Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
|
EL
| URI | http://purl.tuc.gr/dl/dias/654154E8-8465-439C-8FD3-C634433D2DA7 | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.rechem.2023.101216 | - |
| Αναγνωριστικό | https://www.sciencedirect.com/science/article/pii/S2211715623004551 | - |
| Γλώσσα | en | - |
| Μέγεθος | 8 pages | en |
| Τίτλος | One-step electrodeposition of NiS heterostructures on nickel foam electrodes for hydrogen evolution reaction: on the impact of thiourea content | en |
| Δημιουργός | Poimenidis Ioannis | en |
| Δημιουργός | Ποιμενιδης Ιωαννης | el |
| Δημιουργός | Lykaki Maria | en |
| Δημιουργός | Λυκακη Μαρια | el |
| Δημιουργός | Papakosta Nikandra | en |
| Δημιουργός | Loukakos Panagiotis | en |
| Δημιουργός | Kallithrakas-Kontos Nikolaos | en |
| Δημιουργός | Καλλιθρακας-Κοντος Νικολαος | el |
| Δημιουργός | Konsolakis Michail | en |
| Δημιουργός | Κονσολακης Μιχαηλ | el |
| Εκδότης | Elsevier | en |
| Περιγραφή | PL, NP acknowledge financial support from the European Union's Horizon 2020 research and innovation program under grant agreement no 871124 Laserlab-Europe. The authors would like to acknowledge the HELLAS-CH national infrastructure (MIS 5002735) implemented under Action for Strengthening Research and Innovation Infrastructures, funded by the Operational Programme Competitiveness, Entrepreneurship, and Innovation (NSRF 2014-2020) and co -financed by Greece and the European Union (European Regional Development Fund). | en |
| Περίληψη | Herein, we report on the one-step growth of nickel sulfide (NiS) heterostructures on nickel foam (NF) substrate via a facile electrodeposition method, employing Ni(NO3)2·6H2O and CH4N2S as Ni and S precursors, respectively. For the first time, a systematic study was carried out on the impact of the Ni/S molar ratio on the electrochemical performance of as-prepared electrodes for water splitting. The optimum performance was obtained for a Ni:S ratio equal to 2:1, whereas lower or higher ratios resulted in much inferior performance. The NiS@NF electrode with a Ni:S ratio of 2:1 exhibited the lowest overpotentials |η10| = 136 mV, |η100| = 209 mV, extremely low Tafel slope (60 mV dec-1), and very high double layer capacitance value (2.78 mF cm−2). Field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), and X-ray photoelectron spectroscopy (XPS) revealed the formation of a coral-like nanoarchitecture, resulting in enhanced HER activity. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by-nc-nd/4.0/ | en |
| Ημερομηνία | 2025-05-23 | - |
| Ημερομηνία Δημοσίευσης | 2023 | - |
| Θεματική Κατηγορία | Alkaline electrolysis | en |
| Θεματική Κατηγορία | HER reaction | en |
| Θεματική Κατηγορία | Electrodeposition on Ni foam | en |
| Θεματική Κατηγορία | Nickel sulfide heterostructures | en |
| Θεματική Κατηγορία | Thiourea | en |
| Βιβλιογραφική Αναφορά | I. A. Poimenidis, M. Lykaki, N. Papakosta, P. A. Loukakos, N. Kallithrakas Kontos, and M. Konsolakis, “One-step electrodeposition of NiS heterostructures on nickel foam electrodes for hydrogen evolution reaction: on the impact of thiourea content,” Results Chem., vol. 6, Dec. 2023, doi: 10.1016/j.rechem.2023.101216. | en |
Copyright © DIAS 2013
