- Title
- Fabrication and characterization of single walled carbon nanotubes-iron phthalocyanine nano-composite
- Creator
- Akinbulu, Isaac A, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2010
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/262622
- Identifier
- vital:53537
- Identifier
- xlink:href="https://doi.org/10.1039/C0NJ00395F"
- Description
- Nano-composite of single walled carbon nanotubes (SWCNTs) and iron phthalocyanine, peripherally tetra-substituted with diethylaminoethanethiol (complex 2), was fabricated and characterized by infra red (IR) spectroscopy, X-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM technique gave a convincing image of the nano-composite. Self-assembled monolayer (SAM) film of the composite (SWCNT-2-SAM) was formed on gold electrode. Its surface properties were investigated, relative to that of 2-SAM film, by cyclic voltammetry and scanning electron microscopy (SEM). Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry, using [Fe(CN)6]3− as redox probe, were used to investigate the dynamics of electron transport in the SWCNT-2-SAM film. Lower charge transfer resistance, RCT, of the SWCNT-2-SAM modified Au electrode, relative to that of the 2-SAM modified Au electrode, was an indication of enhanced electron transport in the presence of SWCNT. The SAM film of the nano-composite showed better electrocatalytic behaviour, relative to that of 2-SAM film, towards the oxidation of the insecticide, carbofuran. The electrode (SWCNT-2-SAM) showed good selectivity for carbofuran, in the presence of diazinon (a non-electroactive interferent) and at lower concentration of the electroactive interferents (chlorpyrifos and dichlorfos).
- Format
- computer, online resource, application/pdf, 1 online resource (12 pages), pdf
- Publisher
- Royal Society of Chemistry
- Language
- English
- Relation
- New Journal of Chemistry, Akinbulu, I.A. and Nyokong, T., 2010. Fabrication and characterization of single walled carbon nanotubes-iron phthalocyanine nano-composite: surface properties and electron transport dynamics of its self assembled monolayer film. New Journal of Chemistry, 34(12), pp.2875-2886, New Journal of Chemistry volume 34 number 12 p. 2875 2010 1369-9261
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Royal Society of Chemistry Terms and Conditions Statement (https://0-www.rsc.org.wam.seals.ac.za/help-legal/)
- Rights
- Open Access
- Hits: 459
- Visitors: 523
- Downloads: 70
Collections
Nyokong, Tebello (Distinguished Professor)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Fabrication and characterization of single walled carbon nanotubes-iron phthalocyanine nano-composite.pdf | 1 MB | Adobe Acrobat PDF | View Details Download |