Fast response of sprayed vanadium pentoxide (V2O5) nanorods towards nitrogen dioxide (NO2) gas detection

Mane, A.A.; Suryawanshi, Mahesh P.; Moholkar, A.V.

doi:10.1016/j.apsusc.2017.01.220

Cited by 74 publications

(23 citation statements)

References 40 publications

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“…Some examples of NO 2 sensor with vanadium pentoxide sensing material are given in Table 2 [47,62,63,64,65]. Among gas sensing oxides presented in Table 2, two materials distinguish oneself: composite porous Si/nanorod V 2 O 5 [51] and thin film V 2 O 5 (this work) sensors.…”

Section: Resultsmentioning

confidence: 99%

V2O5 Thin Films as Nitrogen Dioxide Sensors †

Schneider

Maziarz

2018

Sensors

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Vanadium pentoxide thin films were deposited onto insulating support by means of rf reactive sputtering from a metallic vanadium target. Argon-oxygen gas mixtures of different compositions controlled by the flow rates were used for sputtering. X-ray diffraction at glancing incidence (GIXD) and Scanning Electronic Microscopy (SEM) were used for structural and phase characterization. Thickness of the films was determined by the profilometry. It has been confirmed by GIXD that the deposited films are composed of V2O5 phase. The gas sensing properties of V2O5 thin films were investigated at temperatures from range 410–617 K upon NO2 gas of 4–20 ppm. The investigated material exhibited good response and reversibility towards nitrogen dioxide. The effect of metal-insulator transition (MIT) on sensor performance has been observed and discussed for the first time. It was found that a considerable increase of the sensor sensitivity occured above 545 K, which is related to postulated metal-insulator transition.

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Section: Resultsmentioning

confidence: 99%

V2O5 Thin Films as Nitrogen Dioxide Sensors †

Schneider

Maziarz

2018

Sensors

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“…The V 2 O 5 NRs deposited with 30 mM solution exhibited the highest gas response of 24.2% to 100 ppm NO 2 gas at 200 • C with response and recovery times of 13 s and 140 s, respectively. The improved sensing response of the optimized gas sensor was attributed to high crystallinity of sensing layer and the formation of a porous structure in which diffusion of gas molecules was facilitated into the depth parts of gas sensor [56].…”

Section: (Chmentioning

confidence: 99%

A Review of Nanostructured Resistive-Based Vanadium Oxide Gas Sensors

et al. 2020

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Vanadium pentoxide (V2O5) is a transition metal oxide with features such as high availability, good catalytic activity, unique electrical properties and high conductivity which are appropriate for gas sensing applications. In this review, we discuss different gas sensing aspects of V2O5 in pristine, doped, decorated and composite forms. Depending on its synthesis procedure, morphology, sensing temperature and surface conditions, the V2O5-based gas sensors show different responses to target gases. Herein, we have discussed the behavior of V2O5-based gas sensors to different gases and associated sensing mechanisms. This review paper can be a useful reference for the researchers who works in the field of gas sensors.

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“…Under this context, many efforts were focused on developing a miniaturized highly sensitive and reversible NO 2 gas sensor with a low limit of detection (LOD) operating at room temperature [9]. Various high sensitivity NO 2 gas sensors based on metal oxide semiconductors like SnO 2 [10], WO 3 [11], ZnO [12,13], In 2 O 3 [14], V 2 O 5 [15], and MoO 3 [16] have been developed. However, their limits of detection are mostly at the ppm-level, and the operating temperature is high (100 • C-300 • C).…”

Section: Introductionmentioning

confidence: 99%