| Autor: |
Zhiwen Shi, Lijuan Qiao, Mei Ma, Zhi Jia, Bingxin Liu, Li Gao |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Electrochemistry Communications, Vol 164, Iss , Pp 107738- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1388-2481 |
| DOI: |
10.1016/j.elecom.2024.107738 |
| Popis: |
Ethylene glycol is odorless and harmful to humans. Each year, a large number of fatal cases are caused by ethylene glycol poisoning. Therefore, rapid identification of ethylene glycol is crucial. In this study, clay-like Ti3C2Tx MXene exhibits a larger interlayer spacing compared to accordion-like Ti3C2Tx MXene, which enhances the gas diffusion channels. Nitrogen doping can increase the active sites of clay-like Ti3C2Tx MXene. The introduction of nitrogen-doped carbon nanotubes into N-Ti3C2Tx was carried out to enhance selectivity towards ethylene glycol, leading to the formation of N-Ti3C2Tx MXene/N-CNTs. The N-Ti3C2Tx MXene/N-CNTs exhibits significant selectivity towards the ethylene glycol at room temperature. Meanwhile, the detection limit was 0.3484 ppm, with a shortened response/recovery time of 10.57/6.29 s. Meanwhile, the ethylene glycol sensor device has been prepared through custom-made circuit boards and sensing programs. Moreover, the adsorption and oxidation process of ethylene glycol on N-Ti3C2Tx MXene/N-CNTs was explored through in-situ infrared spectroscopy testing. This study revealed that the oxygen vacancies on the surface of N-Ti3C2Tx MXene/N-CNTs play a crucial role in the oxidative catalytic detection of ethylene glycol. The strategy of N-Ti3C2Tx MXene/N-CNTs provides a new avenue for the detection of ethylene glycol. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
Full Text from ScienceDirect