- Title
- Surface electrochemistry of iron phthalocyanine axially ligated to 4-mercaptopyridine self-assembled monolayers at gold electrode
- Creator
- Ozoemena, Kenneth I
- Creator
- Nyokong, Tebello
- Subject
- To be catalogued
- Date Issued
- 2005
- Date
- 2005
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/289282
- Identifier
- vital:56615
- Identifier
- xlink:href="https://doi.org/10.1016/j.jelechem.2005.02.018"
- Description
- Surface electrochemical behaviour of a self-immobilised iron phthalocyanine (FePc) ultrathin film, via axial ligation reaction, onto a preformed 4-mercaptopyridine self-assembled monolayer on gold electrode has been described. Electrochemical evidence for the sensor clearly suggested surface-confined, flat “umbrella”-oriented and densely-packed monolayer film structure. The proposed electrochemical sensor exhibited good catalytic activity towards the oxidation of thiocyanate in pH 4.0 medium over a linear range of three decades of concentration (ca. 10−6–10−3 mol dm−3) with a detection limit in the order of ∼10−7 mol dm−3. The sensor exhibited useful potential for the analysis of thiocyanate in human urine and saliva samples. The advantageous properties of this type of electrode as a sensor for thiocyanate lie in its ease of fabrication, excellent catalytic activity, stability, sensitivity and simplicity.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (7 pages)
- Format
- Publisher
- Elsevier
- Language
- English
- Relation
- Journal of Electroanalytical Chemistry
- Relation
- Ozoemena, K.I. and Nyokong, T., 2005. Surface electrochemistry of iron phthalocyanine axially ligated to 4-mercaptopyridine self-assembled monolayers at gold electrode: Applications to electrocatalytic oxidation and detection of thiocyanate. Journal of Electroanalytical Chemistry, 579(2), pp.283-289
- Relation
- Journal of Electroanalytical Chemistry volume 579 number 2 p. 283 2005 1873-2569
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
- Rights
- Closed Access
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Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
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