Next Article in Journal
Characterization of a Toothpaste Containing Bioactive Hydroxyapatites and In Vitro Evaluation of Its Efficacy to Remineralize Enamel and to Occlude Dentinal Tubules
Previous Article in Journal
The Possibility of Applying Acoustic Emission and Dynamometric Methods for Monitoring the Turning Process
Open AccessArticle

Experimental and Theoretical Study of the Covalent Grafting of Triazole Layer onto the Gold Surface

1
Department of Chemistry, University of Prishtina “Hasan Prishtina”, FNMS, str. “Nëna Tereze” nr. 5, 10000 Prishtina, Kosovo
2
Department of Chemistry, Faculty of Science and Technology, Umeå University, SE 90187 Umeå, Sweden
3
Materials Science—Nanochemistry Research Group, NanoAlb—Unit of Albanian Nanoscience and Nanotechnology, 1000 Tirana, Albania
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(13), 2927; https://doi.org/10.3390/ma13132927
Received: 15 June 2020 / Revised: 25 June 2020 / Accepted: 26 June 2020 / Published: 30 June 2020
(This article belongs to the Section Materials Chemistry)
Finding novel strategies for surface modification is of great interest in electrochemistry and material sciences. In this study, we present a strategy for modification of a gold electrode through covalent attachment of triazole (TA) groups. Triazole groups were electrochemically grafted at the surface of the electrode by a reduction of in situ generated triazolediazonium cations. The resulting grafted surface was characterized before and after the functionalization process by different electrochemical methods (cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS)) confirming the presence of the grafted layer. The grafting of TA on the electrode surface was confirmed using analysis of surface morphology (by atomic force microscopy), the thickness of the grafted layer (by ellipsometry) and its composition (by X-ray photoelectron spectroscopy). Density functional theory (DFT) calculations imply that the grafted triazole offers a stronger platform than the grafted aryl layers. View Full-Text
Keywords: 3-amino-1,2,4-triazole; diazonium salts; gold electrode; impedance spectroscopy; cyclic voltammetry; surface modification 3-amino-1,2,4-triazole; diazonium salts; gold electrode; impedance spectroscopy; cyclic voltammetry; surface modification
Show Figures

Chart 1

MDPI and ACS Style

Orqusha, N.; Phal, S.; Berisha, A.; Tesfalidet, S. Experimental and Theoretical Study of the Covalent Grafting of Triazole Layer onto the Gold Surface. Materials 2020, 13, 2927.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop