Cargando…
Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction
Amorphous molybdenum sulfide (MoS(x)) is a highly active noble-metal-free electrocatalysts for the hydrogen evolution reaction (HER). The MoS(x) was prepared by electrochemical deposition at room temperature. Low-cost precursors of Mo and S were adopted to synthesize thiomolybdates solution as the e...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6661953/ https://www.ncbi.nlm.nih.gov/pubmed/31384835 http://dx.doi.org/10.1186/s13065-019-0600-0 |
_version_ | 1783439557625118720 |
---|---|
author | Zhang, Lina Wu, Liangliu Li, Jing Lei, Jinglei |
author_facet | Zhang, Lina Wu, Liangliu Li, Jing Lei, Jinglei |
author_sort | Zhang, Lina |
collection | PubMed |
description | Amorphous molybdenum sulfide (MoS(x)) is a highly active noble-metal-free electrocatalysts for the hydrogen evolution reaction (HER). The MoS(x) was prepared by electrochemical deposition at room temperature. Low-cost precursors of Mo and S were adopted to synthesize thiomolybdates solution as the electrolyte. It replaces the expensive (NH)(2)MoS(4) and avoid the poison gas (H(2)S) to generate or employ. The (MoO(2)S(2))(2−), (MoOS(3))(2−) and (MoS(4))(2−) ions were determined by UV–VIS spectroscopy. The electrodeposition of MoS(x) was confirmed with XRD, XPS and SEM. The electrocatalyst activity was measured by polarization curve. The electrolyte contained (MoO(2)S(2))(2−) ion and (MoOS(3))(2−) ion electrodeposit the MoS(x) thin film displays a relatively high activity for HER with low overpotential of 211 mV at a current density of 10 mA cm(−2), a relatively high current density of 21.03 mA cm(−2) at η = 250 mV, a small Tafel slope of 55 mV dec(−1). The added sodium dodecyl sulfate (SDS) can efficient improve the stability of the MoS(x) film catalyst. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s13065-019-0600-0) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-6661953 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-66619532019-08-05 Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction Zhang, Lina Wu, Liangliu Li, Jing Lei, Jinglei BMC Chem Review Amorphous molybdenum sulfide (MoS(x)) is a highly active noble-metal-free electrocatalysts for the hydrogen evolution reaction (HER). The MoS(x) was prepared by electrochemical deposition at room temperature. Low-cost precursors of Mo and S were adopted to synthesize thiomolybdates solution as the electrolyte. It replaces the expensive (NH)(2)MoS(4) and avoid the poison gas (H(2)S) to generate or employ. The (MoO(2)S(2))(2−), (MoOS(3))(2−) and (MoS(4))(2−) ions were determined by UV–VIS spectroscopy. The electrodeposition of MoS(x) was confirmed with XRD, XPS and SEM. The electrocatalyst activity was measured by polarization curve. The electrolyte contained (MoO(2)S(2))(2−) ion and (MoOS(3))(2−) ion electrodeposit the MoS(x) thin film displays a relatively high activity for HER with low overpotential of 211 mV at a current density of 10 mA cm(−2), a relatively high current density of 21.03 mA cm(−2) at η = 250 mV, a small Tafel slope of 55 mV dec(−1). The added sodium dodecyl sulfate (SDS) can efficient improve the stability of the MoS(x) film catalyst. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s13065-019-0600-0) contains supplementary material, which is available to authorized users. Springer International Publishing 2019-07-10 /pmc/articles/PMC6661953/ /pubmed/31384835 http://dx.doi.org/10.1186/s13065-019-0600-0 Text en © The Author(s) 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Review Zhang, Lina Wu, Liangliu Li, Jing Lei, Jinglei Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction |
title | Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction |
title_full | Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction |
title_fullStr | Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction |
title_full_unstemmed | Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction |
title_short | Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction |
title_sort | electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6661953/ https://www.ncbi.nlm.nih.gov/pubmed/31384835 http://dx.doi.org/10.1186/s13065-019-0600-0 |
work_keys_str_mv | AT zhanglina electrodepositionofamorphousmolybdenumsulfidethinfilmforelectrochemicalhydrogenevolutionreaction AT wuliangliu electrodepositionofamorphousmolybdenumsulfidethinfilmforelectrochemicalhydrogenevolutionreaction AT lijing electrodepositionofamorphousmolybdenumsulfidethinfilmforelectrochemicalhydrogenevolutionreaction AT leijinglei electrodepositionofamorphousmolybdenumsulfidethinfilmforelectrochemicalhydrogenevolutionreaction |