Development of an NO2 Gas Sensor Based on Laser-Induced Graphene Operating at Room Temperature

Sensors, Journal Year: 2024, Volume and Issue: 24(10), P. 3217 - 3217

Published: May 18, 2024

A novel, in situ, low-cost and facile method has been developed to fabricate flexible NO

Language: Английский

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Pd Nanoparticles Decorated Hollow TiO₂ Nanospheres for Highly Sensitive and Selective UV-Assisted Hydrogen Gas Sensors

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(14), P. 5608 - 5620

Published: July 12, 2024

Hydrogen (H2) gas has great potential as an energy carrier in the emerging renewable market, emitting zero CO2. However, its high explosive and flammability pose substantial risk across production, storage, transport, consumption; thus, rapid detection of leaks is essential. In this research, hollow TiO2 nanospheres (h-TiO2 NS) with a mean diameter ∼216 nm are fabricated via solvothermal method. The NS were then chemically decorated Pd nanoparticles ∼3.0 (Pd/h-TiO2 NS). Pd/h-TiO2 enables permeation by H2, maximizing active sites due to their specific surface area ∼80 m2/g mesoporous structure average pore size 5.6 nm. chemiresistive sensor shows promising results toward H2 at 80 °C under 9 V bias 365 UV light exceptional response (4.1 for 0.1% ∼88 1% H2), time 36 s 76 fast recovery (38 39 respectively). Even dark conditions, exhibits (2.3 ∼47 H2) 52 efficient (68 Additionally, wide range concentrations from 50 10,000 ppm can be detected both conditions. CH4 or CO2 does not affect response, NH3, NO2, acetone only marginally affects response. influence humidity very low. remained stable three months. confirm that sensing establish benchmark field.

Language: Английский

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Room-Temperature Wearable Chemiresistor Based on a Flexible Inorganic Photoactive Anatase–Rutile TiO₂/Yttria-Stabilized Zirconia Nanofiber Network

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

Published: March 10, 2025

Wearable gas sensors offer remarkable advantages in terms of portability and real-time monitoring, rendering them highly promising for various applications such as environmental detection, health early disease diagnosis. However, the most widely used oxide semiconductor encounter substantial challenges achieving mechanical flexibility room-temperature detection due to their inherent rigidity, brittleness, reliance on high operating temperatures. Herein, an all-inorganic wearable sensor is fabricated by depositing anatase/rutile TiO2 (TiO2-A/R) homojunction a flexible yttria-stabilized zirconia (YSZ) nanofiber substrate using atomic layer deposition technology. The combination YSZ ultrathin sensing (∼13 nm) endows with tiny linear strains (0.55%) when subjected radius curvature 25 μm. As result, inorganic YSZ/TiO2-A/R can be folded multiple times without fracturing maintain stable electrical connectivity during cyclic bending. Furthermore, utilization photoactive homojunctions allows activated UV light operated at room temperature. efficient separation efficiency photogenerated carriers, which stems from interfacial electric field homojunctions, significantly enhances sensor's response, leading low limit 0.15 ppm acetone. In addition, was anchored mask successfully utilized simulated breathing diabetics; response signals demonstrate its potential noninvasive diabetes This study provides valuable reference advancement sensors, offering insights into

Language: Английский

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Recent advances in semiconductor gas sensors for thermal runaway early-warning monitoring of lithium-ion batteries

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216624 - 216624

Published: March 20, 2025

Language: Английский

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Photoelectric dual mode sensing system based on one-step fabricated heterojunction artificial synapses device

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 165, P. 101021 - 101021

Published: May 26, 2025

Language: Английский

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Ag modified Metal Oxides (MOx) as Sensing Electrodes for CeO2 based Mixed Potential Hydrogen Sensors

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 427, P. 137172 - 137172

Published: Dec. 24, 2024

Language: Английский

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