Improving pitting corrosion resistance of the commercial titanium through graphene oxide-titanium oxide composite
Titanium oxide has been commonly used for wide range of applications due to excellent corrosion resistance. This study presents the impact of graphene oxide (GO) addition to titanium oxide as coating materials during titanium anodization process on the corrosion behaviour. The GO was prepared by ele...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-06-01
|
| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402101392X |
| _version_ | 1819145837455867904 |
|---|---|
| author | Talal A. Aljohani Muntathir I. Albeladi Basheer A. Alshammari |
| author_facet | Talal A. Aljohani Muntathir I. Albeladi Basheer A. Alshammari |
| author_sort | Talal A. Aljohani |
| collection | DOAJ |
| description | Titanium oxide has been commonly used for wide range of applications due to excellent corrosion resistance. This study presents the impact of graphene oxide (GO) addition to titanium oxide as coating materials during titanium anodization process on the corrosion behaviour. The GO was prepared by electrochemical exfoliation using low voltage mode in a sodium sulphate electrolyte, which is easier and more environmentally friendly compared to the chemical approach. Raman and scanning electron microscope were used to examine the success of the exfoliation process. The surface morphologies and potentiodynamic polarization results indicate that the addition of GO significantly inhibit the pitting corrosion and stabilize passivation current densities over wide ranges of anodic potentials. The untreated titanium, however, noticeably displayed fluctuation of anodic current densities, confirming the presence of pitting corrosion. The results obtained by electrochemical impedance spectroscopy (EIS) also confirm that the addition of GO enhanced corrosion protection even at higher frequency ranges. The cyclic polarization scan results show a positive shift in the re-passivation potential Erep after the addition of GO. This work emphasizes that the addition of GO during anodization of titanium not only protect its surface from pitting corrosion but also provide a strong passive layer. |
| first_indexed | 2024-12-22T13:04:22Z |
| format | Article |
| id | doaj.art-4053cbaee09e4bffa2cd216ca941015e |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-12-22T13:04:22Z |
| publishDate | 2021-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-4053cbaee09e4bffa2cd216ca941015e2022-12-21T18:24:55ZengElsevierHeliyon2405-84402021-06-0176e07289Improving pitting corrosion resistance of the commercial titanium through graphene oxide-titanium oxide compositeTalal A. Aljohani0Muntathir I. Albeladi1Basheer A. Alshammari2National Centre for Chemical Technologies, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia; Corresponding author.National Centre for Chemical Technologies, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi ArabiaMaterials Science Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi ArabiaTitanium oxide has been commonly used for wide range of applications due to excellent corrosion resistance. This study presents the impact of graphene oxide (GO) addition to titanium oxide as coating materials during titanium anodization process on the corrosion behaviour. The GO was prepared by electrochemical exfoliation using low voltage mode in a sodium sulphate electrolyte, which is easier and more environmentally friendly compared to the chemical approach. Raman and scanning electron microscope were used to examine the success of the exfoliation process. The surface morphologies and potentiodynamic polarization results indicate that the addition of GO significantly inhibit the pitting corrosion and stabilize passivation current densities over wide ranges of anodic potentials. The untreated titanium, however, noticeably displayed fluctuation of anodic current densities, confirming the presence of pitting corrosion. The results obtained by electrochemical impedance spectroscopy (EIS) also confirm that the addition of GO enhanced corrosion protection even at higher frequency ranges. The cyclic polarization scan results show a positive shift in the re-passivation potential Erep after the addition of GO. This work emphasizes that the addition of GO during anodization of titanium not only protect its surface from pitting corrosion but also provide a strong passive layer.http://www.sciencedirect.com/science/article/pii/S240584402101392XElectrochemical oxidationElectrochemical graphene oxide exfoliationPolarization resistanceNanoparticlesElectrochemical impedance spectroscopy (EIS) |
| spellingShingle | Talal A. Aljohani Muntathir I. Albeladi Basheer A. Alshammari Improving pitting corrosion resistance of the commercial titanium through graphene oxide-titanium oxide composite Heliyon Electrochemical oxidation Electrochemical graphene oxide exfoliation Polarization resistance Nanoparticles Electrochemical impedance spectroscopy (EIS) |
| title | Improving pitting corrosion resistance of the commercial titanium through graphene oxide-titanium oxide composite |
| title_full | Improving pitting corrosion resistance of the commercial titanium through graphene oxide-titanium oxide composite |
| title_fullStr | Improving pitting corrosion resistance of the commercial titanium through graphene oxide-titanium oxide composite |
| title_full_unstemmed | Improving pitting corrosion resistance of the commercial titanium through graphene oxide-titanium oxide composite |
| title_short | Improving pitting corrosion resistance of the commercial titanium through graphene oxide-titanium oxide composite |
| title_sort | improving pitting corrosion resistance of the commercial titanium through graphene oxide titanium oxide composite |
| topic | Electrochemical oxidation Electrochemical graphene oxide exfoliation Polarization resistance Nanoparticles Electrochemical impedance spectroscopy (EIS) |
| url | http://www.sciencedirect.com/science/article/pii/S240584402101392X |
| work_keys_str_mv | AT talalaaljohani improvingpittingcorrosionresistanceofthecommercialtitaniumthroughgrapheneoxidetitaniumoxidecomposite AT muntathirialbeladi improvingpittingcorrosionresistanceofthecommercialtitaniumthroughgrapheneoxidetitaniumoxidecomposite AT basheeraalshammari improvingpittingcorrosionresistanceofthecommercialtitaniumthroughgrapheneoxidetitaniumoxidecomposite |