Local grain-to-grain conductivity in an SnO2–V2O5 nanocomposite ethanol sensor

Muthukumaravel, Chitra; Karunakaran, Uthayarani; Mangamma, G.

doi:10.1088/1361-6528/ab91f4

Cited by 15 publications

(8 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bisphenol A epoxy resin E44 (EP), Nantong Xingchen Synthetic Mat (Nantong, China); the curing agent is 651 low molecular polyamide resin, shan United Auxiliary Factory; micron filler is SiC, particle size 23 μm (600 m percentage is 20 wt%, 30 wt%, 40 wt%, 50 wt% with nano-SiO2 modified by c γ-KH550, Beijing Deke Guiding Gold Ltd. (Beijing, China) with 1 wt%, 2 w The larger specific surface area of nanoparticles makes the interfacial region occupy a large volume fraction inside the nano-doped dielectric so that the interface will have a consequential impact on the properties of the dielectric [13]. Nonlinear anti-corona materials fixed by three substance blends in dissimilar dimensions can simultaneously regard both nonlinear conductivity and breakdown strength as important.…”

Section: Raw Materialsmentioning

confidence: 99%

“…The agglomeratio occurs when the nanofiller is excessively loaded due to the small size effect o with high surface energy, which declines the performance of nanocomposit present research about nanodielectric is conducted on the interface, i.e., the na tion region between nanoparticles and polymer matrix, and the nanoparticle in matically shown in Figure 1. The larger specific surface area of nanoparticles makes the interfacial a large volume fraction inside the nano-doped dielectric so that the interfa consequential impact on the properties of the dielectric [13]. Nonlinear ant rials fixed by three substance blends in dissimilar dimensions can simultan both nonlinear conductivity and breakdown strength as important.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Properties and Simulating Research of Epoxy Resin/Micron-SiC/Nano-SiO2 Composite

et al. 2022

View full text Add to dashboard Cite

The dielectric behavior of insulations is a key factor affecting the development of anti-corona materials for generators. Epoxy resin (EP), as the matrix, is blended with inorganic fillers of micron SiC and nano SiO2 to investigate the effect of micro and nano doping on the conductivity and breakdown mechanism of the composites. Using experimental and simulation analysis, it is found that the effect of nano-SiO2 doping concentration on the conductivity is related to the dispersion of SiC particles. The lower concentration of SiO2 could decrease the conductivity of the composites. The conductivity increases with raising the nano-SiO2 doping concentration to a critical value. Meanwhile, the breakdown field strength of the composites decreases with the rising content of SiC in constant SiO2 and increases with more SiO2 when mixed with invariable SiC. When an equivalent electric field is applied to the samples, the electric field at the interface of micron particles is much stronger than the average field of the dielectric, close to the critical electric field of the tunneling effect. The density of the homopolar space charge bound to the surface of the stator bar elevates as the concentration of filled nanoparticles increases, by which a more effective Coulomb potential shield can be built to inhibit the further injection of carriers from the electrode to the interior of the anti-corona layer, thus reducing the space charge accumulation in the anti-corona layer as well as increasing the breakdown field strength of the dielectric.

show abstract

Section: Raw Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Properties and Simulating Research of Epoxy Resin/Micron-SiC/Nano-SiO2 Composite

et al. 2022

View full text Add to dashboard Cite

show abstract

“…As noted in Table 2, these meso-/macro-porous nanostructures displays their good responses to alcoholic vapors at different working temperatures (lie between 150 and 350 • C). For example, hierarchical Co-doped ZnO mesoporous structure [221] [236] was demonstrated with its sensitivity to ethanol (~66% for 160 ppm) through local grain-to-grain conductivity, but details on other sensor properties, such as response/recovery time and LOD were not available. Moreover, RGO-SnO 2 NPs composite [235] seems to be significant in terms of its capable operation between 24 and 98% humid conditions.…”

Section: Alcoholic Vapor Detection By Miscellaneous Nanostructuresmentioning

confidence: 99%

Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing

Shellaiah

Sun

2021

Sensors

View full text Add to dashboard Cite

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.

show abstract

“…Many researchers have carried out their work on different materials such as ZnO, [3][4][5] SnO 2 , [6] Co 3 O 4 , [6,7] and V 2 O 5 . [8][9][10] To improve the gas molecule interaction in semiconductor surfaces, increasing the surface-to-volume ratio, and changing the energy band structure and morphology, doping the surface with different materials are common practice in the design of gas sensor material.…”

Section: Introductionmentioning

confidence: 99%

Electrospun ZnO Nanofiber Based Resistive Gas/Vapor Sensors -A Review

Prabhu¹,

Chandra²,

Rajendra³

et al. 2022

Eng. Sci.

View full text Add to dashboard Cite

Resistive zinc oxide (ZnO) sensors play a pivotal role in detecting various gases and vapors due to their high response, low cost, stability, tunability, and simple fabrication. Hence, it is necessary to know the recent status of research in resistive ZnO sensors. The sensitivity is determined by the reactions at the surface of the nanofiber (NF); therefore, the surface area defines the foremost sensor characteristics. Electrospun metal oxide NFs exhibit a high surface area and unique electrical properties that can be tuned, and they are highly sought as the materials for resistive gas sensors. So far, various strategies are adopted to improve the sensitivity and the selectivity of ZnO NFs. This review summarizes the recent methods utilized by various researchers to improve the sensitivity of the ZnO electrospun metal oxide NF-based resistive gas sensors. Also, it discusses the influence of process parameters on the structure and morphology of ZnO NFs, the mechanism of gas sensing and highlights its improvement through advanced methods. The sensitivity of the NF has been improved through tuning the structure and morphology of NFs and doping. Further, modification of NF sensitivity through functionalization, the addition of carbon nanomaterials, and high-energy irradiation are also discussed. Based on the recent literature, the performance of doped ZnO NF for various gas sensing is highlighted. The outcome of this review gives insight to academic researchers and industry for further investigation and development in resistive gas sensors and its applications.

show abstract

Local grain-to-grain conductivity in an SnO₂–V₂O₅ nanocomposite ethanol sensor

Cited by 15 publications

References 34 publications

Properties and Simulating Research of Epoxy Resin/Micron-SiC/Nano-SiO2 Composite

Properties and Simulating Research of Epoxy Resin/Micron-SiC/Nano-SiO2 Composite

Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing

Electrospun ZnO Nanofiber Based Resistive Gas/Vapor Sensors -A Review

Contact Info

Product

Resources

About