Abstract
In this paper we describe a new method to fabricate TiO2@C core-shell nanofiber arrays for electrochemical sensing. The TiO2@C nanofiber arrays have been produced directly on titanium surface under acetone vapor at 800 ℃. This TiO2@C core-shell nanofiber arrays have the 40 nm TiO2 core in diameter and 5-10 nm carbon shell in thickness and show good electrochemical behaviors. The cyclic voltammogram in 1.0 × 10-3 mol/L K3Fe(CN)6 is quasi-reversible. The amperometric response increases linearly with the increase of the concentration of dopamine in the range of 1.0 × 10-7 - 1.0 × 10-4 mol/L. The detection limit (S/N=3) of dopamine is 2.45 × 10-8 mol/L.
| Translated title of the contribution | Fabrication of TiO2@C Core-shell Nanofiber Arrays Electrode and Its Appdication in Electrochemical Sensing |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 2542-2544 |
| Journal | 高等学校化学学报 |
| Volume | 29 |
| Issue number | 12 |
| Publication status | Published - Dec 2008 |
Research Keywords
- 纳米碳纤维
- 化学气相沉积
- 电化学传感器
- 多巴胺
- Carbon nanofiber
- Chemical vapor deposition
- Electrochemical Sensor
- Dopamine
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