The Synthesis of Porous Ti3C2Tx/SnSe Composite and Its Potassium Storage Performance

ZHAO Jie; LI Chaolin; CHEN Gang; JI Fei; SHEN Yiyong; PENG Juan

doi:10.6054/j.jscnun.2021089

Journal of South China Normal University (Natural Science Edition) > 2021 > 53(6): 28-33. > DOI: 10.6054/j.jscnun.2021089

ZHAO Jie, LI Chaolin, CHEN Gang, JI Fei, SHEN Yiyong, PENG Juan. The Synthesis of Porous Ti₃C₂T_x/SnSe Composite and Its Potassium Storage Performance[J]. Journal of South China Normal University (Natural Science Edition), 2021, 53(6): 28-33. DOI: 10.6054/j.jscnun.2021089

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The Synthesis of Porous Ti₃C₂T_x/SnSe Composite and Its Potassium Storage Performance

ZHAO Jie^{1, 2, 3},
LI Chaolin^1, ,,
CHEN Gang^{2, 3},
JI Fei^{2, 3},
SHEN Yiyong^{2, 3},
PENG Juan^{2, 3}

1.
School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518051, China
2.
Shenzhen Environmental Technology Group Co. LTD., Shenzhen 518049, China
3.
State Environmental Protection Engineering Center (Shenzhen) for Hazardous Waste Utilization and Disposal, Shenzhen 518049, China

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Received Date: July 04, 2021
Available Online: January 09, 2022

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Abstract

Abstract

The porous MXene composite material (Ti₃C₂T_x/SnSe) was fabricated with the in-situ oxidation-etching method and the hydrothermal synthesis technology. The composition, structure and electrochemical properties of the prepared materials were evaluated. The research results showed that the porous Ti₃C₂T_x/SnSe electrode deliveed a capacity of 381.5 mA ·h/g at a current density of 0.05 A/g while the specific capacity of the pure SnSe electrode was only 119.2 mA ·h/g. At a current density of 1 A/g, the Ti₃C₂T_x/SnSe electrode showed an initial reversible specific capacity of 118.5 mA ·h/g and it remained at 35.4 mA ·h/g after 500 cycles. The excellent electrochemical performance of the porous Ti₃C₂T_x/SnSe electrode material mainly benefits from the high conductivity of Ti₃C₂T_x, which not only alleviates the volume expansion of SnSe but also provides a good path for the ionic transfer.
- MXene,
- Ti₃C₂T_x,
- potassium-ion battery,
- electrochemical performance

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References

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The Synthesis of Porous Ti₃C₂T_x/SnSe Composite and Its Potassium Storage Performance