Journal article 995 views 155 downloads
Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation
RSC Advances, Volume: 6, Issue: 32, Pages: 26689 - 26695
Swansea University Author:
Richard Palmer
-
PDF | Version of Record
Distributed under the terms of a Creative Commons Attribution 4.0 CC-BY License.
Download (710.01KB)
DOI (Published version): 10.1039/c6ra03326a
Abstract
The performance of MoS2 as a hydrogen evolution catalyst is diminished by exposure to air. We demonstrate a solution phase technique to resulfidate MoSxO2−x using Na2S2O3. The success of the method was judged by performance as a H+ reduction catalyst. Following sulfidation samples displayed a favour...
| Published in: | RSC Advances |
|---|---|
| ISSN: | 2046-2069 |
| Published: |
Royal Society of Chemistry (RSC)
2016
|
| Online Access: |
Check full text
|
| URI: | https://cronfa.swan.ac.uk/Record/cronfa49228 |
| Abstract: |
The performance of MoS2 as a hydrogen evolution catalyst is diminished by exposure to air. We demonstrate a solution phase technique to resulfidate MoSxO2−x using Na2S2O3. The success of the method was judged by performance as a H+ reduction catalyst. Following sulfidation samples displayed a favourable decrease in both onset potential and Tafel slope, with the best decreasing from −0.23 V to −0.18 V (vs. SHE), and 282 mV dec−1 to 87 mV dec−1 respectively. Ageing studies indicate that this method may be used to recycle the MoS2 repeatedly without losing catalytic performance, although repeated sulfidation did result in homogenisation of the nanostructure. |
|---|---|
| College: |
Faculty of Science and Engineering |
| Issue: |
32 |
| Start Page: |
26689 |
| End Page: |
26695 |