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Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation

H. A. Burch, M. Isaacs, K. Wilson, R. E. Palmer, N. V. Rees, Richard Palmer Orcid Logo

RSC Advances, Volume: 6, Issue: 32, Pages: 26689 - 26695

Swansea University Author: Richard Palmer Orcid Logo

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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...

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Published in: RSC Advances
ISSN: 2046-2069
Published: Royal Society of Chemistry (RSC) 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa49228
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spelling 2020-10-19T14:23:30.4481704 v2 49228 2019-03-18 Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation 6ae369618efc7424d9774377536ea519 0000-0001-8728-8083 Richard Palmer Richard Palmer true false 2019-03-18 MECH 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. Journal Article RSC Advances 6 32 26689 26695 Royal Society of Chemistry (RSC) 2046-2069 31 12 2016 2016-12-31 10.1039/c6ra03326a COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2020-10-19T14:23:30.4481704 2019-03-18T14:28:07.8962047 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering H. A. Burch 1 M. Isaacs 2 K. Wilson 3 R. E. Palmer 4 N. V. Rees 5 Richard Palmer 0000-0001-8728-8083 6 49228__18455__8f65f0592679472c988b76c34e18e1e3.pdf 49228.VOR.c6ra03326a.pdf 2020-10-19T14:08:18.2009535 Output 727054 application/pdf Version of Record true Distributed under the terms of a Creative Commons Attribution 4.0 CC-BY License. true eng https://creativecommons.org/licenses/by/4.0/
title Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation
spellingShingle Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation
Richard Palmer
title_short Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation
title_full Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation
title_fullStr Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation
title_full_unstemmed Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation
title_sort Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation
author_id_str_mv 6ae369618efc7424d9774377536ea519
author_id_fullname_str_mv 6ae369618efc7424d9774377536ea519_***_Richard Palmer
author Richard Palmer
author2 H. A. Burch
M. Isaacs
K. Wilson
R. E. Palmer
N. V. Rees
Richard Palmer
format Journal article
container_title RSC Advances
container_volume 6
container_issue 32
container_start_page 26689
publishDate 2016
institution Swansea University
issn 2046-2069
doi_str_mv 10.1039/c6ra03326a
publisher Royal Society of Chemistry (RSC)
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description 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.
published_date 2016-12-31T04:00:03Z
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score 11.037603

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