Amorphous Ag catalytic layer-SnO2 sensitive layer-graphite carbon nitride electron supply layer synergy-enhanced hydrogen gas sensor

Chemical Engineering Journal, Год журнала: 2024, Номер 495, С. 153676 - 153676

Опубликована: Июль 2, 2024

Язык: Английский

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Application of Polyoxometalates in Chemiresistive Gas Sensors: A Review

ACS Sensors, Год журнала: 2022, Номер 7(12), С. 3634 - 3643

Опубликована: Дек. 12, 2022

Polyoxometalates (POMs) are a series of molecular metal compounds based on W and Mo elements, exhibiting excellent physical chemical properties. POMs have been widely used in the fields photoelectric materials, catalytic coordination chemistry. In recent years, emerged field chemiresistive gas sensors. They can work as electron acceptors improve gas-sensing performance traditional sensing materials by means capturing electrons from semiconductors, separating produced light excitation or thermal delaying recombination holes. So far, highest sensitivity response POMs-based sensor is 231 to 1 ppm NO2 gas. this review, an overview investigated about how evolved First, some years introduced classified. After that, brief analyses for each kind provided. Then we compare reported sensors different parameters. Finally, future outlooks discussed basis current developments. This first comprehensive provide valuable information developing high-performance

Язык: Английский

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Heterogeneous stacking of reduced graphene oxide on ZnO nanowires for NO2 gas sensors with dramatically improved response and high sensitivity

Sensors and Actuators B Chemical, Год журнала: 2022, Номер 379, С. 133196 - 133196

Опубликована: Дек. 17, 2022

Язык: Английский

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Ultrahigh-response sensor based on hierarchical Pd-WO3 nanoflowers for rapid hydrogen detection

Sensors and Actuators B Chemical, Год журнала: 2023, Номер 387, С. 133790 - 133790

Опубликована: Апрель 6, 2023

Язык: Английский

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Synergistic effect of Pd and Fe2O3 nanoparticles embedded in porous NiO nanofibers on hydrogen gas detection: Fabrication, characterization, and sensing mechanism exploration

Sensors and Actuators B Chemical, Год журнала: 2023, Номер 388, С. 133836 - 133836

Опубликована: Апрель 15, 2023

Язык: Английский

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Design of ultrahigh-response gas sensor based on Pd-WO3/WS2 ternary nanocomposites for ultrafast hydrogen detection

Sensors and Actuators B Chemical, Год журнала: 2023, Номер 401, С. 134991 - 134991

Опубликована: Ноя. 20, 2023

Язык: Английский

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Review on Porosity Control in Nanostructured Semiconducting Metal Oxides and Its Influence on Chemiresistive Gas Sensing

ACS Applied Nano Materials, Год журнала: 2023, Номер 6(2), С. 1027 - 1049

Опубликована: Янв. 9, 2023

Nanostructured semiconducting metal oxides (SMOs) hold the potential for playing a critical role in gas-sensing applications due to their interconnected nanograins, large surface area, and shorter diffusion length. The rational introduction of ubiquitous porosity SMOs can enhance gas/air as well accessibility nanograins reactive sites. Although much work has been researched adopting highly porous nanostructured gas sensing, no comprehensive review on control yet presented. In this review, latest methods SMOs, structural properties, results are reported. Finally, perspective future directions provided further development research SMO-based nanomaterials.

Язык: Английский

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Review of noble metal and metal-oxide-semiconductor based chemiresistive hydrogen sensors

Sensors and Actuators A Physical, Год журнала: 2024, Номер 373, С. 115440 - 115440

Опубликована: Май 6, 2024

Язык: Английский

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Advances in 2D Materials Based Gas Sensors for Industrial Machine Olfactory Applications

ACS Sensors, Год журнала: 2024, Номер 9(6), С. 2728 - 2776

Опубликована: Июнь 3, 2024

The escalating development and improvement of gas sensing ability in industrial equipment, or "machine olfactory", propels the evolution sensors toward enhanced sensitivity, selectivity, stability, power efficiency, cost-effectiveness, longevity. Two-dimensional (2D) materials, distinguished by their atomic-thin profile, expansive specific surface area, remarkable mechanical strength, tunability, hold significant potential for addressing intricate challenges sensing. However, a comprehensive review 2D materials-based applications is absent. This delves into recent advances this field highlights machine olfaction. main content encompasses scenario characteristics, fundamental classification, enhancement methods, underlying mechanisms, diverse applications. Additionally, associated with transitioning material from laboratory to industrialization commercialization are addressed, future-looking viewpoints on next-generation intelligent sensory systems sector prospected.

Язык: Английский

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Ultra-effective room temperature gas discrimination based on monolithic Pd@MOF-derived porous nanocomposites: an exclusive scheme with photoexcitation

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(7), С. 3896 - 3909

Опубликована: Янв. 1, 2024

A high-selectivity reversed response to H 2 is discovered from the monolithic MOF-derived nanocomposites under UV photoexcitation at room-temperature, which provides a feasible reference for ultra-effective gas discrimination room temperature.

Язык: Английский

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