- Title
- Effects of substituents on the electrocatalytic activity of cobalt phthalocyanines when conjugated to graphene quantum dots
- Creator
- Centane, Sixolile, Achadu, Ojodomo John, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2017
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/188237
- Identifier
- vital:44737
- Identifier
- xlink:href="https://doi.org/10.1002/elan.201700252"
- Description
- We report on the π–π interactions between graphene quantum dots (GQDs) and the following cobalt phthalocyanine derivatives: cobalt monocarboxyphenoxy phthalocyanine (complex 1), cobalt tetracarboxyphenoxyphthalocyanine (complex 2), and cobalt tetraaminophenoxy phthalocyanine (complex 3). The conjugates (conj) with GQDs are represented as 1@GQDs(conj), 2@GQDs(conj) and 3@GQDs(conj), respectively. The resulting phthalocyanine/GQDs conjugates were adsorbed on containing a glassy carbon electrode (GCE) using the drop and dry method. We explore the electrochemical properties of phthalocyanines functionalized with both electron withdrawing groups and electron donating groups when non-covalently linked to the π-electron rich graphene quantum dots. GCE/3, GCE/2@GQDs(conj) and GCE/1@GQDs(conj) had the lowest limits of detection (LOD). Sequentially modified electrodes showed less favourable detection limits compared to the conjugates.
- Format
- computer, online resource, application/pdf, 1 online resource (13 pages), pdf
- Publisher
- Wiley Library Online
- Language
- English
- Relation
- Electroanalysis, Centane, S., Achadu, O.J. and Nyokong, T., 2017. Effects of substituents on the electrocatalytic activity of cobalt phthalocyanines when conjugated to graphene quantum dots. Electroanalysis, 29(11), pp.2470-2482, Electroanalysis volume 29 number 11 p. 2470 2017 1521-4109
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Wiley Library Online Terms of Use Statement (https://onlinelibrary.wiley.com/terms-and-conditions)
- Rights
- Closed Access
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Nyokong, Tebello (Distinguished Professor)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
RU Department of Chemistry
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