Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/73764
| Title: | Tunable active edge sites in PtSe2 films towards hydrogen evolution reaction | Authors: | Lin, S Liu, Y Hu, Z Lu, W Mak, CH Zeng, L Zhao, J Li, Y Yan, F Tsang, YH Zhang, X Lau, SP |
Issue Date: | Dec-2017 | Source: | Nano energy, Dec. 2017, v. 42, p. 26-33 | Abstract: | Layered transition-metal dichalcogenides (TMDCs) have received great interest due to their potential applications in many fields including electronics, optoelectronics, electrochemical hydrogen production and so on. Recent research effort on the development of effective hydrogen evolution reaction (HER) is to modulate the active edge sites through controlling surface structure at the atomic scale. Here we firstly demonstrate a facile strategy to synthesize large-area and edge-rich platinum diselenide (PtSe2) via selenization of Pt films by magnetron sputtering physical deposition method. The edge site density of the PtSe2 can be effectively controlled by tuning the thickness of Pt films. The HER activity of the PtSe2 can be enhanced significantly as the active edge site density increases. The maximum cathodic current density of 227 mA/cm2 can be obtained through increasing the edge density, which well agrees with the density functional theory calculations. Our work provides a fundamental insight on the effect of active edge site density towards HER. | Keywords: | Active sites Hydrogen evolution reaction Layered materials PtSe2 |
Publisher: | Elsevier | Journal: | Nano energy | ISSN: | 2211-2855 | EISSN: | 2211-3282 | DOI: | 10.1016/j.nanoen.2017.10.038 | Rights: | © 2017 Elsevier Ltd. All rights reserved. © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Lin, S., Liu, Y., Hu, Z., Lu, W., Mak, C. H., Zeng, L., ... & Lau, S. P. (2017). Tunable active edge sites in PtSe2 films towards hydrogen evolution reaction. Nano Energy, 42, 26-33 is available at https://doi.org/10.1016/j.nanoen.2017.10.038. |
| Appears in Collections: | Journal/Magazine Article |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Lin_Tunable_Active_Edge.pdf | Pre-Published version | 1.54 MB | Adobe PDF | View/Open |
Access
View full-text via PolyU eLinks 
Page views
123
Last Week
0
0
Last month
Citations as of Sep 24, 2023
Downloads
77
Citations as of Sep 24, 2023
SCOPUSTM
Citations
89
Last Week
1
1
Last month
Citations as of Sep 21, 2023
WEB OF SCIENCETM
Citations
88
Last Week
0
0
Last month
Citations as of Sep 21, 2023
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.