Three-dimensional porous MXene/layered double hydroxide composite for high performance supercapacitors

Ya Wang, Hui Dou*, Jie Wang, Bing Ding, Yunling Xu, Zhi Chang, Xiaodong Hao

*この研究の対応する著者

研究成果: Article査読

168 被引用数 (Scopus)

抄録

In this work, an exfoliated MXene (e-MXene) nanosheets/nickel-aluminum layered double hydroxide (MXene/LDH) composite as supercapacitor electrode material is fabricated by in situ growth of LDH on e-MXene substrate. The LDH platelets homogeneously grown on the surface of the e-MXene sheets construct a three-dimensional (3D) porous structure, which not only leads to high active sites exposure of LDH and facile liquid electrolyte penetration, but also alleviates the volume change of LDH during the charge/discharge process. Meanwhile, the e -MXene substrate forms a conductive network to facilitate the electron transport of active material. The optimized MXene/LDH composite exhibits a high specific capacitance of 1061 F g−1 at a current density of 1 A g−1, excellent capacitance retention of 70% after 4000 cycle tests at a current density of 4 A g−1 and a good rate capability with 556 F g−1 retention at 10 A g−1.

本文言語English
ページ(範囲)221-228
ページ数8
ジャーナルJournal of Power Sources
327
DOI
出版ステータスPublished - 2016 9月 30
外部発表はい

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学

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