Covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (II) tetracarboxyl-phthalocyanines for use in electrocatalysis
In this paper, we report on the use of ethylene amine (EA) side-wall functionalized single-walled carbon nanotubes (SWCNT) in the synthesis of covalently linked cobalt (II) tetracarboxylphthalocyanine complex (CoTCPc–EA–SWCNT(linked)), the characterization of the linked complex and the application o...
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2016
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| author | Mugadza, Tawanda Nyokong, Tebello |
| author_facet | Mugadza, Tawanda Nyokong, Tebello |
| author_sort | Mugadza, Tawanda |
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| description | In this paper, we report on the use of ethylene amine (EA) side-wall functionalized single-walled carbon nanotubes (SWCNT) in the synthesis of covalently linked cobalt (II) tetracarboxylphthalocyanine complex (CoTCPc–EA–SWCNT(linked)), the characterization of the linked complex and the application of this complex in the electrocatalytic oxidation of amitrole. UV–vis,FTIR, TEM, Raman and XRD spectroscopies were used in characterization of CoTCPc–EA–SWCNT complex, while cyclic voltammetry, rotating disc electrode (RDE) voltammetry, chronoamperometry and electrochemical impedance spectroscopy were used during the characterization of amitrole on the modified glassy carbon electrode. Thermogravimetric analysis (TGA) was used to confirm the extend of functionalisation of of SWCNTs. The catalytic rate constant was 1.2 × 103 M−1 s−1 and the apparent electron rate transfer constant was 3.0 × 10−5 cm s−1 . The linear dynamic range was 1.0 × 10−5–1.6 × 10−4 M, with a sensitivity of ∼0.76 A mol−1 L cm−2 and a limit of detection of 0.1 M using the 3 notation. |
| format | Article |
| id | ir-11408-1036 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | ir-11408-10362022-06-27T13:49:06Z Covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (II) tetracarboxyl-phthalocyanines for use in electrocatalysis Mugadza, Tawanda Nyokong, Tebello Single-walled carbon nanotubes Ethylene amine Cobalt (II) tetracarboxyl-phthalocyanine Amitrole Voltammetry Impedance spectroscopy In this paper, we report on the use of ethylene amine (EA) side-wall functionalized single-walled carbon nanotubes (SWCNT) in the synthesis of covalently linked cobalt (II) tetracarboxylphthalocyanine complex (CoTCPc–EA–SWCNT(linked)), the characterization of the linked complex and the application of this complex in the electrocatalytic oxidation of amitrole. UV–vis,FTIR, TEM, Raman and XRD spectroscopies were used in characterization of CoTCPc–EA–SWCNT complex, while cyclic voltammetry, rotating disc electrode (RDE) voltammetry, chronoamperometry and electrochemical impedance spectroscopy were used during the characterization of amitrole on the modified glassy carbon electrode. Thermogravimetric analysis (TGA) was used to confirm the extend of functionalisation of of SWCNTs. The catalytic rate constant was 1.2 × 103 M−1 s−1 and the apparent electron rate transfer constant was 3.0 × 10−5 cm s−1 . The linear dynamic range was 1.0 × 10−5–1.6 × 10−4 M, with a sensitivity of ∼0.76 A mol−1 L cm−2 and a limit of detection of 0.1 M using the 3 notation. 2016-04-26T09:51:07Z 2016-04-26T09:51:07Z 2010 Article 0379-6779 http://ac.els-cdn.com/S0379677910003176/1-s2.0-S0379677910003176-main.pdf?_tid=14d017fc-0b91-11e6-94e7-00000aacb361&acdnat=1461663023_a832ba08d93cee9b727f18fd893d1ab7 en Synthetic Metals;Vol. 160 open Elsevier |
| spellingShingle | Single-walled carbon nanotubes Ethylene amine Cobalt (II) tetracarboxyl-phthalocyanine Amitrole Voltammetry Impedance spectroscopy Mugadza, Tawanda Nyokong, Tebello Covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (II) tetracarboxyl-phthalocyanines for use in electrocatalysis |
| title | Covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (II) tetracarboxyl-phthalocyanines for use in electrocatalysis |
| title_full | Covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (II) tetracarboxyl-phthalocyanines for use in electrocatalysis |
| title_fullStr | Covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (II) tetracarboxyl-phthalocyanines for use in electrocatalysis |
| title_full_unstemmed | Covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (II) tetracarboxyl-phthalocyanines for use in electrocatalysis |
| title_short | Covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (II) tetracarboxyl-phthalocyanines for use in electrocatalysis |
| title_sort | covalent linking of ethylene amine functionalized single-walled carbon nanotubes to cobalt (ii) tetracarboxyl-phthalocyanines for use in electrocatalysis |
| topic | Single-walled carbon nanotubes Ethylene amine Cobalt (II) tetracarboxyl-phthalocyanine Amitrole Voltammetry Impedance spectroscopy |
| url | http://ac.els-cdn.com/S0379677910003176/1-s2.0-S0379677910003176-main.pdf?_tid=14d017fc-0b91-11e6-94e7-00000aacb361&acdnat=1461663023_a832ba08d93cee9b727f18fd893d1ab7 |
| work_keys_str_mv | AT mugadzatawanda covalentlinkingofethyleneaminefunctionalizedsinglewalledcarbonnanotubestocobaltiitetracarboxylphthalocyaninesforuseinelectrocatalysis AT nyokongtebello covalentlinkingofethyleneaminefunctionalizedsinglewalledcarbonnanotubestocobaltiitetracarboxylphthalocyaninesforuseinelectrocatalysis |