Electrochimica Acta, volume 265, pages 140-150

Improving the electrochemical properties of MXene Ti3C2 multilayer for Li-ion batteries by vacuum calcination

Publication typeJournal Article
Publication date2018-03-01
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor6.6
ISSN00134686
General Chemical Engineering
Electrochemistry
Abstract
The electrochemical properties of MXene Ti3C2 multilayer for Li-ion batteries were improved greatly by vacuum calcination, after systematically evaluating its thermal stability in different atmosphere in details. In air, the as-prepared Ti3C2 could not be oxidized up to 429.9 °C and the rutile-TiO2 would remain as the oxidation product at 1200 °C. The surface functional groups especially F groups can be eliminated by heat treatment. After vacuum calcination at 400 °C, the Ti3C2 show much higher capacities due to the removal of OH groups (126.4 mAh·g−1 at 1C), and exhibited excellent rate capability. Besides, the formation of TiO2 nanoparticles at 700 °C further increases the first coulombic efficiency (62%) and capacity retention after 100 cycles (97%). In contrast, the dense microstructures of resulting TiCx formed after calcination at 1000 °C results in the worst electrochemical properties. This paper presented a relatively simple and easily scalable post-treatment for improving the electrochemical properties of MXene, and demonstrated a great potential of Ti3C2 of using as anode material for Li-ion batteries.

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Kong F. et al. Improving the electrochemical properties of MXene Ti3C2 multilayer for Li-ion batteries by vacuum calcination // Electrochimica Acta. 2018. Vol. 265. pp. 140-150.
GOST all authors (up to 50) Copy
Kong F., He X., Liu Q., Qi X., Zheng Y., Wang R., Bai Y. Improving the electrochemical properties of MXene Ti3C2 multilayer for Li-ion batteries by vacuum calcination // Electrochimica Acta. 2018. Vol. 265. pp. 140-150.
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TY - JOUR
DO - 10.1016/j.electacta.2018.01.196
UR - https://doi.org/10.1016%2Fj.electacta.2018.01.196
TI - Improving the electrochemical properties of MXene Ti3C2 multilayer for Li-ion batteries by vacuum calcination
T2 - Electrochimica Acta
AU - Kong, Fanyu
AU - He, Xiaodong
AU - Liu, Qianqian
AU - Qi, Xinxin
AU - Zheng, Yongting
AU - Wang, Rongguo
AU - Bai, Yuelei
PY - 2018
DA - 2018/03/01 00:00:00
PB - Elsevier
SP - 140-150
VL - 265
SN - 0013-4686
ER -
BibTex
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BibTex Copy
@article{2018_Kong,
author = {Fanyu Kong and Xiaodong He and Qianqian Liu and Xinxin Qi and Yongting Zheng and Rongguo Wang and Yuelei Bai},
title = {Improving the electrochemical properties of MXene Ti3C2 multilayer for Li-ion batteries by vacuum calcination},
journal = {Electrochimica Acta},
year = {2018},
volume = {265},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016%2Fj.electacta.2018.01.196},
pages = {140--150},
doi = {10.1016/j.electacta.2018.01.196}
}
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