Adsorption of the prototypical organic corrosion inhibitor benzotriazole on the Cu(100) surface

Journal article


Turano, M., Walker, M., Grillo, F., Gattinoni, C., Hunt, G., Kirkman, P., Richardson, N.V., Baddeley, C.J. and Costantini, G. (2022). Adsorption of the prototypical organic corrosion inhibitor benzotriazole on the Cu(100) surface. Corrosion Science. 207, p. 110589. https://doi.org/10.1016/j.corsci.2022.110589
AuthorsTurano, M., Walker, M., Grillo, F., Gattinoni, C., Hunt, G., Kirkman, P., Richardson, N.V., Baddeley, C.J. and Costantini, G.
Abstract

The interaction of benzotriazole (BTAH) with Cu(100) has been studied as a function of BTAH exposure in a joint experimental and theoretical effort. Scanning tunnelling microscopy (STM), X-ray photoelectron spectroscopy (XPS), high resolution electron energy loss spectroscopy (HREELS) and density functional theory (DFT) calculations have been combined to elucidate the structural and chemical characteristics of this system. BTAH is found to deprotonate upon adsorption on the copper surface and to adopt an orientation that depends on the molecular coverage. Benzotriazolate (BTA) species initially lie with their planes parallel to the substrate but, at a higher molecular coverage, a transition occurs to an upright adsorption geometry. Upon increasing the BTAH exposure, different phases of vertically aligned BTAs are observed with increasing molecular densities until a final, self-limiting monolayer is developed. Both theory and experiment agree in identifying CuBTA and Cu(BTA)2 metal-organic complexes as the fundamental building blocks of this monolayer. This work shows several similarities with the results of previous studies on the interaction of benzotriazole with other low Miller index copper surfaces, thereby ideally completing and concluding them. The overall emerging picture constitutes an important starting point for understanding the mechanism for protection of copper from corrosion.

KeywordsCorrosion inhibitors Copper STM XPS HREELS DFT
Year2022
JournalCorrosion Science
Journal citation207, p. 110589
PublisherElsevier
ISSN0010-938X
Digital Object Identifier (DOI)https://doi.org/10.1016/j.corsci.2022.110589
Web address (URL)https://www.sciencedirect.com/science/article/pii/S0010938X22005078
Publication dates
Print12 Aug 2022
Publication process dates
Accepted10 Aug 2022
Deposited15 Sep 2022
Publisher's version
License
File Access Level
Open
Permalink -

https://openresearch.lsbu.ac.uk/item/91xw5

Download files


Publisher's version
1-s2.0-S0010938X22005078-main.pdf
License: CC BY 4.0
File access level: Open

  • 1
    total views
  • 1
    total downloads
  • 0
    views this month
  • 0
    downloads this month

Export as

Related outputs

Prediction of a strong polarizing field in thin film paraelectrics
Gattinoni, C. and Spaldin, N. (2022). Prediction of a strong polarizing field in thin film paraelectrics. Physical Review Research. 4, p. L032020. https://doi.org/10.1103/PhysRevResearch.4.L032020
Copper adatoms mediated adsorption of benzotriazole on a gold substrate
Grillo, F, Gattinoni, C., Larrea, C. R., Lacovig, P. and Richardson, N. V. (2022). Copper adatoms mediated adsorption of benzotriazole on a gold substrate. Applied Surface Science. 600, p. 154087. https://doi.org/10.1016/j.apsusc.2022.154087
Magnetoelectric Effect in Hydrogen Harvesting: Magnetic Field as a Trigger of Catalytic Reactions (Adv. Mater. 19/2022)
Kim, D., Efe, I., Torlakcik, H., Terzopoulou, A., Veciana, A., Siringil, E., Mushtaq, F., Franco, C., Arx, D., Sevim, S., Puigmartí‐Luis, J., Nelson, B., Spaldin, N.A., Gattinoni, C., Chen, X.‐Z. and Pané, S. (2022). Magnetoelectric Effect in Hydrogen Harvesting: Magnetic Field as a Trigger of Catalytic Reactions (Adv. Mater. 19/2022). Advanced Materials. 34 (19), p. 2270139. https://doi.org/10.1002/adma.202270139
Understanding the Interaction of Organic Corrosion Inhibitors with Copper at the Molecular Scale: Benzotriazole on Cu(110)
Turano, M., Walker, M., Grillo, F., Gattinoni, C., Edmondson, J., Adesida, O., Hunt, G., Kirkman, P., Richardson, N.V., Baddeley, C.J., Michaelides, A. and Costantini, G. (2021). Understanding the Interaction of Organic Corrosion Inhibitors with Copper at the Molecular Scale: Benzotriazole on Cu(110). Applied Surface Science. https://doi.org/10.1016/j.apsusc.2021.151206