Journal Article Epublish 5 citations
PubMed: 37258634 DOI: 10.1038/s41598-023-35869-z
Femtosecond laser-induced nano- and microstructuring of Cu electrodes for CO electroreduction in acetonitrile medium.
Sci Rep 13(1):8837
Authors: Iaroslav Gnilitskyi, Stefano Bellucci, Andrea Giacomo Marrani, Mariana Shepida, Artur Mazur, Galyna Zozulya, Vasyl Kordan, Volodymyr Babizhetskyy, Bouchta Sahraoui, Orest Kuntyi
Affiliations
- Lviv Polytechnic National University, 12 Bandery Str. Lviv, 79013, Ukraine.
- "NoviNano Lab" LLC, 5 Pasternaka, Lviv, 79000, Ukraine.
- INFN-Laboratori Nazionali di Frascati, Via E. Fermi 54, 00044, Frascati, Italy.
- INFN-Laboratori Nazionali di Frascati, Via E. Fermi 54, 00044, Frascati, Italy.
- Dipartimento di Chimica, Università di Roma "La Sapienza", p.le A. Moro 5, 00185, Rome, Italy.
- Lviv Polytechnic National University, 12 Bandery Str. Lviv, 79013, Ukraine.
- Department of Inorganic Chemistry, Ivan Franko National University of Lviv, 6 Kyryla i Mefodiya Str. Lviv, 79005, Ukraine.
- University of Angers, Photonics Laboratory of Angers LPhiA, SFR MATRIX, 2 Bd Lavoisier, 49045, Angers, France.
Abstract
The dependency of CO reduction rate in acetonitrile-BuNClO solution on cathodes, which were modified by laser induction of a copper surface, was studied. The topography of laser-induced periodic surface structures (LIPSS) → grooves → spikes was successively formed by a certain number of pulses. It was proved that for a higher number of laser pulses, the surface area of the copper cathode increases and preferred platy orientation of the copper surface on [022] crystallografic direction and larger fluence values increase. At the same time, the content of copper (I) oxide on the surface of the copper cathode increases. Also, the tendency to larger fluency values is observed. It promotes the increase of cathodic current density for CO reduction, which reaches values of 14 mA cm for samples with spikes surface structures at E = - 3.0 V upon a stable process.
MeSH
Electrodes, Pulse, Lasers