- Title
- Ball-type phthalocyanines and reduced graphene oxide nanoparticles as separate and combined corrosion inhibitors of aluminium in HCl
- Creator
- Nnaji, Nnaemeka
- Creator
- Nawji, Njemuwa
- Creator
- Mack, John
- Creator
- Nyokong, Tebello
- Subject
- To be catalogued
- Date Issued
- 2021
- Date
- 2021
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/185421
- Identifier
- vital:44385
- Identifier
- xlink:href="https://doi.org/10.1016/j.molstruc.2021.130279"
- Description
- Corrosion inhibition performances and adsorption behaviour at the aluminum-HCl solution interface were investigated for reduced graphene oxide nanosheets (rGONS), tetrakis-[4,4′-((4-(benzo[d]thiazol-2-yl)-1,2-bis(phenoxy)] (diphthalocyaninato gallium (III) chloride) (2) and tetrakis-4-(hexadecane-1,2-dioxyl)-bis(phthalocyaninato gallium(III) chloride) (1). Corrosion inhibition effects of rGONS, 1 and 2 were evaluated alone and in combination in 1.0 M hydrochloric acid solution using electrochemical techniques. The mechanism of aluminum corrosion inhibition revealed predominantly anodic character for rGONS and predominantly cathodic character for 1, 2, and conjugates with rGONS . The polarization technique gave inhibition efficiency values of 96.5% and 96.9% respectively for 1 and 2, which increased in the presence of rGONS to 97.4% and 98.1%, respectively, for the highest concentrations of 1 and 2. Scanning electron microscopy revealed effective metal surface protection by the inhibitors by formation of protective films.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (13 pages)
- Format
- Publisher
- Elsevier
- Language
- English
- Relation
- Journal of Molecular Structure
- Relation
- Nnaji, N., Nwaji, N., Mack, J. and Nyokong, T., 2021. Ball-type phthalocyanines and reduced graphene oxide nanoparticles as separate and combined corrosion inhibitors of aluminium in HCl. Journal of Molecular Structure, 1236, p.130279
- Relation
- Journal of Molecular Structure volume 1236 p. 130279 2021 0022-2860
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
- Rights
- Closed Access
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Collections
Mack, John (Associate Prof)
Nyokong, Tebello (Distinguished Professor)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Ball-type phthalocyanines and reduced graphene oxide nanoparticles.pdf | 803 KB | Adobe Acrobat PDF | View Details Download |