Synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis
In this paper we report on the synthesis, characterization and use of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in the electrocatalysis of amitrole and diuron. UV–Vis, FTIR and XRD spectroscopies were used in the characterization of cobalt(II)-tris(benzyl-mercapto)-mono(car...
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Elsevier
2016
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| Online Access: | http://dx.doi.org.access.msu.ac.zw:2048/10.1016/j.poly.2011.04.020 |
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| author | Mugadza, Tawanda |
| author_facet | Mugadza, Tawanda |
| author_sort | Mugadza, Tawanda |
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| description | In this paper we report on the synthesis, characterization and use of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in the electrocatalysis of amitrole and diuron. UV–Vis, FTIR and XRD spectroscopies were used in the characterization of cobalt(II)-tris(benzyl-mercapto)-mono(carboxyphenoxy)-phthalocyanine conjugates (CoMCPc–PA-SWCNT(linked)), while AFM was used to show changes in surface morphologies of the modified electrodes. Cyclic voltammetry and chronoamperometry were used for the electrocatalytic oxidation of amitrole and diuron on the modified glassy carbon electrode. The catalytic rate constants for amitrole and diuron were found to be 1.83 × 106 and 1.99 × 106 M−1 s−1, respectively. The linear range for both was 1.0 × 10−5–2.0 × 10−4 M, with sensitivities of 5.10 and 3.70 A mol−1 L cm−2 for amitrole and diuron, respectively. The limits of detection were estimated to be 0.14 and 0.20 μM for amitrole and diuron, respectively, using the 3δ notation. |
| format | Article |
| id | ir-11408-1093 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| publisher | Elsevier |
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| spelling | ir-11408-10932022-06-27T13:49:06Z Synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis Mugadza, Tawanda Single walled carbon nanotubes Phenyl-amine Cobalt(II)-tris(benzyl-mercapto)-mono(carboxyphenoxy)-phthalocyanine Amitrole Diuron Voltammetry Chronoamperometry In this paper we report on the synthesis, characterization and use of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in the electrocatalysis of amitrole and diuron. UV–Vis, FTIR and XRD spectroscopies were used in the characterization of cobalt(II)-tris(benzyl-mercapto)-mono(carboxyphenoxy)-phthalocyanine conjugates (CoMCPc–PA-SWCNT(linked)), while AFM was used to show changes in surface morphologies of the modified electrodes. Cyclic voltammetry and chronoamperometry were used for the electrocatalytic oxidation of amitrole and diuron on the modified glassy carbon electrode. The catalytic rate constants for amitrole and diuron were found to be 1.83 × 106 and 1.99 × 106 M−1 s−1, respectively. The linear range for both was 1.0 × 10−5–2.0 × 10−4 M, with sensitivities of 5.10 and 3.70 A mol−1 L cm−2 for amitrole and diuron, respectively. The limits of detection were estimated to be 0.14 and 0.20 μM for amitrole and diuron, respectively, using the 3δ notation. 2016-04-27T11:50:01Z 2016-04-27T11:50:01Z 2011 Article 0277-5387 http://dx.doi.org.access.msu.ac.zw:2048/10.1016/j.poly.2011.04.020 en Polyhedron;Vol. 30, no 11 open Elsevier |
| spellingShingle | Single walled carbon nanotubes Phenyl-amine Cobalt(II)-tris(benzyl-mercapto)-mono(carboxyphenoxy)-phthalocyanine Amitrole Diuron Voltammetry Chronoamperometry Mugadza, Tawanda Synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis |
| title | Synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis |
| title_full | Synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis |
| title_fullStr | Synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis |
| title_full_unstemmed | Synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis |
| title_short | Synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis |
| title_sort | synthesis, characterization and application of monocarboxy-phthalocyanine-single walled carbon nanotube conjugates in electrocatalysis |
| topic | Single walled carbon nanotubes Phenyl-amine Cobalt(II)-tris(benzyl-mercapto)-mono(carboxyphenoxy)-phthalocyanine Amitrole Diuron Voltammetry Chronoamperometry |
| url | http://dx.doi.org.access.msu.ac.zw:2048/10.1016/j.poly.2011.04.020 |
| work_keys_str_mv | AT mugadzatawanda synthesischaracterizationandapplicationofmonocarboxyphthalocyaninesinglewalledcarbonnanotubeconjugatesinelectrocatalysis |