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Synthesis and electrochemical sodium-storage of few-layered MoS 2/nitrogen, phosphorus-codoped graphene

Synthesis and electrochemical sodium-storage of few-layered MoS 2/nitrogen, phosphorus-codoped graphene

Limei Xu, Lin Ma, Wenyan Li, Xinxin Yang, Yan Ling

Nanotechnology. 2018 Jul 27;29(30):305401.

PMID: 29742068

Abstract:

Few-layered molybdenum disulfide/nitrogen, phosphorus co-doped graphene composites are synthesized by a quaternary phosphonium salt-assisted hydrothermal and annealing procedure. The prepared composites are analyzed by x-ray powder diffraction, x-ray photoelectron spectra, scanning electronic microscopy, transmission electronic microscopy, Raman spectra and nitrogen adsorption and desorption. Experimental results indicate that the MoS2 nanosheets are of few-layered and defective structures and are well anchored on flexible conductive nitrogen, phosphorus co-doped graphene to constitute mesoporous composites with increased surface areas. Benefiting from the structural merits as well as surface-dominated pseudocapacitive contribution, the composite electrode presents a high electrochemical sodium storage capacity that arrives at 542 mAh g-1 at a current density of 100 mA g-1 with an excellent cyclability. Moreover, a superior high-rate capability can also be achieved.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS76152	Nitrogen/Phosphorus co-doped graphene			Price

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