High acetone sensing properties of In<sub>2</sub>O<sub>3</sub>–NiO one-dimensional heterogeneous nanofibers based on electrospinning

Fan, Xiangxiang; Xu, Yajuan; He, Wuming

doi:10.1039/d1ra00114k

Cited by 11 publications

(4 citation statements)

References 32 publications

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“…According to the ratios, the selectivity of the sensor depends on the sensitivity of different gases, and the sensitivity of different gases is related to the reaction intensity of the gas on the surface of the sensing material. Due to the reaction intensity being influenced by the amount of adsorbed gas on the surface and the reaction energy, the material composition and working temperature are key factors to determine the selectivity, and the sensor exhibits the highest reaction intensity at the optimal operating temperature [13]. Compared with Co 3 O 4 , the acetone reaction intensity on the surface of CZ-2 is enhanced more than other gases, resulting in improved selectivity.…”

Section: Gas-sensing Propertiesmentioning

confidence: 99%

“…Therefore, enhanced sensing properties can be obtained by constructing a heterojunction. The structures of heterogeneous materials include a hybrid heterostructure, a decorated heterostructure, and a multilayer heterostructure [13][14][15][16]. Among them, the decorated heterostructure is beneficial for gas sensing due to its good synergistic effect between the core and shell components and larger heterointerface [17,18].…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Enhanced Acetone-Sensing Properties of ZIF-8-Derived Co3O4@ZnO Microspheres

et al. 2023

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In this work, ZIF-8-derived Co3O4@ZnO microspheres were prepared by a liquid-phase concentration-controlled nucleation strategy. The results of the material characterization showed that Co3O4@ZnO microspheres were obtained, and the surface structure could be controlled with the concentration of the ligand. Compared with pure Co3O4 microspheres, the operating temperature of optimized Co3O4@ZnO microspheres increased by 90 °C after the gas-sensing test. The response to 50 ppm acetone of Co3O4@ZnO microspheres was 4.5 times higher than that of pure Co3O4, and the detection limit reached 0.5 ppm. Meanwhile, Co3O4@ZnO microspheres showed a shorter response-recovery time and better selectivity. The enhanced-sensing mechanism of the ZIF-8-derived Co3O4@ZnO microspheres was also analyzed.

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Section: Gas-sensing Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Enhanced Acetone-Sensing Properties of ZIF-8-Derived Co3O4@ZnO Microspheres

et al. 2023

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“…and/or p-type (CuO, NiO, Co 3 O 4 etc.) metal oxides that show different sensing properties depending on the way they are formed. − Various studies revealed that the existence of such heterojunctions facilitates gas sensing phenomenon by electron/hole movement through the interface modulated potential barrier. When two different metal oxides are in physical contact, the Fermi level of the hybrid material must align.…”

Section: Oxide Heterostructure For Gas Sensingmentioning

confidence: 99%

Nanoscale Heterostructured Materials Based on Metal Oxides for a Chemiresistive Gas Sensor

Mondal

Gogoi

2022

ACS Appl. Electron. Mater.

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Nanomaterials with exceptional physical and chemical properties are the key to the success of the next generation of gas sensor technology, which is expected to have special features like being lightweight and flexible for wearability, mechanical robustness, reliable operation with wide environmental changes, and self-powered, in addition to the general sensor characteristics. The design of the chemiresistor with nanostructured hybrid material has indicated a great potential to meet these current demands, drawing significant attention to the technological developments in the past decades. The nanotechnology driven strategic design of the hybrid nanostructures is predicted to be pivotal for the development of nanomaterials bearing distinct physical and chemical properties and catalytic power, enabling them to produce overall improvements in sensor efficiency. In this review, a comprehensive review on the recent progress of hybrid gas sensors fabricated by coupling various metal oxides and 2D materials like transition metal dichalcogenides, graphene, and its derivatives are presented. The limitations of the current materials, key challenges, as well as the futuristic strategy for material design delivering fascinating properties and modern growth techniques are highlighted. A special emphasis has been given to hybrid sensors made with transition metal dichalcogenides, which are considered to be an emerging material and very few works have reported on its hybrid with metal oxides. The relevance of reliable detection of hydrogen is felt due to the dramatic rise in the use of hydrogen in industrial, commercial, and household purposes. As the whole world is moving toward a hydrogen economy, reliable, accurate, and robust hydrogen sensors will be a crucial component of the technological systems. In view of this, the current status and recent progress on hydrogen sensors based on heterostructured nanomaterials are also presented to the reader.

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“…However, inhaling acetone is harmful, especially to the nervous system, and further propagates narcosis, headache, and fatigue. − In addition, acetone is one of the byproducts of mammalian metabolism, in which the breath acetone levels escalate to more than 1800 ppm for patients with diabetes mellitus and a few hundred ppm during high ketogenic diets. − Therefore, it is important to sense acetone concentration accurately from both industrial and healthcare perspectives to raise an alarm about the exposure levels. Essentially, the active component in the acetone sensor is made of nanostructures of ZnO, , SnO 2, TiO 2, , WO 3, In 2 O 3, and Fe 2 O 3 − and the composite of graphene and polyaniline (PANI) . Typically, these materials show a change in electrical resistance in the presence of a reducing gas such as acetone, realized as ideal for electrical/electrochemical sensor development.…”

Section: Introductionmentioning

confidence: 99%

Flexible Paper-Based Room-Temperature Acetone Sensors with Ultrafast Regeneration

Davis

Narayanan

Ajeev

et al. 2023

ACS Appl. Mater. Interfaces

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Paper-based lightweight, degradable, low-cost, and eco-friendly substrates are extensively used in wearable biosensor applications, albeit to a lesser extent in sensing acetone and other gas-phase analytes. Generally, rigid substrates with heaters have been employed to develop acetone sensors due to the high operating/recovery temperature (typically above 200 °C), limiting the use of papers as substrates in such sensing applications. In this work, we proposed fabricating the paper-based, room-temperature-operatable acetone sensor using ZnO-polyaniline-based acetone-sensing inks by a facile fabrication method. The fabricated paper-based electrodes showed good electrical conductivity (80 S/m) and mechanical stability (∼1000 bending cycles). The acetone sensors showed a sensitivity of 0.02/100 ppm and 0.6/10 μL with an ultrafast response (4 s) and recovery time (15 s) at room temperature. The sensors delivered a broad sensitivity over a physiological range of 260 to >1000 ppm with R 2 > 0.98 under atmospheric conditions. Further, the role of the surface, interfacial, microstructure, electrical, and electromechanical properties of the paper-based sensor devices has been correlated with the sensitivity and room-temperature recovery observed in our system. These versatile, green, flexible electronic devices would be ideal for low-cost, highly regenerative, room-/low-temperature-operable wearable sensor applications.

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High acetone sensing properties of In₂O₃–NiO one-dimensional heterogeneous nanofibers based on electrospinning

Abstract: The In2O3–NiO nanofiber with p–n heterojunctions exhibited an enhanced acetone sensing performance, and the detection limit reached 10 ppb.

Cited by 11 publications

References 32 publications

Preparation and Enhanced Acetone-Sensing Properties of ZIF-8-Derived Co3O4@ZnO Microspheres

Preparation and Enhanced Acetone-Sensing Properties of ZIF-8-Derived Co3O4@ZnO Microspheres

Nanoscale Heterostructured Materials Based on Metal Oxides for a Chemiresistive Gas Sensor

Flexible Paper-Based Room-Temperature Acetone Sensors with Ultrafast Regeneration

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High acetone sensing properties of In2O3–NiO one-dimensional heterogeneous nanofibers based on electrospinning

Abstract: The In2O3–NiO nanofiber with p–n heterojunctions exhibited an enhanced acetone sensing performance, and the detection limit reached 10 ppb.

Cited by 11 publications

References 32 publications

Preparation and Enhanced Acetone-Sensing Properties of ZIF-8-Derived Co3O4@ZnO Microspheres

Preparation and Enhanced Acetone-Sensing Properties of ZIF-8-Derived Co3O4@ZnO Microspheres

Nanoscale Heterostructured Materials Based on Metal Oxides for a Chemiresistive Gas Sensor

Flexible Paper-Based Room-Temperature Acetone Sensors with Ultrafast Regeneration

Contact Info

Product

Resources

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High acetone sensing properties of In₂O₃–NiO one-dimensional heterogeneous nanofibers based on electrospinning