Bi-axial grown amorphous MoS(x) bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution

Amorphous molybdenum sulfide (MoS(x)) is covalently anchored to reduced graphene oxide (r-GO) via a simple one-pot reaction, thereby inducing the reduction of GO and simultaneous doping of heteroatoms on the GO. The oxygen atoms form a bridged between MoS(x) and GO and play a crucial role in the fin...

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Autores principales: Lee, Cheol-Ho, Yun, Jin-Mun, Lee, Sungho, Jo, Seong Mu, Eom, KwangSup, Lee, Doh C., Joh, Han-Ik, Fuller, Thomas F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5247739/
https://www.ncbi.nlm.nih.gov/pubmed/28106126
http://dx.doi.org/10.1038/srep41190
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author Lee, Cheol-Ho
Yun, Jin-Mun
Lee, Sungho
Jo, Seong Mu
Eom, KwangSup
Lee, Doh C.
Joh, Han-Ik
Fuller, Thomas F.
author_facet Lee, Cheol-Ho
Yun, Jin-Mun
Lee, Sungho
Jo, Seong Mu
Eom, KwangSup
Lee, Doh C.
Joh, Han-Ik
Fuller, Thomas F.
author_sort Lee, Cheol-Ho
collection PubMed
description Amorphous molybdenum sulfide (MoS(x)) is covalently anchored to reduced graphene oxide (r-GO) via a simple one-pot reaction, thereby inducing the reduction of GO and simultaneous doping of heteroatoms on the GO. The oxygen atoms form a bridged between MoS(x) and GO and play a crucial role in the fine dispersion of the MoS(x) particles, control of planar MoS(x) growth, and increase of exposed active sulfur sites. This bridging leads to highly efficient (−157 mV overpotential and 41 mV/decade Tafel slope) and stable (95% versus initial activity after 1000 cycles) electrocatalyst for hydrogen evolution.
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spelling pubmed-52477392017-01-23 Bi-axial grown amorphous MoS(x) bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution Lee, Cheol-Ho Yun, Jin-Mun Lee, Sungho Jo, Seong Mu Eom, KwangSup Lee, Doh C. Joh, Han-Ik Fuller, Thomas F. Sci Rep Article Amorphous molybdenum sulfide (MoS(x)) is covalently anchored to reduced graphene oxide (r-GO) via a simple one-pot reaction, thereby inducing the reduction of GO and simultaneous doping of heteroatoms on the GO. The oxygen atoms form a bridged between MoS(x) and GO and play a crucial role in the fine dispersion of the MoS(x) particles, control of planar MoS(x) growth, and increase of exposed active sulfur sites. This bridging leads to highly efficient (−157 mV overpotential and 41 mV/decade Tafel slope) and stable (95% versus initial activity after 1000 cycles) electrocatalyst for hydrogen evolution. Nature Publishing Group 2017-01-20 /pmc/articles/PMC5247739/ /pubmed/28106126 http://dx.doi.org/10.1038/srep41190 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Lee, Cheol-Ho
Yun, Jin-Mun
Lee, Sungho
Jo, Seong Mu
Eom, KwangSup
Lee, Doh C.
Joh, Han-Ik
Fuller, Thomas F.
Bi-axial grown amorphous MoS(x) bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution
title Bi-axial grown amorphous MoS(x) bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution
title_full Bi-axial grown amorphous MoS(x) bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution
title_fullStr Bi-axial grown amorphous MoS(x) bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution
title_full_unstemmed Bi-axial grown amorphous MoS(x) bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution
title_short Bi-axial grown amorphous MoS(x) bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution
title_sort bi-axial grown amorphous mos(x) bridged with oxygen on r-go as a superior stable and efficient nonprecious catalyst for hydrogen evolution
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5247739/
https://www.ncbi.nlm.nih.gov/pubmed/28106126
http://dx.doi.org/10.1038/srep41190
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