Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium
Tetrakis[(benzo[d]thiazol-2-yl-thio) phthalocyaninato] gallium(III)chloride (1) and tetrakis[(benzo[d]thiazol-2ylphenoxy) phthalocyaninato] gallium(III)chloride (2) were successfully electrodeposited onto aluminium for corrosion retardation in 1.0 M hydrochloric acid solution. The aim of this study...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Electrochemistry |
| Online Access: | http://dx.doi.org/10.1155/2020/8892559 |
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| author | Nnaemeka Nnaji Njemuwa Nwaji Tebello Nyokong |
| author_facet | Nnaemeka Nnaji Njemuwa Nwaji Tebello Nyokong |
| author_sort | Nnaemeka Nnaji |
| collection | DOAJ |
| description | Tetrakis[(benzo[d]thiazol-2-yl-thio) phthalocyaninato] gallium(III)chloride (1) and tetrakis[(benzo[d]thiazol-2ylphenoxy) phthalocyaninato] gallium(III)chloride (2) were successfully electrodeposited onto aluminium for corrosion retardation in 1.0 M hydrochloric acid solution. The aim of this study was to compare the corrosion resistance of electrodeposited metallated phthalocyanines. Scanning electron microscopy, X-ray diffraction, electrochemical impedance spectroscopy (EIS), and polarization confirmed the aluminium corrosion inhibition potentials of complexes 1 and 2. EIS and polarization techniques showed that complex 2 performed better than complex 1, with values from EIS measurements of 82% for 1 and 86% for 2 in 1.0 M hydrochloric acid solution. The importance of electrodeposition in industries and a dearth of research on the use of electrodeposited metallated phthalocyanines necessitated this study, and results show that coatings formed by electrodeposition of 1 and 2 onto aluminium reduced its susceptibility to corrosion attack. |
| format | Article |
| id | doaj-art-e6e6159954db42f3a249c1b2d40e515d |
| institution | Kabale University |
| issn | 2090-3529 2090-3537 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Electrochemistry |
| spelling | doaj-art-e6e6159954db42f3a249c1b2d40e515d2025-08-20T03:26:11ZengWileyInternational Journal of Electrochemistry2090-35292090-35372020-01-01202010.1155/2020/88925598892559Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic MediumNnaemeka Nnaji0Njemuwa Nwaji1Tebello Nyokong2Department of Chemistry, Rhodes University, Grahamstown 6140, South AfricaDepartment of Chemistry, Rhodes University, Grahamstown 6140, South AfricaDepartment of Chemistry, Rhodes University, Grahamstown 6140, South AfricaTetrakis[(benzo[d]thiazol-2-yl-thio) phthalocyaninato] gallium(III)chloride (1) and tetrakis[(benzo[d]thiazol-2ylphenoxy) phthalocyaninato] gallium(III)chloride (2) were successfully electrodeposited onto aluminium for corrosion retardation in 1.0 M hydrochloric acid solution. The aim of this study was to compare the corrosion resistance of electrodeposited metallated phthalocyanines. Scanning electron microscopy, X-ray diffraction, electrochemical impedance spectroscopy (EIS), and polarization confirmed the aluminium corrosion inhibition potentials of complexes 1 and 2. EIS and polarization techniques showed that complex 2 performed better than complex 1, with values from EIS measurements of 82% for 1 and 86% for 2 in 1.0 M hydrochloric acid solution. The importance of electrodeposition in industries and a dearth of research on the use of electrodeposited metallated phthalocyanines necessitated this study, and results show that coatings formed by electrodeposition of 1 and 2 onto aluminium reduced its susceptibility to corrosion attack.http://dx.doi.org/10.1155/2020/8892559 |
| spellingShingle | Nnaemeka Nnaji Njemuwa Nwaji Tebello Nyokong Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium International Journal of Electrochemistry |
| title | Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium |
| title_full | Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium |
| title_fullStr | Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium |
| title_full_unstemmed | Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium |
| title_short | Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium |
| title_sort | electrodeposited benzothiazole phthalocyanines for corrosion inhibition of aluminium in acidic medium |
| url | http://dx.doi.org/10.1155/2020/8892559 |
| work_keys_str_mv | AT nnaemekannaji electrodepositedbenzothiazolephthalocyaninesforcorrosioninhibitionofaluminiuminacidicmedium AT njemuwanwaji electrodepositedbenzothiazolephthalocyaninesforcorrosioninhibitionofaluminiuminacidicmedium AT tebellonyokong electrodepositedbenzothiazolephthalocyaninesforcorrosioninhibitionofaluminiuminacidicmedium |