Rapid, repetitive and selective NO2 gas sensor based on boron-doped activated carbon fibers
| Autor: | Yoong Ahm Kim, Yong-Il Ko, Jae-Hyung Wee, Seung Yol Jeong, Hee Jou Kim, Cheol-Min Yang, Sumin Ha, Doo Won Kim, Tomohiro Tojo |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
High selectivity General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Surfaces and Interfaces General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Porous carbon Adsorption chemistry Chemical engineering Boron doping medicine 0210 nano-technology Boron Strong binding Activated carbon medicine.drug |
| Zdroj: | Applied Surface Science. 531:147395 |
| ISSN: | 0169-4332 |
| Popis: | In the current work, a high performance NO2 gas sensors has been fabricated from activated carbon fibers containing enriched boron moieties. The porous carbon fibers decorated with boron moieties exhibited rapid, repetitive and selective NO2 sensing performance at room temperature. The shallow, narrow and uniform micropores on the surface of the carbon fiber allowed target gases to be adsorbed and desorbed very easily whereas boron moieties induced high selectivity toward NO2 over NH3 via the strong binding energy. The excellent NO2 gas sensing performance of boron doped porous carbon fibers is attributed to synergetic effect of intrinsic pore structure of the carbon fibers and the boron moieties decorated on their surface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect