Synthesis and characterization of V2O5/PANI thin films for application in amperometric ammonia gas sensors

Santos, Matheus; Hamdan, O.H.C.; Valverde, Sarah Araújo; Guerra, Elídia Maria; Bianchi, Rodrigo Fernando

doi:10.1016/j.orgel.2018.11.013

Cited by 45 publications

(16 citation statements)

References 27 publications

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“…Consequently, V 2 O 5 is found in several studies being a sensing material for several gas, such as, ammonia, ethanol, pH-sensor, EGFET pH-sensor, phenylhydrazine, NO 2 , H 2 O 2 and among others. In all cases, V 2 O 5 demonstrated to be highly sensitivity in several temperature and under both dark and illumination conditions [18,[39][40][41][42][43][44][45][46][47]. Similar to the sensor, a biossensor turn an analytical response into a measurable chemical signal and detects only a certain biological product as a target analyte.…”

Section: Properties and Applicationsmentioning

confidence: 99%

Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications

Cestarolli¹,

Guerra²

2021

Transition Metal Compounds - Synthesis, Properties, and Application

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The first synthesis of pentoxide vanadium (V2O5) as gel completed 135 years in 2020. Since its first synthesis, the V2O5 has attracted attention over the years in different areas in science and technology. There are several possibilities to obtain V2O5 resulting in different structures. Among these methods, it is possible to mention the sol–gel, hydrothermal/solvothermal synthesis, electrospinning, chemical vapor deposition (CVD), physical vapor deposition (PVD), template-based methods, reverse micelle techniques, Pechini method and electrochemical deposition that can be considered as the great asset for its varied structures and properties. Progress towards obtaining of different structures of V2O5, and phases have been resulted in lamellar structure with wide interlayer spacing, good chemical and thermal stability and thermoelectric and electrochromic properties. Throughout this advancement, its performance for industrial applications have made a strong candidate in electrochromic devices, photovoltaic cell, reversible cathode materials for Li batteries, supercapacitor, among others. This chapter will be to assist an updated review since the first synthesis up to current development.

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Section: Properties and Applicationsmentioning

confidence: 99%

Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications

Cestarolli¹,

Guerra²

2021

Transition Metal Compounds - Synthesis, Properties, and Application

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“…The sensor was very highly sensitive enough to low concentrations of NO 2 gas in the range from 100 to 500 ppb, at a pH 2.0 and using 0.25 V vs Ag-AgCl. Solid-state amperometric gas sensor based on Nafion/Pt/nanostructured PANI/Au/Al 2 O 3 and xerogel Ag/V 2 O 5 /nanofibrous PANI/Ag hybrids were also investigated for detecting H 2 and NH 3 , respectively [109,110]. The sensitivity and response time for H 2 gas was remarkably promoted by decreasing the Nafion film thickness, and the charge passed for the electrodeposition of Pt and PANI with activity was found to be 338.50 μA ppm −1 g −1 for measuring 10-10,000 ppm H 2 .…”

Section: Amperometric Sensorsmentioning

confidence: 99%

Gas Sensors Based on Conducting Polymers

Torad¹,

Ayad²

2020

Gas Sensors

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Since the discovery of conducting polymers (CPs), their unique properties and tailor-made structures on-demand have shown in the last decade a renaissance and have been widely used in fields of chemistry and materials science. The chemical and thermal stability of CPs under ambient conditions greatly enhances their utilizations as active sensitive layers deposited either by in situ chemical or by electrochemical methodologies over electrodes and electrode arrays for fabricating gas sensor devices, to respond and/or detect particular toxic gases, volatile organic compounds (VOCs), and ions trapping at ambient temperature for environmental remediation and industrial quality control of production. Due to the extent of the literature on CPs, this chapter, after a concise introduction about the development of methods and techniques in fabricating CP nanomaterials, is focused exclusively on the recent advancements in gas sensor devices employing CPs and their nanocomposites. The key issues on nanostructured CPs in the development of state-of-the-art miniaturized sensor devices are carefully discussed. A perspective on next-generation sensor technology from a material point of view is demonstrated, as well. This chapter is expected to be comprehensive and useful to the chemical community interested in CPs-based gas sensor applications.

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“…More importantly, inorganic and organic composites have drawn much attention for they can overcome the shortcomings of each other in gas sensor performance. Specifically, the conductive polymers can work effectively at room temperature, and among these, PANI has been considered a better NH 3 sensor at room temperature (Shin et al, 2008;Wen et al, 2013;Li et al, 2016;Syrovy et al, 2016;Kumar et al, 2017;Bai et al, 2018;Liu B. T. et al, 2018;Nie et al, 2018;Tang et al, 2018Tang et al, , 2019Santos et al, 2019). Several PANI and oxide semiconductors composites, like V 2 O 5 @PANI (Santos et al, 2019), CeO 2 @PANI (Liu C. H. et al, 2018), SiO 2 @PANI (Nie et al, 2018), SnO 2 @PANI (Bai et al, 2018), etc., have been reported as effective room temperature gas sensors.…”

Section: Introductionmentioning

confidence: 99%

Interface Design of SnO2@PANI Nanotube With Enhanced Sensing Performance for Ammonia Detection at Room Temperature

Jia

Liu

et al. 2020

Front. Chem.

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Gas sensors with excellent stability and a high response at room temperature has drawn a great deal of attention and demand for them is huge. Surface designs provide inspiration toward making more useful sensor devices. The facile electrospinning process and Ar plasma treatment are used to fabricate rich and stable oxygen vacancies that contain a core-shell structured SnO 2 polyaniline (PANI) nanotube. It shows that the induced surface oxygen vacancies would accelerate the PANI shell to generate more protons, which can enhance its sensor responsibility through reacting with the target Ammonia (NH 3) gas. It was also found that the obtained oxygen vacancies can be well-protected by the coated PANI shell, which enhance and stabilize the gas response. It shows that the room temperature for the gas response of NH 3 can reach up to 35.3 at 100 ppm. Finally, its good stability is demonstrated by the response-recovery performances carried out over 3 months and multiple cycles. This work indicates that this well-designed PANI-coated plasma-treated SnO 2 is a potential way to design ammonia gas sensors.

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Synthesis and characterization of V2O5/PANI thin films for application in amperometric ammonia gas sensors

Cited by 45 publications

References 27 publications

Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications

Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications

Gas Sensors Based on Conducting Polymers

Interface Design of SnO2@PANI Nanotube With Enhanced Sensing Performance for Ammonia Detection at Room Temperature

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Synthesis and characterization of V2O5/PANI thin films for application in amperometric ammonia gas sensors

Cited by 45 publications

References 27 publications

Vanadium Pentoxide (V2O5): Their Obtaining Methods and Wide Applications

Vanadium Pentoxide (V2O5): Their Obtaining Methods and Wide Applications

Gas Sensors Based on Conducting Polymers

Interface Design of SnO2@PANI Nanotube With Enhanced Sensing Performance for Ammonia Detection at Room Temperature

Contact Info

Product

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Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications

Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications