Unilamellar Metallic MoS<inf>2</inf>/Graphene Superlattice for Efficient Sodium Storage and Hydrogen Evolution

Xiong, P; Ma, R; Sakai, N; Nurdiwijayanto, L; Sasaki, T

Unilamellar Metallic MoS<inf>2</inf>/Graphene Superlattice for Efficient Sodium Storage and Hydrogen Evolution

Xiong, P

Ma, R Sakai, N Nurdiwijayanto, L Sasaki, T

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Publication Type:: Journal Article
Citation:: ACS Energy Letters, 2018, 3 (4), pp. 997 - 1005
Issue Date:: 2018-04-13

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Field	Value	Language
dc.contributor.author	Xiong, P https://orcid.org/0000-0001-9483-6535	en_US
dc.contributor.author	Ma, R	en_US
dc.contributor.author	Sakai, N	en_US
dc.contributor.author	Nurdiwijayanto, L	en_US
dc.contributor.author	Sasaki, T	en_US
dc.date.issued	2018-04-13	en_US
dc.identifier.citation	ACS Energy Letters, 2018, 3 (4), pp. 997 - 1005	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131122
dc.description.abstract	© 2018 American Chemical Society. Unilamellar metallic nanosheets possess superiority for electrochemical energy storage and conversion applications compared to the few-layered bulk and semiconducting counterparts. Here, we report the utilization of unilamellar metallic 1T phase MoS2 nanosheets for efficient sodium storage and hydrogen evolution through a MoS2/graphene superlattice. The superlattice-like assembly composed of alternately restacked unilamellar MoS2 and modified reduced graphene oxide nanosheets was prepared by a facile solution-phase direct restacking method. As an anode for sodium storage, the MoS2/graphene superlattice anode exhibited an excellent rate capability of ∼240 mA h g-1 at 51.2 A g-1 and a stable reversible capacity of ∼380 mA h g-1 after 1000 cycles at 10 A g-1. In addition, a low onset potential of ∼88 mV and a small Tafel slope of 48.7 mV decade-1 were attained for the hydrogen evolution reaction. Our findings are important for further developing the potential of 2D nanosheets for energy storage and conversion.	en_US
dc.relation.ispartof	ACS Energy Letters	en_US
dc.relation.isbasedon	10.1021/acsenergylett.8b00110	en_US
dc.title	Unilamellar Metallic MoS<inf>2</inf>/Graphene Superlattice for Efficient Sodium Storage and Hydrogen Evolution	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	3	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0302 Inorganic Chemistry	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	3	en_US

Abstract:

© 2018 American Chemical Society. Unilamellar metallic nanosheets possess superiority for electrochemical energy storage and conversion applications compared to the few-layered bulk and semiconducting counterparts. Here, we report the utilization of unilamellar metallic 1T phase MoS2 nanosheets for efficient sodium storage and hydrogen evolution through a MoS2/graphene superlattice. The superlattice-like assembly composed of alternately restacked unilamellar MoS2 and modified reduced graphene oxide nanosheets was prepared by a facile solution-phase direct restacking method. As an anode for sodium storage, the MoS2/graphene superlattice anode exhibited an excellent rate capability of ∼240 mA h g-1 at 51.2 A g-1 and a stable reversible capacity of ∼380 mA h g-1 after 1000 cycles at 10 A g-1. In addition, a low onset potential of ∼88 mV and a small Tafel slope of 48.7 mV decade-1 were attained for the hydrogen evolution reaction. Our findings are important for further developing the potential of 2D nanosheets for energy storage and conversion.

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http://hdl.handle.net/10453/131122