Polyoxometalates/metal–organic frameworks-derived ZnO/ZnWO4 nanoparticles for highly sensitive and selective ppb-level NO2 detection

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 499, P. 156604 - 156604

Published: Oct. 10, 2024

Language: Английский

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Triboelectric Nanogenerator for Self‐Powered Gas Sensing

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Abstract With the continuous acceleration of industrialization, gas sensors are evolving to become portable, wearable and environmentally friendly. However, traditional rely on external power supply, which severely limits their applications in various industries. As an innovative adaptable generation technology, triboelectric nanogenerators (TENGs) can be integrated with leverage benefits both technologies for efficient friendly self‐powered sensing. This paper delves into basic principles current research frontiers TENG‐based sensor, focusing particularly environmental safety monitoring, healthcare, as well emerging fields such food assurance smart agriculture. It emphasizes significant advantages sensor systems promoting sustainability, achieving sensing at room temperature, driving technological innovations devices. also objectively analyzes technical challenges, including issues related performance enhancement, theoretical refinement, application expansion, provides targeted strategies future directions aimed paving way progress widespread field sensors.

Language: Английский

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Enhanced response for triethylamine detection by NiCo2O4-In2O3 composites gas sensor

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161378 - 161378

Published: March 1, 2025

Language: Английский

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Highly breathable and sensitive iontronic wearable sensor based on porous ionic electrolyte and microstructure for human movement sensing

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153525 - 153525

Published: June 27, 2024

Language: Английский

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High-Performance Gas Sensor based on Ag@SnO2-Co3O4 Hollow Nanocomposite for Fast and Highly Selective H2S Detection

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137239 - 137239

Published: Jan. 1, 2025

Language: Английский

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Improved Selectivity of CeMnOx/Pt@SnO2 Laminated MOS Sensor for Hydrogen Cyanide Under Temperature Dynamic Modulation

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(3), P. 155 - 155

Published: Jan. 21, 2025

Poor selectivity is one of the main bottlenecks restricting development metal oxide semiconductor (MOS) sensors. In this paper, using hydrogen cyanide (HCN) as target gas, CeMnOx catalytic layer material and Pt@SnO2 gas-sensitive material, we have proposed a scheme to improve layer/gas-sensitive layer-laminated MOS sensor under dynamic temperature modulation. We tested HCN 12 kinds battlefield environment simulation gases, results showed that CeMnOx/Pt@SnO2 sensor, condition modulation (a constant 400 °C for variable room layer; heating cooling rates were 200 °C/s, highest was maintained 2 s, lowest s), distinct characteristic peaks appeared on G-T curves resistance response only. The quantification performed by peak heights, height 5 mg/m3 obtained up 0.104, while heights other gases at same concentration 0.034. significantly higher than which verified high HCN. Meanwhile, also good sensitivity, response/recovery time, stability anti-interference above This work provides an important reference improvement sensors

Language: Английский

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Humidity-tolerant ammonia gas sensors based on PrOx/In2O3/WO3 heterostructure films

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161482 - 161482

Published: March 1, 2025

Language: Английский

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Construction of semiconductor nanocomposites for room-temperature gas sensors

Nanoscale, Journal Year: 2024, Volume and Issue: 16(27), P. 12883 - 12908

Published: Jan. 1, 2024

The development of room temperature gas sensors will be achieved by combining nanomaterials with different dimensions, along modifying the surface properties in terms both chemical composition and electrical attributes these materials.

Language: Английский

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High Response H2S Chemiresistive Gas Sensor Based on Multidimensional CuO/CeO2: The Application for Real-time Portable Alarm Device

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 424, P. 136884 - 136884

Published: Nov. 7, 2024

Language: Английский

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Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperature

Sensors and Actuators Reports, Journal Year: 2024, Volume and Issue: 8, P. 100216 - 100216

Published: June 28, 2024

The presence of ammonia in exhaled human breath serves as a crucial biomarker for renal diseases. This paper presents highly sensitive sensor operable at room temperature, utilizing Ti/Zr dual metal MOF its core component, synthesized through straightforward solvothermal reaction approach. Ti/Zr-MOF demonstrates excellent responsiveness to gas, with detection limit remarkable sensitivity, reaching low 2 ppm. Notably, the exhibits practical insensitivity similar concentrations other major interfering volatiles, including acetone, ethanol, and saturated moisture. Electron Paramagnetic Resonance (EPR) analysis confirms oxygen vacancies (Ov) materials, exhibiting stronger Ov signals potential enhanced NH3 adsorption capture. In-situ FTIR spectrum reveals ammonia-induced -OH (H2O) moiety formation, indicating between adsorbed O2− species ammonia, resulting decreased electrical resistance Ti/Zr-MOF.

Language: Английский

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