One-pot synthesis of In doped NiO nanofibers and their gas sensing properties

Feng, Changhao; Kou, Xueying; Chen, Bin; Qian, Guobing; Sun, Yangyang; Lu, Geyu

doi:10.1016/j.snb.2017.06.115

Cited by 86 publications

(21 citation statements)

References 43 publications

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“…Based on the different sensing mechanisms, gas sensors are divided into several main types, including resistive, catalytic, optical and electrochemical [17]. Among them, resistive gas sensors based on semiconductor metal oxides have been considered attractive candidates for detecting hazardous VOCs due to the fast response and recovery time, ease of use, low-cost, high sensitivity and good portability [18,19,20,21,22,23,24].…”

Section: Introductionmentioning

confidence: 99%

Semiconductor Metal Oxides as Chemoresistive Sensors for Detecting Volatile Organic Compounds

Lin

et al. 2019

Sensors

194

106

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Volatile organic compounds (VOCs), which originate from painting, oil refining and vehicle exhaust emissions, are hazardous gases that have significant effects on air quality and human health. The detection of VOCs is of special importance to environmental safety. Among the various detection methods, chemoresistive semiconductor metal oxide gas sensors are considered to be the most promising technique due to their easy production, low cost and good portability. Sensitivity is an important parameter of gas sensors and is greatly affected by the microstructure, defects, catalyst, heterojunction and humidity. By adjusting the aforementioned factors, the sensitivity of gas sensors can be improved further. In this review, attention will be focused on how to improve the sensitivity of chemoresistive gas sensors towards certain common VOCs with respect to the five factors mentioned above.

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Section: Introductionmentioning

confidence: 99%

Semiconductor Metal Oxides as Chemoresistive Sensors for Detecting Volatile Organic Compounds

Lin

et al. 2019

Sensors

194

106

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“…However, the synthesis of nanomaterials with large surface area and multi-active adsorption sites are still a significant but challenging task. Moreover, to the best of our knowledge, SnO 2 , ZnO, TiO 2 /SnO 2 and In/NiO nanofiber sensitive materials and their gas-sensing performances have already been studied [25,26,27,28]. While the synthesis of porous NiO/SnO 2 nanofibers with carbonization process in various heating rates for H 2 gas sensors was much less widely reported.…”

Section: Introductionmentioning

confidence: 99%

Superior Hydrogen Sensing Property of Porous NiO/SnO2 Nanofibers Synthesized via Carbonization

Liu

Wang

et al. 2019

Nanomaterials

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In this paper, the porous NiO/SnO2 nanofibers were synthesized via the electrospinning method along with the carbonization process. The characterization results show that the pristine SnO2-based nanofibers can form porous structure with different grain size by carbonization. The hydrogen gas-sensing investigations indicate that the NiO/SnO2 sensor exhibits more prominent sensing properties than those of pure SnO2 sensor devices. Such enhanced performance is mainly attributed to the porous nanostructure, which can provide large active adsorption sites for surface reaction. Moreover, the existence of p-n heterojunctions between NiO and SnO2 also plays a key role in enhancing gas-sensing performances. Finally, the H2 sensing mechanism based on the NiO/SnO2 nanocomposite was proposed for developing high-performance gas sensor devices.

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“…Moreover, both response/recovery time were less than a min, thus become a prominent material in ethylene glycol sensor. Similar to the above report, Feng and co-workers synthesized the In-doped NiO nanofibers through electrospinning method and employed in the detection of methanol [ 176 ]. At 300 °C, the sensor response of In-doped NiO nanofibers reached 10.9 for 200 ppm methanol (response/recovery time = 273 s/26 s), which was five times higher than that of pure NiO nanofibers.…”

Section: Alcoholic Vapor Detection By Miscellaneous Nanostructuresmentioning

confidence: 99%

Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing

Shellaiah

Sun

2021

Sensors

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Environmental pollution related to volatile organic compounds (VOCs) has become a global issue which attracts intensive work towards their controlling and monitoring. To this direction various regulations and research towards VOCs detection have been laid down and conducted by many countries. Distinct devices are proposed to monitor the VOCs pollution. Among them, chemiresistor devices comprised of inorganic-semiconducting materials with diverse nanostructures are most attractive because they are cost-effective and eco-friendly. These diverse nanostructured materials-based devices are usually made up of nanoparticles, nanowires/rods, nanocrystals, nanotubes, nanocages, nanocubes, nanocomposites, etc. They can be employed in monitoring the VOCs present in the reliable sources. This review outlines the device-based VOC detection using diverse semiconducting-nanostructured materials and covers more than 340 references that have been published since 2016.

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One-pot synthesis of In doped NiO nanofibers and their gas sensing properties

Cited by 86 publications

References 43 publications

Semiconductor Metal Oxides as Chemoresistive Sensors for Detecting Volatile Organic Compounds

Semiconductor Metal Oxides as Chemoresistive Sensors for Detecting Volatile Organic Compounds

Superior Hydrogen Sensing Property of Porous NiO/SnO2 Nanofibers Synthesized via Carbonization

Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing

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