Carbon-Coated MoSe2 /MXene Hybrid Nanosheets for Superior Potassium Storage

ACS Nano
Huawen HuangLei Zhang

Abstract

Potassium-ion batteries (PIBs) are attracting intensive interest for large-scale applications due to the high natural abundance of potassium sources. However, the large radius of K+ makes it difficult for electrode materials to accommodate the repeated K+ insertion and extraction. Thus, developing high-performance electrode materials for PIBs remains a great challenge. Herein, we present the rational design and fabrication of hierarchical carbon-coated MoSe2/MXene hybrid nanosheets (MoSe2/MXene@C) as a superior anode material for PIBs. Specifically, the highly conductive MXene substrate can effectively relieve the aggregation of MoSe2 nanosheets and improve the electronic conductivity. Moreover, the carbon layer enables us to reinforce the composite structure and further enhance the overall conductivity of the hybrid nanosheets. Meanwhile, strong chemical interactions are found at the interface of MoSe2 nanosheets and MXene flakes, contributing to promoting the charge-transfer kinetics and improving the structural durability. Consequently, as an anode material for PIBs, the resulting MoSe2/MXene@C achieves a high reversible capacity of 355 mA h g-1 at 200 mA g-1 after 100 cycles and an outstanding rate performance with 183 mA h...Continue Reading

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Citations

Mar 20, 2020·Chemical Communications : Chem Comm·Xiaodong ShiShuquan Liang
Jul 24, 2020·Nanoscale·Muhammad Kashif Aslam, Maowen Xu
Nov 10, 2020·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Xiaoqiong DuBiao Zhang
Nov 21, 2020·Advanced Materials·Fangwang MingHusam N Alshareef
Feb 18, 2021·Chemical Society Reviews·Di WuJesse V Jokerst
Mar 16, 2021·ACS Applied Materials & Interfaces·Shaokun ChongWei Huang
Mar 20, 2021·Advanced Materials·Brian C WyattBabak Anasori
Feb 19, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Brian C WyattBabak Anasori
May 24, 2021·Journal of Colloid and Interface Science·Qingqing JiangJuncheng Hu
May 23, 2021·Journal of Colloid and Interface Science·K NasrinM Sathish
Dec 18, 2020·ACS Applied Materials & Interfaces·Taohong WangBingan Lu
Aug 14, 2021·Journal of Colloid and Interface Science·Huiqiao LiuQiang-Shan Jing
Aug 26, 2021·Proceedings of the National Academy of Sciences of the United States of America·Xianlu LuWeiyou Yang
Jan 16, 2020·Chemical Reviews·Tomooki HosakaShinichi Komaba

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