Comparative Study of Preparation and Electrochemical Properties of Nb4C3Tx (T = –OH, –F, or =O) and (Nb0.8Ti0.05V0.05Zr0.05Ta0.05)4C3Tx (T = –OH, –F, or =O) MXenes

Two–dimensional MXene synthesized from MAX phase ceramic has good electrical conductivity, promising to be used as electrodes. In this study, Nb4C3Tx (T = –OH, –F, or =O) MXene and low–entropy (Nb0.8Ti0.05V0.05Zr0.05Ta0.05)4C3Tx (T = –OH, –F, or =O) MXene were prepared by etching Nb4AlC3 and (Nb0.8T...

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Bibliographic Details
Published in:Metals (Basel ) 2023-09, Vol.13 (9), p.1548
Main Authors: Fu, Ming, Chen, Hongyu, Cheng, Juan, Chu, Longsheng, Feng, Qingguo, Hu, Chunfeng
Format: Article
Language:English
Subjects:
(Nb0.8Ti0.05V0.05Zr0.05Ta0.05)4AlC3
Atoms & subatomic particles
Carbon
Comparative studies
Electrical resistivity
Electrochemical analysis
electrochemical property
Electrodes
Energy storage
Graphite
Lithium
Lithium batteries
lithium battery
MXene
MXenes
Nb4AlC3
Plasma etching
Plasma sintering
Spectrum analysis
Temperature
Work stations
Citations: Items that this one cites
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Summary:Two–dimensional MXene synthesized from MAX phase ceramic has good electrical conductivity, promising to be used as electrodes. In this study, Nb4C3Tx (T = –OH, –F, or =O) MXene and low–entropy (Nb0.8Ti0.05V0.05Zr0.05Ta0.05)4C3Tx (T = –OH, –F, or =O) MXene were prepared by etching Nb4AlC3 and (Nb0.8Ti0.05V0.05Zr0.05Ta0.05)4AlC3 ceramics in the HF acid at 60 °C. By investigating the electrochemical properties of lithium batteries, it was found that the Nb4C3Tx and (Nb0.8Ti0.05V0.05Zr0.05Ta0.05)4C3Tx could provide the specific capacities of 163.7 mAh·g−1 and 130 mAh·g−1 after 50 cycles at a current density of 0.1 A·g−1, respectively, and maintain the coulombic efficiency close to 100%, good for the utilization of electrodes in lithium batteries.
ISSN:2075-4701
2075-4701
DOI:10.3390/met13091548