SnS2 nanosheets arrays sandwiched by N-doped carbon and TiO2 for high-performance Na-ion storage

Weina Ren; Haifeng Zhang; Cao Guan; Chuanwei Cheng

doi:10.1016/j.gee.2017.09.005

SnS₂ nanosheets arrays sandwiched by N-doped carbon and TiO₂ for high-performance Na-ion storage

Weina Ren, Haifeng Zhang, Cao Guan, Chuanwei Cheng

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

In this paper, SnS₂ nanosheets arrays sandwiched by porous N-doped carbon and TiO₂ (TiO₂@SnS₂@N-C) on flexible carbon cloth are prepared and tested as a free-standing anode for high-performance sodium ion batteries. The as-obtained TiO₂@SnS₂@N-C composite delivers a remarkable capacity performance (840 mA h g⁻¹ at a current density of 200 mA g⁻¹), excellent rate capability and long-cycling life stability (293 mA h g⁻¹ at 1 A g⁻¹ after 600 cycles). The excellent electrochemical performance can be attributed to the synergistic effect of each component of the unique hybrid structure, in which the SnS₂ nanosheets with open framworks offer high capacity, while the porous N-doped carbon nanoplates arrays on flexible carbon cloth are able to improve the conductivity and the TiO₂ passivation layer can keep the structure integrity of SnS₂ nanosheets.

Original language	English
Pages (from-to)	42-49
Number of pages	8
Journal	Green Energy and Environment
Volume	3
Issue number	1
DOIs	https://doi.org/10.1016/j.gee.2017.09.005
State	Published - Jan 2018
Externally published	Yes

Keywords

N-doped carbon
Sandwich structure
SnS nanosheets
Sodium-ion battery
TiO

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This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.gee.2017.09.005

Cite this

@article{e49f709daa0e4bb39512448e72b7170d,

title = "SnS2 nanosheets arrays sandwiched by N-doped carbon and TiO2 for high-performance Na-ion storage",

abstract = "In this paper, SnS2 nanosheets arrays sandwiched by porous N-doped carbon and TiO2 (TiO2@SnS2@N-C) on flexible carbon cloth are prepared and tested as a free-standing anode for high-performance sodium ion batteries. The as-obtained TiO2@SnS2@N-C composite delivers a remarkable capacity performance (840 mA h g−1 at a current density of 200 mA g−1), excellent rate capability and long-cycling life stability (293 mA h g−1 at 1 A g−1 after 600 cycles). The excellent electrochemical performance can be attributed to the synergistic effect of each component of the unique hybrid structure, in which the SnS2 nanosheets with open framworks offer high capacity, while the porous N-doped carbon nanoplates arrays on flexible carbon cloth are able to improve the conductivity and the TiO2 passivation layer can keep the structure integrity of SnS2 nanosheets.",

keywords = "N-doped carbon, Sandwich structure, SnS nanosheets, Sodium-ion battery, TiO",

author = "Weina Ren and Haifeng Zhang and Cao Guan and Chuanwei Cheng",

note = "Publisher Copyright: {\textcopyright} 2017 Institute of Process Engineering, Chinese Academy of Sciences",

year = "2018",

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doi = "10.1016/j.gee.2017.09.005",

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T1 - SnS2 nanosheets arrays sandwiched by N-doped carbon and TiO2 for high-performance Na-ion storage

AU - Ren, Weina

AU - Zhang, Haifeng

AU - Guan, Cao

AU - Cheng, Chuanwei

PY - 2018/1

Y1 - 2018/1

N2 - In this paper, SnS2 nanosheets arrays sandwiched by porous N-doped carbon and TiO2 (TiO2@SnS2@N-C) on flexible carbon cloth are prepared and tested as a free-standing anode for high-performance sodium ion batteries. The as-obtained TiO2@SnS2@N-C composite delivers a remarkable capacity performance (840 mA h g−1 at a current density of 200 mA g−1), excellent rate capability and long-cycling life stability (293 mA h g−1 at 1 A g−1 after 600 cycles). The excellent electrochemical performance can be attributed to the synergistic effect of each component of the unique hybrid structure, in which the SnS2 nanosheets with open framworks offer high capacity, while the porous N-doped carbon nanoplates arrays on flexible carbon cloth are able to improve the conductivity and the TiO2 passivation layer can keep the structure integrity of SnS2 nanosheets.

AB - In this paper, SnS2 nanosheets arrays sandwiched by porous N-doped carbon and TiO2 (TiO2@SnS2@N-C) on flexible carbon cloth are prepared and tested as a free-standing anode for high-performance sodium ion batteries. The as-obtained TiO2@SnS2@N-C composite delivers a remarkable capacity performance (840 mA h g−1 at a current density of 200 mA g−1), excellent rate capability and long-cycling life stability (293 mA h g−1 at 1 A g−1 after 600 cycles). The excellent electrochemical performance can be attributed to the synergistic effect of each component of the unique hybrid structure, in which the SnS2 nanosheets with open framworks offer high capacity, while the porous N-doped carbon nanoplates arrays on flexible carbon cloth are able to improve the conductivity and the TiO2 passivation layer can keep the structure integrity of SnS2 nanosheets.

KW - N-doped carbon

KW - Sandwich structure

KW - SnS nanosheets

KW - Sodium-ion battery

KW - TiO

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