V2O5 nanofibers: Potential contestant for high performance xylene sensor

Vijayakumar, Y.; Mani, Ganesh Kumar; Ponnusamy, Dhivya; Shankar, P.; Kulandaisamy, Arockia Jayalatha; Tsuchiya, Kazuyoshi; Rayappan, John Bosco Balaguru; Reddy, M.V. Ramana

doi:10.1016/j.jallcom.2017.10.056

Cited by 32 publications

(13 citation statements)

References 44 publications

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“…The enhancement of sensitivity is of great importance in obtaining excellent gas sensors. Researchers have devoted great efforts to fabricate high performance gas sensors [62,63,64,65,66,67,68,69,70,71]. The sensitivity of semiconductor metal oxide gas sensors can be improved by adjusting the microstructure, defects, catalyst, heterojunction and humidity.…”

Section: Factors Affecting the Sensitivity Of Semiconductor Metalmentioning

confidence: 99%

Semiconductor Metal Oxides as Chemoresistive Sensors for Detecting Volatile Organic Compounds

Lin

et al. 2019

Sensors

192

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: Factors Affecting the Sensitivity Of Semiconductor Metalmentioning

confidence: 99%

Semiconductor Metal Oxides as Chemoresistive Sensors for Detecting Volatile Organic Compounds

Lin

et al. 2019

Sensors

192

106

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“…These features enable V 2 O 5 to be utilized for numerous applications including gas sensing. Nanosized V 2 O 5 with different structures have been synthesized for the electrochemical sensing of ethanol [ 31 ], ammonia [ 32 ] and xylene [ 33 ]. However, the application of nanosized V 2 O 5 in the design of CTL-based sensors has seldom been reported.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Cataluminescence Sensor Based on Nanosized V2O5 for 2-Butanone Detection

2020

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The development of high-performance sensors is of great significance for the control of the volatile organic compounds (VOCs) pollution and their potential hazard. In this paper, high crystalline V2O5 nanoparticles were successfully synthesized by a simple hydrothermal method. The structure and morphology of the prepared nanoparticles were characterized by TEM and XRD, and the cataluminescence (CTL) sensing performance was also investigated. Experiments found that the as-prepared V2O5 not only shows sensitive CTL response and good selectivity to 2-butanone, but also exhibits rapid response and recovery speed. The limit of detection was found to be 0.2 mg/m3 (0.07 ppm) at a signal to noise ratio of 3. In addition, the linear range exceeds two orders of magnitude, which points to the promising application of the sensor in monitoring of 2-butanone over a wide concentration range. The mechanism of the sensor exhibiting selectivity to different gas molecules were probed by quantum chemistry calculation. Results showed that the highest partial charge distribution, lowest HOMO-LUMO energy gap and largest dipole moment of 2-butanone among the tested gases result in it having the most sensitive response amongst other VOCs.

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“…The CV curves illustrated in Figure 6 a show characteristic cathodic and anodic peaks. Increasing the scan rate resulted in a positive potential shift of the cathodic peak and a negative potential shift of the anodic peak [ 30 ]. Interestingly, two cathodic peaks were observed with one considerably below −100 mV and the other slightly above 600 mV.…”

Section: Resultsmentioning

confidence: 99%

“…These properties are crucial for a wide range of medical and industrial applications such as energy storage devices, electrochromic devices, solar cells, photochromic devices, and microbolometers, etc. [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Potentiometric Performance of a Highly Flexible-Shaped Trifunctional Sensor Based on ZnO/V2O5 Microrods

Appiagyei

Han

2021

Sensors

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A trifunctional flexible sensor was fabricated on a polyethylene terephthalate (PET) fiber surface. Synthesized ZnO and ZnO/V2O5 composite were coated on ZnO seed layer sputtered PET fiber. X-ray diffraction (XRD) and photoelectron spectroscopy (XPS) techniques confirmed the exact formation of ZnO and ZnO/V2O5. The fabricated ZnO/V2O5 on ZnO seeds base temperature sensor recorded better electrical properties and reversibility with a maximum temperature coefficient resistance (TCR) of 0.0111 °C−1. A calibration curve (R = 0.9941) within glucose concentration of (10 µM–10 mM) was obtained at +0.8 V vs. Ag/AgCl from current-voltage curves which assisted in calculating glucose sensitivity, limit of detection (LOD), limit of quantification (LOQ). The electrode achieved an outstanding performance of sensitivity (72.06 µAmM−1cm−2), LOD (174 µM), and LOQ (582 µM) at optimum deposition time. Interference from oxidation of interfering biomolecules such as ascorbic acid, dopamine, and uric acid were negligible compared to glucose. Finally, the fabricated electrode was employed as a pH sensor and displayed a pH sensitivity of 42.26 mV/pH (R = 0.9922). This fabricated ZnO/V2O5 electrode exhibited high sensitivity and a stable combined temperature, glucose, and pH sensor which is promising for development of multifunctional sensors in next generation wearables.

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V2O5 nanofibers: Potential contestant for high performance xylene sensor

Cited by 32 publications

References 44 publications

Semiconductor Metal Oxides as Chemoresistive Sensors for Detecting Volatile Organic Compounds

Semiconductor Metal Oxides as Chemoresistive Sensors for Detecting Volatile Organic Compounds

High-Performance Cataluminescence Sensor Based on Nanosized V2O5 for 2-Butanone Detection

Potentiometric Performance of a Highly Flexible-Shaped Trifunctional Sensor Based on ZnO/V2O5 Microrods

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