Pure and stable metallic phase molybdenum disulfide nanosheets for hydrogen evolution reaction

Xiumei Geng (), Weiwei Sun, Wei Wu, Benjamin Chen, Alaa Al-Hilo, Mourad Benamara, Hongli Zhu, Fumiya Watanabe, Jingbiao Cui () and Tar-pin Chen ()
Additional contact information
Xiumei Geng: University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, USA
Weiwei Sun: University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, USA
Wei Wu: University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, USA
Benjamin Chen: University at Buffalo
Alaa Al-Hilo: University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, USA
Mourad Benamara: Institute for Nanoscale Materials Science and Engineering, University of Arkansas
Hongli Zhu: Northeastern University
Fumiya Watanabe: University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, USA
Jingbiao Cui: University of Memphis, Memphis, Tennessee 38152, USA
Tar-pin Chen: University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, USA

Nature Communications, 2016, vol. 7, issue 1, 1-7

Abstract: Abstract Metallic-phase MoS2 (M-MoS2) is metastable and does not exist in nature. Pure and stable M-MoS2 has not been previously prepared by chemical synthesis, to the best of our knowledge. Here we report a hydrothermal process for synthesizing stable two-dimensional M-MoS2 nanosheets in water. The metal–metal Raman stretching mode at 146 cm−1 in the M-MoS2 structure, as predicted by theoretical calculations, is experimentally observed. The stability of the M-MoS2 is associated with the adsorption of a monolayer of water molecules on both sides of the nanosheets, which reduce restacking and prevent aggregation in water. The obtained M-MoS2 exhibits excellent stability in water and superior activity for the hydrogen evolution reaction, with a current density of 10 mA cm−2 at a low potential of −175 mV and a Tafel slope of 41 mV per decade.

Date: 2016
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/ncomms10672 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10672

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms10672

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().