Porous MXene Frameworks Support Pyrite Nanodots toward High-Rate Pseudocapacitive Li/Na-Ion Storage

Cheng Feng Du, Qinghua Liang, Yun Zheng, Yubo Luo, Hui Mao, Qingyu Yan

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

Presented are the novel Ti3C2Tx MXene-based nanohybrid that decorated by pyrite nanodots on its surface (denoted as FeS2@MXene). The nanohybrid was obtained by the one-step sulfurization of self-assembled iron hydroxide@MXene precursor. When used for Li/Na-ion storage, the FeS2@MXene nanohybrid present excellent rate capabilities. Particularly, for Li-ion storage, an elevated reversible specific capacity of 762 mAh g-1 at 10 A g-1 after 1000 cycles was achieved. And for Na-ion storage, the FeS2@MXene nanohybrid also delivering a reversible specific capacity of 563 mAh g-1 after 100 cycles at a current density of 0.1 A g-1.

Original languageEnglish
Pages (from-to)33779-33784
Number of pages6
JournalACS Applied Materials and Interfaces
Volume10
Issue number40
DOIs
StatePublished - 10 Oct 2018

Keywords

  • batteries
  • heterostructure
  • high-rate
  • MXene
  • pyrite nanodot

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