Design of highly anti-corrosive electroless plated Ni–P/modified halloysite nanotubes nanocomposite coating
Halloysite nanotubes (HNTs) and their modifications with either NH2 (HNT-NH2) or NH2/Polypyrrole (HNT–NH2–PPy) were electroless-deposited into the NiP matrix for the first time to form NiP/HNT, NiP/HNT-NH2 and NiP/HNT–NH2–PPy nanocomposite coatings. The as-prepared nanocomposite coatings were heat-t...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423009225 |
| _version_ | 1827920198554877952 |
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| author | Eman M. Fayyad Khouloud Jlassi Mostafa H. Sliem Fatma Nabhan Aboubakr M. Abdullah |
| author_facet | Eman M. Fayyad Khouloud Jlassi Mostafa H. Sliem Fatma Nabhan Aboubakr M. Abdullah |
| author_sort | Eman M. Fayyad |
| collection | DOAJ |
| description | Halloysite nanotubes (HNTs) and their modifications with either NH2 (HNT-NH2) or NH2/Polypyrrole (HNT–NH2–PPy) were electroless-deposited into the NiP matrix for the first time to form NiP/HNT, NiP/HNT-NH2 and NiP/HNT–NH2–PPy nanocomposite coatings. The as-prepared nanocomposite coatings were heat-treated at 400 °C for 1 h. The transformation in microstructure, nanoindentation, Vicker's micro-hardness, surface morphology, and anti-corrosive properties of all prepared composite coatings were compared to the HNT-free (NiP) coating. Incorporating HNTs in the NiP coating made an appreciable enhancement in the hardness and corrosion resistance. Using the electrochemical impedance spectroscopy technique (EIS), the NiP/HNT-NH2 and NiP/HNT–NH2–PPy coatings showed more significant levels of enhancement in anticorrosion performance, offering about 16.5% and 25.4%, respectively, an increase in the inhibition efficiency of unmodified one (NiP/HNT), reached to 73 and 82%. Moreover, the modified HNT coatings revealed slightly high levels of betterment in microhardness, about 9% and 5.4% for HNT modification with NH2 and NH2-PPy, respectively. In addition, the heat treatment extra improved the hardness and the corrosion resistance of all HNTs nanocomposite coatings compared to HNT-free coating. Furthermore, the heat-treated NiP/HNT has the highest protection efficiency reached to about 95%, based on the polarization measurements. This momentous improvement in the hardness and electrochemical properties reflects the effect of adding the pristine and the modified HNTs into the NiP matrix, resulting in the development of high-performance NiP/HNT-NH2 and NiP/HNT–NH2–PPy composite coatings facilitating their use in various industries. |
| first_indexed | 2024-03-13T04:09:12Z |
| format | Article |
| id | doaj.art-40e70602915842b28ad1e88169e6e0f4 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:09:12Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-40e70602915842b28ad1e88169e6e0f42023-06-21T06:57:13ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012480148034Design of highly anti-corrosive electroless plated Ni–P/modified halloysite nanotubes nanocomposite coatingEman M. Fayyad0Khouloud Jlassi1Mostafa H. Sliem2Fatma Nabhan3Aboubakr M. Abdullah4Corresponding author.; Center for Advanced Materials, Qatar University, Doha 2713, QatarCenter for Advanced Materials, Qatar University, Doha 2713, QatarCenter for Advanced Materials, Qatar University, Doha 2713, QatarCenter for Advanced Materials, Qatar University, Doha 2713, QatarCorresponding author.; Center for Advanced Materials, Qatar University, Doha 2713, QatarHalloysite nanotubes (HNTs) and their modifications with either NH2 (HNT-NH2) or NH2/Polypyrrole (HNT–NH2–PPy) were electroless-deposited into the NiP matrix for the first time to form NiP/HNT, NiP/HNT-NH2 and NiP/HNT–NH2–PPy nanocomposite coatings. The as-prepared nanocomposite coatings were heat-treated at 400 °C for 1 h. The transformation in microstructure, nanoindentation, Vicker's micro-hardness, surface morphology, and anti-corrosive properties of all prepared composite coatings were compared to the HNT-free (NiP) coating. Incorporating HNTs in the NiP coating made an appreciable enhancement in the hardness and corrosion resistance. Using the electrochemical impedance spectroscopy technique (EIS), the NiP/HNT-NH2 and NiP/HNT–NH2–PPy coatings showed more significant levels of enhancement in anticorrosion performance, offering about 16.5% and 25.4%, respectively, an increase in the inhibition efficiency of unmodified one (NiP/HNT), reached to 73 and 82%. Moreover, the modified HNT coatings revealed slightly high levels of betterment in microhardness, about 9% and 5.4% for HNT modification with NH2 and NH2-PPy, respectively. In addition, the heat treatment extra improved the hardness and the corrosion resistance of all HNTs nanocomposite coatings compared to HNT-free coating. Furthermore, the heat-treated NiP/HNT has the highest protection efficiency reached to about 95%, based on the polarization measurements. This momentous improvement in the hardness and electrochemical properties reflects the effect of adding the pristine and the modified HNTs into the NiP matrix, resulting in the development of high-performance NiP/HNT-NH2 and NiP/HNT–NH2–PPy composite coatings facilitating their use in various industries.http://www.sciencedirect.com/science/article/pii/S2238785423009225Electroless NiPHNT reinforcementPolypyrrole (PPy)Composite coatingCorrosion protection |
| spellingShingle | Eman M. Fayyad Khouloud Jlassi Mostafa H. Sliem Fatma Nabhan Aboubakr M. Abdullah Design of highly anti-corrosive electroless plated Ni–P/modified halloysite nanotubes nanocomposite coating Journal of Materials Research and Technology Electroless NiP HNT reinforcement Polypyrrole (PPy) Composite coating Corrosion protection |
| title | Design of highly anti-corrosive electroless plated Ni–P/modified halloysite nanotubes nanocomposite coating |
| title_full | Design of highly anti-corrosive electroless plated Ni–P/modified halloysite nanotubes nanocomposite coating |
| title_fullStr | Design of highly anti-corrosive electroless plated Ni–P/modified halloysite nanotubes nanocomposite coating |
| title_full_unstemmed | Design of highly anti-corrosive electroless plated Ni–P/modified halloysite nanotubes nanocomposite coating |
| title_short | Design of highly anti-corrosive electroless plated Ni–P/modified halloysite nanotubes nanocomposite coating |
| title_sort | design of highly anti corrosive electroless plated ni p modified halloysite nanotubes nanocomposite coating |
| topic | Electroless NiP HNT reinforcement Polypyrrole (PPy) Composite coating Corrosion protection |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423009225 |
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