A facile route to synthesize sheet-like Na2Ti3O7 with improved sodium storage properties

Man Xie; Kangkang Wang; Renjie Chen; Li Li; Feng Wu

doi:10.1007/s40242-015-4422-x

A facile route to synthesize sheet-like Na₂Ti₃O₇ with improved sodium storage properties

Man Xie, Kangkang Wang, Renjie Chen^*, Li Li, Feng Wu

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

17 Citations (Scopus)

Abstract

A high purity sheet-like Na₂Ti₃O₇ material was synthesized by a new facile solid-state method with hollow sphere TiO₂ as titanium source. X-Ray diffraction(XRD) measurement proves that no impurity phase existed when the sample was heated at 900 °C. Charge/discharge measurement was performed in a potential range of 0.01–2.5 V at different current-rates(C-rates). The initial charge/discharge capacities are 191/424 mA·h/g at 0.1 C and still remain as high as 101 mA·h/g after 50 cycles. CV test proves that the large irreversible capacity in the initial cycle results from the formation of the solid electrolyte interface(SEI). However, the electrode presents an increased initial coulombic efficiency in a 1 mol/L NaPF₆ electrolyte compared to that in a 1 mol/L NaClO4 electrolyte.

Original language	English
Pages (from-to)	443-446
Number of pages	4
Journal	Chemical Research in Chinese Universities
Volume	31
Issue number	3
DOIs	https://doi.org/10.1007/s40242-015-4422-x
Publication status	Published - 28 Jun 2015

Keywords

NaTiO; Sodium-ion battery; Anode; Hollow sphere TiO

Access to Document

10.1007/s40242-015-4422-x

Cite this

Xie, M., Wang, K., Chen, R., Li, L., & Wu, F. (2015). A facile route to synthesize sheet-like Na₂Ti₃O₇ with improved sodium storage properties. Chemical Research in Chinese Universities, 31(3), 443-446. https://doi.org/10.1007/s40242-015-4422-x

@article{67aeb559244e4e5b81330b6b39eaab5c,

title = "A facile route to synthesize sheet-like Na2Ti3O7 with improved sodium storage properties",

abstract = "A high purity sheet-like Na2Ti3O7 material was synthesized by a new facile solid-state method with hollow sphere TiO2 as titanium source. X-Ray diffraction(XRD) measurement proves that no impurity phase existed when the sample was heated at 900 °C. Charge/discharge measurement was performed in a potential range of 0.01–2.5 V at different current-rates(C-rates). The initial charge/discharge capacities are 191/424 mA·h/g at 0.1 C and still remain as high as 101 mA·h/g after 50 cycles. CV test proves that the large irreversible capacity in the initial cycle results from the formation of the solid electrolyte interface(SEI). However, the electrode presents an increased initial coulombic efficiency in a 1 mol/L NaPF6 electrolyte compared to that in a 1 mol/L NaClO4 electrolyte.",

keywords = "NaTiO; Sodium-ion battery; Anode; Hollow sphere TiO",

author = "Man Xie and Kangkang Wang and Renjie Chen and Li Li and Feng Wu",

note = "Publisher Copyright: {\textcopyright} 2015, Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH.",

year = "2015",

month = jun,

day = "28",

doi = "10.1007/s40242-015-4422-x",

language = "English",

volume = "31",

pages = "443--446",

journal = "Chemical Research in Chinese Universities",

issn = "1005-9040",

publisher = "Springer International Publishing AG",

number = "3",

}

TY - JOUR

T1 - A facile route to synthesize sheet-like Na2Ti3O7 with improved sodium storage properties

AU - Xie, Man

AU - Wang, Kangkang

AU - Chen, Renjie

AU - Li, Li

AU - Wu, Feng

PY - 2015/6/28

Y1 - 2015/6/28

N2 - A high purity sheet-like Na2Ti3O7 material was synthesized by a new facile solid-state method with hollow sphere TiO2 as titanium source. X-Ray diffraction(XRD) measurement proves that no impurity phase existed when the sample was heated at 900 °C. Charge/discharge measurement was performed in a potential range of 0.01–2.5 V at different current-rates(C-rates). The initial charge/discharge capacities are 191/424 mA·h/g at 0.1 C and still remain as high as 101 mA·h/g after 50 cycles. CV test proves that the large irreversible capacity in the initial cycle results from the formation of the solid electrolyte interface(SEI). However, the electrode presents an increased initial coulombic efficiency in a 1 mol/L NaPF6 electrolyte compared to that in a 1 mol/L NaClO4 electrolyte.

AB - A high purity sheet-like Na2Ti3O7 material was synthesized by a new facile solid-state method with hollow sphere TiO2 as titanium source. X-Ray diffraction(XRD) measurement proves that no impurity phase existed when the sample was heated at 900 °C. Charge/discharge measurement was performed in a potential range of 0.01–2.5 V at different current-rates(C-rates). The initial charge/discharge capacities are 191/424 mA·h/g at 0.1 C and still remain as high as 101 mA·h/g after 50 cycles. CV test proves that the large irreversible capacity in the initial cycle results from the formation of the solid electrolyte interface(SEI). However, the electrode presents an increased initial coulombic efficiency in a 1 mol/L NaPF6 electrolyte compared to that in a 1 mol/L NaClO4 electrolyte.

KW - NaTiO; Sodium-ion battery; Anode; Hollow sphere TiO

UR - http://www.scopus.com/inward/record.url?scp=84937842387&partnerID=8YFLogxK

U2 - 10.1007/s40242-015-4422-x

DO - 10.1007/s40242-015-4422-x

M3 - Article

AN - SCOPUS:84937842387

SN - 1005-9040

VL - 31

SP - 443

EP - 446

JO - Chemical Research in Chinese Universities

JF - Chemical Research in Chinese Universities

IS - 3

ER -

A facile route to synthesize sheet-like Na₂Ti₃O₇ with improved sodium storage properties

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this