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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...

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Autores principales: Zhang, Lina, Wu, Liangliu, Li, Jing, Lei, Jinglei
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
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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.
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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
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AT lijing electrodepositionofamorphousmolybdenumsulfidethinfilmforelectrochemicalhydrogenevolutionreaction
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