Synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single wall carbon nanotubes
In this paper we report on the synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single walled carbon nanotubes (CoTAPc–SWCNT-linked) for use as electrode surface modifiers. FTIR, UV–vis and Raman spectroscopies were used to ascertain the chem...
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2016
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| Online Access: | http://www.sciencedirect.com.access.msu.ac.zw:2048/science/article/pii/S0013468609007737 |
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| author | Mugadza, Tawanda Nyokong, Tebello |
| author_facet | Mugadza, Tawanda Nyokong, Tebello |
| author_sort | Mugadza, Tawanda |
| collection | DSpace |
| description | In this paper we report on the synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single walled carbon nanotubes (CoTAPc–SWCNT-linked) for use as electrode surface modifiers. FTIR, UV–vis and Raman spectroscopies were used to ascertain the chemical linkage between CoTAPc and SWCNT while cyclic voltammetry and rotating disk electrode voltammetry were used to assess the electrocatalytic efficiency of the linked product towards the oxidation of 2-mercaptoethanol. The CoTAPc–SWCNT-linked-GCE demonstrated very good catalytic efficiency relative to CoTAPc–SWCNT-mixed-GCE, CoTAPc-GCE and f-SWCNTs-GCE (functionalised SWCNT). CoTAPc–SWCNT-linked-GCE gave a sensitivity of 0.2 μA/μM and a limit of detection (LOD) of 1.2 × 10−7 M for 2-mercaptoethanol (2-ME) at pH 4. |
| format | Article |
| id | ir-11408-1086 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | ir-11408-10862022-06-27T13:49:06Z Synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single wall carbon nanotubes Mugadza, Tawanda Nyokong, Tebello Single walled carbon nanotubes Tetraamino cobalt (II) phthalocyanine 2-Mercaptoethanol Cyclic voltammetry In this paper we report on the synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single walled carbon nanotubes (CoTAPc–SWCNT-linked) for use as electrode surface modifiers. FTIR, UV–vis and Raman spectroscopies were used to ascertain the chemical linkage between CoTAPc and SWCNT while cyclic voltammetry and rotating disk electrode voltammetry were used to assess the electrocatalytic efficiency of the linked product towards the oxidation of 2-mercaptoethanol. The CoTAPc–SWCNT-linked-GCE demonstrated very good catalytic efficiency relative to CoTAPc–SWCNT-mixed-GCE, CoTAPc-GCE and f-SWCNTs-GCE (functionalised SWCNT). CoTAPc–SWCNT-linked-GCE gave a sensitivity of 0.2 μA/μM and a limit of detection (LOD) of 1.2 × 10−7 M for 2-mercaptoethanol (2-ME) at pH 4. 2016-04-27T10:18:51Z 2016-04-27T10:18:51Z 2009 Article 0013-4686 http://www.sciencedirect.com.access.msu.ac.zw:2048/science/article/pii/S0013468609007737 en Electrochimica Acta;Vol.54, no. 26 open Elsevier |
| spellingShingle | Single walled carbon nanotubes Tetraamino cobalt (II) phthalocyanine 2-Mercaptoethanol Cyclic voltammetry Mugadza, Tawanda Nyokong, Tebello Synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single wall carbon nanotubes |
| title | Synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single wall carbon nanotubes |
| title_full | Synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single wall carbon nanotubes |
| title_fullStr | Synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single wall carbon nanotubes |
| title_full_unstemmed | Synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single wall carbon nanotubes |
| title_short | Synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (II) phthalocyanine and single wall carbon nanotubes |
| title_sort | synthesis and characterization of electrocatalytic conjugates of tetraamino cobalt (ii) phthalocyanine and single wall carbon nanotubes |
| topic | Single walled carbon nanotubes Tetraamino cobalt (II) phthalocyanine 2-Mercaptoethanol Cyclic voltammetry |
| url | http://www.sciencedirect.com.access.msu.ac.zw:2048/science/article/pii/S0013468609007737 |
| work_keys_str_mv | AT mugadzatawanda synthesisandcharacterizationofelectrocatalyticconjugatesoftetraaminocobaltiiphthalocyanineandsinglewallcarbonnanotubes AT nyokongtebello synthesisandcharacterizationofelectrocatalyticconjugatesoftetraaminocobaltiiphthalocyanineandsinglewallcarbonnanotubes |