Graphene oxide dispersed carbon nanotube and iron phthalocyanine composite modified electrode for the electrocatalytic determination of hydrazine

Veerappan Mani, A. T. Ezhil Vilian, Shen Ming Chen

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

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.

Original languageEnglish
Pages (from-to)12774-12785
Number of pages12
JournalInternational Journal of Electrochemical Science
Volume7
Issue number12
StatePublished - 2012

Keywords

  • Amperometry and practicality
  • GO-CNT-FePc
  • Hydrazine

Fingerprint

Dive into the research topics of 'Graphene oxide dispersed carbon nanotube and iron phthalocyanine composite modified electrode for the electrocatalytic determination of hydrazine'. Together they form a unique fingerprint.

Cite this