hetero junctions increased material. This study proved feasibility potential additives enable advanced gas‐sensitive materials for highly selective detection.

Language: Английский

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Visual detection of aldehyde gases using a silver-loaded paper-based colorimetric sensor array

Talanta, Journal Year: 2024, Volume and Issue: 280, P. 126716 - 126716

Published: Aug. 19, 2024

Language: Английский

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Construction of heterojunction based on Nd2S3 and tin dioxide for rapid detection of ethanol

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: unknown, P. 136829 - 136829

Published: Oct. 1, 2024

Language: Английский

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Effect of heterogenous dopant and high temperature pulse excitation on ozone sensing behavior of In2O3 nanostructures and an image recognition method coupled to ozone sensing array

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133379 - 133379

Published: Dec. 27, 2023

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