CsPbBr₃ Quantum Dot Modified In₂O₃ Nanofibers for Effective Detection of ppb-Level HCHO at Room Temperature under UV Illumination

ACS Sensors, Год журнала: 2024, Номер 9(11), С. 6040 - 6050

Опубликована: Ноя. 13, 2024

The design of high-performance and low-power formaldehyde (HCHO) gas sensors is great interest to researchers for environmental monitoring human health. Herein, In

Язык: Английский

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Persistently boosted TEA sensing performance of In2O3 hollow spheres by sequentially modified with Bi2O3 and Pt nanoparticles

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 422, С. 136628 - 136628

Опубликована: Сен. 11, 2024

Язык: Английский

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Anchoring Ni atomic clusters on yolk-shell In2O3 microspheres for highly sensitive, ultra-rapid responding/recovering ppb-level NO2 detections

Chemical Engineering Journal, Год журнала: 2024, Номер 499, С. 156531 - 156531

Опубликована: Окт. 9, 2024

Язык: Английский

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Ultrasensitive acetone sensors based on bimetallic@In2O3 yolk-shell structures: From structural design to mechanism exploration

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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The updated gas sensing performance of In2O3 porous nanospheres for ppb level formaldehyde by doping with Mo

Vacuum, Год журнала: 2025, Номер unknown, С. 114248 - 114248

Опубликована: Март 1, 2025

Язык: Английский

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Assembly of n-p In2O3-Co3O4 heterostructures and their surface and structural analyses towards trace level detection of acetone

Applied Surface Science, Год журнала: 2024, Номер 671, С. 160714 - 160714

Опубликована: Июль 14, 2024

The accurate identification and quantification of volatile organic compounds is imperative in addressing environmental concerns, medical diagnostics, industrial safety. Thus, the current study focuses on fabrication heterostructures based In2O3–p-type metal oxides (i.e., In2O3-CuO, In2O3-Co3O4, In2O3-Mn3O4, In2O3-NiO) utilizing a hydrothermal approach. Various techniques were utilized to characterize detail. Among tested sensors towards various analytes, In2O3-Co3O4-based sensor disclosed better response 2.3 ppm acetone (C3H6O) at 100 °C. also demonstrated outstanding sensitivity (2.38 ppm−1), an extremely low limit detection (0.142 ppb), humidity resistance, fast response-recovery time. improved C3H6O gas sensing performance could be associated with enhanced interfacial synergy In2O3-Co3O4 heterostructure creation oxygen vacancies, reduced band gap, higher specific surface area revealing additional active sites enable adequate molecules adsorption. work further discusses theoretical procedure that was evaluated using crystal field theory determine strength cobalt ions identify which electronic state mostly exploited form possible heterostructure. These results provide viable pathway regulate characteristics concentration for practical health assessment.

Язык: Английский

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Nanosheet-assembled hierarchical CeO2/Co3O4 heterostructures derived from bimetallic MOFs for enhanced CO detection

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 423, С. 136754 - 136754

Опубликована: Окт. 9, 2024

Язык: Английский

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Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds

Chemosensors, Год журнала: 2024, Номер 12(12), С. 244 - 244

Опубликована: Ноя. 22, 2024

The efficient detection of volatile organic compounds (VOCs) is critically important in the domains environmental protection, healthcare, and industrial safety. development metal oxide semiconductor (MOS) heterojunction gas-sensing materials considered one most effective strategies to enhance sensor performance. This review summarizes discusses types heterojunctions their working principles, enhancement strategies, preparation methodologies, applications acetone ethanol detection. To address constraints pertaining low sensitivity, sluggish response/recovery times, elevated operating temperatures that are inherent VOC sensors, several improvement methods proposed, including doping with metals like Ag Pd, incorporating additives such as MXene polyoxometalates, optimizing morphologies through a fine design, self-doping via oxygen vacancies. Furthermore, this work provides insights into challenges faced by MOSs heterojunction-based gas sensors outlines future research directions field. will contribute foundational theories overcome existing bottlenecks MOS technology while promoting its large-scale application disease screening or agricultural food quality assessments.

Язык: Английский

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Chemiresistive detection of H2 at near room temperature by porous In2O3 nanotubes co-sensitized with La-dopant and Pd-modifier

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 426, С. 137110 - 137110

Опубликована: Дек. 10, 2024

Язык: Английский

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Interface Defects and Carrier Regulation in MOF-Derived Co₃O₄/In₂O₃ Composite Materials for Enhanced Selective Detection of HCHO

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Апрель 24, 2024

Gas sensors for real-time monitoring of low HCHO concentrations have promising applications in the field health protection and air treatment, this work reports a novel resistive gas sensor with high sensitivity selectivity to HCHO. The MOF-derived hollow In2O3 was mixed ZIF-67(Co) calcined twice obtain Co3O4/In2O3 (hereafter collectively termed MZO-6) composite enriched oxygen vacancies, tests such as XPS EPR proved that strong interfacial electronic coupling increased vacancies. gas-sensitive test results show MZO-6 abundant vacancies has higher response value (11,003) 10 ppm achieves fast response/recovery time (11/181 s) at lower operating temperature (140 °C). material significantly enhances reduces interference common pollutant gases ethanol, acetone, xylene. There is no significant fluctuation resistance values 30-day long-term stability test, good stability. synergistic effect heterostructure altered formaldehyde adsorption intermediate pathway reduced reaction activation energy, enhancing responsiveness material.

Язык: Английский

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