New One-Step Thiol Functionalization Procedure for Ni by Self-Assembled Monolayers
Creators
- 1. DSCG, University of Modena and Reggio Emilia, Via Campi 183, Modena-41125
- 2. Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot-76100, Israel
- 3. cDepartment of Chemical Physics, The Weizmann Institute of Science, Rehovot-76100 Israel
- 4. Department of Chemical Physics, The Weizmann Institute of Science, Rehovot-76100 Israel
- 5. CNR - Istituto Officina dei Materiali, S.S. 14, km 163.5 in Area Science Park, I-34012 Trieste, Italy
- 6. CNR - Istituto Officina dei Materiali, S.S. 14, km 163.5 in Area Science Park, I-34012 Trieste, Italy and Dipartimento di Ingegneria "Enzo Ferrari", Università di Modena e Reggio Emilia, Via Vignolese 905, Modena-41125, Italy and Department of Physics, University of Johannesburg, PO Box 524, Auckland Park, 2006, South Africa
Description
This article reports on a facile and fast strategy for the self-assembled monolayer (SAM) functionalization of nickel surfaces, employing cyclic voltammetry (CV) cycling of a suitable tailored solution containing the species to be adsorbed. Results are presented for ultrathin films formed on Ni by 1-hexadecanethiol (C16), l-cysteine (l-cys), and the poly{methyl (2R)-3-(2,2′-bithiophen-4-ylsulfanyl)-2-[(tert-butoxycarbonyl)amino]propanoate} (PCT-L) thiophene-based chiral polymer. The effective formation of high-quality ultrathin organic films on the nickel was verified both electrochemically and by exploiting typical surface characterization techniques such as contact angle, ellipsometry, atomic force microscopy (AFM), polarization modulation–infrared reflection–absorption spectroscopy (PM–IRRAS), and X-ray photoelectron spectroscopy (XPS).
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