Wireless Gas Sensor Based on the Mesoporous ZnO–SnO₂ Heterostructure Enables Ultrasensitive and Rapid Detection of 3-Methylbutyraldehyde

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(5), P. 2585 - 2595

Published: April 20, 2024

Achieving ultrasensitive and rapid detection of 3-methylbutyraldehyde is crucial for monitoring chemical intermediate leakage in pharmaceutical industries as well diagnosing ventilator-associated pneumonia by exhaled gas. However, developing a sensitive method detecting poses challenges. Herein, wireless chemiresistive gas sensor based on mesoporous ZnO–SnO2 heterostructure fabricated to enable the first time. The exhibits uniform spherical shape (∼79 nm diameter), high specific surface area (54.8 m2 g–1), small crystal size (∼4 nm), large pore (6.7 nm). demonstrates response (18.98@20 ppm), short response/recovery times (13/13 s), low limit (0.48 ppm) toward 3-methylbutyraldehyde. Furthermore, real-time system developed utilizing microelectromechanical systems sensors. modification amorphous ZnO SnO2 wall can effectively increase chemisorbed oxygen content thickness electron depletion layer at gas–solid interface, which facilitates interface redox reaction enhances sensing performance. This work presents an initial example semiconductor metal oxide sensors efficient that holds great potential ensuring safety during production disease diagnosis.

Language: Английский

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Oxygen vacancies induced by lanthanum-doped indium oxide nanofibers for promoted temperature-dependent triethylamine and formaldehyde sensing

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133148 - 133148

Published: Dec. 1, 2023

Language: Английский

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Cobalt-doping-induced energy level and oxygen vacancy dual modulation in tin dioxide for efficient triethylamine detection

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 415, P. 135998 - 135998

Published: May 17, 2024

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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Synergistic sensitization effects of single-atom gold and cerium dopants on mesoporous SnO₂ nanospheres for enhanced volatile sulfur compound sensing

Materials Horizons, Journal Year: 2024, Volume and Issue: 11(13), P. 3038 - 3047

Published: Jan. 1, 2024

A concept of synergistic sensitization effects involving single-atom Au and Ce dopants on mesoporous SnO 2 nanospheres is proposed for ultrasensitive real-time monitoring ppb-level volatile sulfur compounds.

Language: Английский

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Investigation on Oxygen Vacancy Regulation Mechanism of ZnO Gas Sensors under Temperature Modulation Mode to Distinguish Alcohol Homologue Gases

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 423, P. 136747 - 136747

Published: Oct. 6, 2024

Language: Английский

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Confining isolated Pt atoms into the porous SnO2 for efficient gas sensing

Ceramics International, Journal Year: 2024, Volume and Issue: 50(13), P. 22220 - 22231

Published: Jan. 5, 2024

Language: Английский

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Synergy of W doping and oxygen vacancy engineering on d-band center modulation for enhanced gas sensing performance

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(8), P. 4770 - 4781

Published: Jan. 1, 2024

W doping and vacancy engineering allowed the control of d-band center material improved gas sensing performance.

Language: Английский

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Electrospun nylon/Ag@ZIF-8 nanofibers for robust SERS detection of gaseous molecules assisted by deep learning

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113007 - 113007

Published: Feb. 1, 2025

Language: Английский

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The multiple sensitization effects in La-doped In2O3 porous nanotubes enabling highly sensitive and selective detection of formaldehyde at low temperature

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179741 - 179741

Published: March 1, 2025

Language: Английский

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