Abstract
In this paper we report on the use of carboxylic acid functionalized single walled carbon nanotubes (SWCNT) in the synthesis of 2,(3)-tetra-(4-oxo- benzamide)phthalocyaninato cobalt (II)-single walled carbon nanotube conjugates (CoTOBPc-SWCNT), their characterization and application in the electrocatalytic oxidation of amitrole. Cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy were used for the detection of amitrole on the modified glassy carbon electrode. The catalytic rate constant was 1.6 × 10 3 M -1 s -1 and the apparent electron rate transfer constant was 1.5 × 10 -5 cm s -1. The linear dynamic range was 1.0 × 10 -6-3.0 × 10 -5 M, with a sensitivity of ∼1.13 A mol -1 L cm -2.
| Original language | English |
|---|---|
| Pages (from-to) | 44-51 |
| Number of pages | 8 |
| Journal | Electrochimica Acta |
| Volume | 68 |
| DOIs | |
| Publication status | Published - 30 Apr 2012 |
| Externally published | Yes |
Funding
This work was supported by the Department of Science and Technology (DST) and National Research Foundation (NRF) , South Africa through DST/NRF South African Research Chairs Initiative for Professor of Medicinal Chemistry and Nanotechnology as well as Rhodes University. TM would like to thank Rhodes University for the post-doctoral fellowship and Midlands State University (Zimbabwe) for the Leave of Absence. YA thanks to Istanbul Technical University, DPT and TUBITAK.
| Funders | Funder number |
|---|---|
| National Research Foundation | |
| Rhodes University | |
| Department of Science and Technology, Ministry of Science and Technology, India | |
| Midlands State University |
Keywords
- Amitrole
- Chronoamperometry
- Cobalt (II) phthalocyanine
- Single walled carbon nanotubes
- Voltammetry