Abstract
We have synthesized graphene dispersed carbon nanotube and Iron phthalocyanine composite (GO-CNT-FePc) and successfully employed it for the electrochemical determination of hydrazine. The synthesized composite has been well characterized by scanning electron microscope (SEM), transmission emission microscopy (TEM) and energy-dispersive X-ray (EDX) spectroscopy. GO-CNT-FePc modified glassy carbon electrode (GCE) was prepared and its electrochemical behavior has been accessed by cyclic voltammetry. GO-CNT-FePc modified GCE exhibited highly enhanced hydrazine oxidation peak current at appreciably lower potential of +0.18 V. Therefore, the prepared GO-CNT-FePc modified GCE was demonstrated for the sensing of hydrazine by amperometry. The constructed GO-CNT-FePc modified electrode detects hydrazine in a wide linear range of 5 × 10-7- 8.35 × 10-5 M, with very low detection limit of 9.3×10-8 M. The sensor exhibited an acceptable repeatability and reproducibility. The excellent recoveries achieved for the hydrazine determination in various water samples reveal the promising practicality of the sensor. © 2012 by ESG.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 12774-12785 |
| Number of pages | 12 |
| Journal | International Journal of Electrochemical Science |
| Volume | 7 |
| Issue number | 12 |
| State | Published - Dec 20 2012 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electrochemistry