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Characterization and Electrocatalytic Activity of Nanocomposites Consisting of Nanosized Cobalt Tetraaminophenoxy Phthalocyanine, Multi‐walled Carbon Nanotubes and Gold Nanoparticles

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dc.contributor.author Shumba, Munyaradzi
dc.contributor.author Nyokong, Tebello
dc.date.accessioned 2018-11-02T09:58:26Z
dc.date.available 2018-11-02T09:58:26Z
dc.date.issued 2016
dc.identifier.issn 1040-0397
dc.identifier.uri https://doi.org/10.1002/elan.201501058
dc.identifier.uri http://hdl.handle.net/11408/3297
dc.description.abstract Glassy carbon electrodes were modified with composites containing cobalt tetraaminophenoxy phthalocyanine nanoparticles (CoTAPhPcNP), multi‐walled carbon nanotubes (MWCNT) and gold nanorods (AuNRs). The modified electrodes were studied for their electrocatalytic behavior towards the reduction of hydrogen peroxide. Phthalocyanine nanoparticles significantly improved electron transfer kinetics as compared to phthalocyanines which are not in the nanoparticle form when alone or in the presence of multiwalled carbon nanotubes (MWCNTs). CoTAPhPcNP‐MWCNT‐GCE proved to be suitable for hydrogen peroxide detection with a catalytic rate constant of 3.45×103 M−1 s−1 and a detection limit of 1.61×10−7 M. Adsorption Gibbs free energy ΔGo was found to be −19.22 kJ mol−1 for CoTAPhPcNP‐MWCNT‐GCE. en_US
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.relation.ispartofseries Electroanalysis;Vol.28, No. 7: p. 1478-1488
dc.subject Glassy carbon electrodes en_US
dc.subject Tetraaminophenoxy phthalocyanine nanoparticles en_US
dc.title Characterization and Electrocatalytic Activity of Nanocomposites Consisting of Nanosized Cobalt Tetraaminophenoxy Phthalocyanine, Multi‐walled Carbon Nanotubes and Gold Nanoparticles en_US
dc.type Article en_US


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