Pt-doped TiO&lt;sub&gt;2&lt;/sub&gt;-based sensors for detecting SF&lt;sub&gt;6&lt;/sub&gt; decomposition components

Zhang, Xiaoxing; Tie, Jing; Chen, Qinchuan; Zhou, Ming

doi:10.1109/tdei.2015.7116351

Cited by 14 publications

(3 citation statements)

References 22 publications

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“…Bastakoti et al [98] found that the introduction of platinum (Pt) on the surface of the mesoporous TiO 2 increased the sensor's sensitivity to acetaldehyde at room temperature, as well as, the sensor exhibited a higher adsorption rate and excellent absorption of acetaldehyde adsorption compared to pure mesoporous TiO 2 . The use of Pt in TiO 2 is also reported as a noble metal that favors the sensitivity of TiO 2 for the detection of other gases [99,100]. Xing et al [101] synthesized via hydrothermal method (5.67).…”

Section: Tio 2 -Doping or Assistant Metalsmentioning

confidence: 99%

Use of nanostructured and modified TiO2 as a gas sensing agent

Alves

Cartaxo

et al. 2021

Cerâmica

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Titanium dioxide (TiO 2 ) has attracted interest for sensory applications due to its high surface area and the high density of active adsorption sites. This review shows the effect of the nanostructure, synthesis technique, operating temperature, target gas, and the impact of incorporating metallic elements on the detection properties of TiO 2 . The studies showed that the TiO 2 gas detection process is closely related to surface reactions. Therefore, sensing properties, such as sensitivity, response time, and recovery, vary with factors that influence the surface reactions, such as chemical elements, morphology, microstructure of the depletion layer, and operating temperature.

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Section: Tio 2 -Doping or Assistant Metalsmentioning

confidence: 99%

Use of nanostructured and modified TiO2 as a gas sensing agent

Alves

Cartaxo

et al. 2021

Cerâmica

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“…As to TiO 2 , Zhang's group [50,[110][111][112][113][114][115][116][117][118][119][120] did systemic research to explore its application in this field, from both experimental and theoretical aspects. In terms of experiment, pristine, Pt-and Audoped TiO 2 were synthesised to study their sensing property upon SO 2 , SOF 2 and SO 2 F 2 .…”

Section: Oxide Semiconducting Nanomaterialsmentioning

confidence: 99%

Nanomaterials‐based gas sensors of SF ₆ decomposed species for evaluating the operation status of high‐voltage insulation devices

et al. 2019

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In recent years, many novel sensing nanomaterials were explored experimentally and theoretically as chemical gas sensors to detect sulphur hexafluoride (SF 6) decomposed species with rapid response, high sensitivity and selectivity, as well as low cost, in order to estimate and guarantee the operation status of SF 6 insulation devices. However, there has been no systemic review yet to comprehensively understand their sensing mechanism and conclude their sensing application. Such kinds of nanomaterials include traditional carbon-based materials such as carbon nanotube and graphene, metal oxides such as SnO 2 , ZnO and TiO 2 , transition metal dichalcogenides such as MoS 2 monolayer and MoTe 2 monolayer as well as graphene-like InN monolayer. A systemic review would be significant to give a profound insight into the exploration of nanomaterial-based chemical gas sensors in the field of electrical engineering and to help youth scholars first stepping in this field rapidly master the progress inside. Thus, the authors attempt to complete this review here. They are hopeful that this review could provide some guidance to fulfil such purpose in the near future, and it would be full of perspective to explore more novel nanomaterials as defect indicators in SF 6 insulated devices. Furthermore, it is their hope that this review could broaden the sensing application of admirable nanomaterials in many fields such as environmental monitoring and pollutant scavenging.

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“…Sulfur hexafluoride (SF 6 ) as a widely used insulating medium in GIS due to its excellent insulating and arc-extinguishing properties [4,5]. Despite of the high reliability of GIS equipment, some internal defects could still lead to different degrees of partial discharge (PD) when the GIS equipment has been running for a long time [6]. When exposed to the energy of partial discharges, the SF 6 gas in GIS equipment could decompose and generate SF 4 , SF 3 , and SF 2 [7], as well as various low-fluorine sulfides.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Enhanced Sensing Properties of a NiO/ZnO p–n Junctions Sensor for the SF6 Decomposition Byproducts SO2, SO2F2, and SOF2

Liu

Zhou

Zhang

et al. 2017

Sensors

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The detection of partial discharge and analysis of the composition and content of sulfur hexafluoride SF6 gas components are important to evaluate the operating state and insulation level of gas-insulated switchgear (GIS) equipment. This paper reported a novel sensing material made of pure ZnO and NiO-decorated ZnO nanoflowers which were synthesized by a facile and environment friendly hydrothermal process for the detection of SF6 decomposition byproducts. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) were used to characterize the structural and morphological properties of the prepared gas-sensitive materials. Planar-type chemical gas sensors were fabricated and their gas sensing performances toward the SF6 decomposition byproducts SO2, SO2F2, and SOF2 were systemically investigated. Interestingly, the sensing behaviors of the fabricated ZnO nanoflowers-based sensor to SO2, SO2F2, and SOF2 gases can be obviously enhanced in terms of lower optimal operating temperature, higher gas response and shorter response-recovery time by introducing NiO. Finally, a possible gas sensing mechanism for the formation of the p–n junctions between NiO and ZnO is proposed to explain the enhanced gas response. All results demonstrate a promising approach to fabricate high-performance gas sensors to detect SF6 decomposition byproducts.

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Pt-doped TiO<sub>2</sub>-based sensors for detecting SF<sub>6</sub> decomposition components

Cited by 14 publications

References 22 publications

Use of nanostructured and modified TiO2 as a gas sensing agent

Use of nanostructured and modified TiO2 as a gas sensing agent

Nanomaterials‐based gas sensors of SF ₆ decomposed species for evaluating the operation status of high‐voltage insulation devices

Synthesis, Characterization and Enhanced Sensing Properties of a NiO/ZnO p–n Junctions Sensor for the SF6 Decomposition Byproducts SO2, SO2F2, and SOF2

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Pt-doped TiO<sub>2</sub>-based sensors for detecting SF<sub>6</sub> decomposition components

Cited by 14 publications

References 22 publications

Use of nanostructured and modified TiO2 as a gas sensing agent

Use of nanostructured and modified TiO2 as a gas sensing agent

Nanomaterials‐based gas sensors of SF 6 decomposed species for evaluating the operation status of high‐voltage insulation devices

Synthesis, Characterization and Enhanced Sensing Properties of a NiO/ZnO p–n Junctions Sensor for the SF6 Decomposition Byproducts SO2, SO2F2, and SOF2

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Nanomaterials‐based gas sensors of SF ₆ decomposed species for evaluating the operation status of high‐voltage insulation devices