| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials: Functional Low-Dimensional (0D, 1D, 2D) Materials 2022
|
| Presentation Title |
Electrochemical Behaviors of Two-dimensional Materials
for Energy Applications |
| Author(s) |
Jun Lou |
| On-Site Speaker (Planned) |
Jun Lou |
| Abstract Scope |
In this talk, several aspects of the electrochemical behaviors of two-dimensional (2D) materials for energy applications will be discussed. We developed a local probe electrochemical measurement method and successfully applied it to the electro-catalytic activity measurement of various kinds of transition metal dichalcogenides. The catalytic activity and turnover frequencies of the 2H-MoS2 basal plane versus edge as well as the 1T’-MoS2 basal plane are identified by this measurement. The basal plane activity and turnover frequencies of transition metal dichalcogenides from different element groups has also been systematically studied. VB-VIA dichalcogenides have been identified as the preferred selection for non noble metal hydrogen evolution reaction (HER) catalysts. Next, we have demonstrated dinitrogen conversion to ammonia via electrochemical reduction with over 10% Faradic efficiency using 2D catalyst. Sulfur vacancy on MoS2-x basal plane mimicking the natural Mo-nitrogenase active site is modified by Co doping and exhibits superior dinitrogen to ammonia conversion activity. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Thin Films and Interfaces, |