Loading...
Please wait, while we are loading the content...
Similar Documents
Ni-CNT Chemical Sensor for SF6 Decomposition Components Detection: A Combined Experimental and Theoretical Study
| Content Provider | Semantic Scholar |
|---|---|
| Author | Gui, Yingang Zhang, Xiaoxing Lv, Peigeng Wang, Shan Tang, Chao Zhou, Qu |
| Copyright Year | 2018 |
| Abstract | SF₆ decomposition components detection is a key technology to evaluate and diagnose the insulation status of SF₆-insulated equipment online, especially when insulation defects-induced discharge occurs in equipment. In order to detect the type and concentration of SF₆ decomposition components, a Ni-modified carbon nanotube (Ni-CNT) gas sensor has been prepared to analyze its gas sensitivity and selectivity to SF₆ decomposition components based on an experimental and density functional theory (DFT) theoretical study. Experimental results show that a Ni-CNT gas sensor presents an outstanding gas sensing property according to the significant change of conductivity during the gas molecule adsorption. The conductivity increases in the following order: H₂S > SOF₂ > SO₂ > SO₂F₂. The limit of detection of the Ni-CNT gas sensor reaches 1 ppm. In addition, the excellent recovery property of the Ni-CNT gas sensor makes it easy to be widely used. A DFT theoretical study was applied to analyze the influence mechanism of Ni modification on SF₆ decomposition components detection. In summary, the Ni-CNT gas sensor prepared in this study can be an effective way to evaluate and diagnose the insulation status of SF₆-insulated equipment online. |
| Starting Page | 122 |
| Ending Page | 130 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.wikidata.org/entity/Q58559146 |
| PubMed reference number | 30332855v1 |
| Alternate Webpage(s) | https://doi.org/10.3390/s18103493 |
| DOI | 10.3390/s18103493 |
| Journal | Sensors |
| Volume Number | 18 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Classical nucleation theory Conflict (Psychology) Density functional theory Discharger Functional theories of grammar Insulation Device Component Limit of Detection Manuscripts Nanotubes Nanotubes, Carbon Neural Tube Defects Selectivity (electronic) Sensor Simulation Sulfur Dioxide Surgical revision Universities nickel part per million (ppm) |
| Content Type | Text |
| Resource Type | Article |
