Auto-programmed heteroarchitecturing: Self-assembling ordered mesoporous carbon between two-dimensional Ti3C2Tx MXene layers

Abeer Enaiet Allah, Jie Wang, Yusuf Valentino Kaneti, Tao Li, Ahmed A. Farghali, Mohamed Hamdy Khedr, Ashok Kumar Nanjundan, Bing Ding, Hui Dou, Xiaogang Zhang, B. Yoshio, Yusuke Yamauchi

Research output: Contribution to journalArticlepeer-review

Abstract

Two-dimensional (2D) materials have attracted significant research interests for energy-storage applications owing to their unique structural and electronic properties. The modification of 2D materials with ordered mesoporous carbon (OMC) offers great opportunities for increasing the ion-accessible surface area and improving the ion diffusion. Herein, we report an unprecedented type of heterostructured MXene (Ti3C2Tx)/nitrogen-doped OMC (NOMC) hybrid, which is prepared via the self-assembly of melamine resol-P123 micelles with exfoliated Ti3C2Tx nanosheets. The NOMC exhibits well-ordered mesopores which are aligned with Ti3C2Tx nanosheet surface. This novel structure not only prevents the stacking of MXene nanosheets, but also provides a fast ion-diffusion path. When used as an electrode material for supercapacitors, the Ti3C2Tx-NOMC hybrid exhibits a high gravimetric capacitance of 329 F g−1 and a volumetric capacitance of 823 F cm−3. Furthermore, the Ti3C2Tx-NOMC composite also displays excellent rate capability and good cycling stability, thus highlighting the benefit of hybridizing MXene with ordered mesoporous carbon for for enhancing the energy storage performance.

Original languageEnglish
Article number103991
JournalNano Energy
Volume65
DOIs
Publication statusPublished - 2019 Nov
Externally publishedYes

Keywords

  • Electrochemistry
  • Heterostructure
  • Ordered mesoporous carbon
  • Self-assembly
  • Two-dimensional material

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

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