Environmental Friendly Scalable Production of Colloidal 2D Titanium Carbonitride MXene with Minimized Nanosheets Restacking for Excellent Cycle Life Lithium-Ion Batteries

Fei Du, Huan Tang, Limei Pan, Tian Zhang, Hanmei Lu, Jie Xiong, Jian Yang, Chuanfang (John) Zhang

Research output: Contribution to journalArticlepeer-review

225 Scopus citations

Abstract

Developing powerful Li-ion batteries require advanced nanostructured electrodes. Transition metal carbides or nitrides, known as MXenes, are an emerging family of two-dimensional materials. However, the lacking of an environmental-friendly preparation of colloidal MXene with few nanosheets-restacking greatly limits their usage in batteries and compromises the electrochemical performances. Here, we obtained the aqueous titanium carbonitride (Ti3CNTx) colloidal solution in the absence of hydrofluoric acid or organic solvents’ intercalation processes. We further suppressed the notorious nanosheets restacking issue through a freeze-drying strategy of the colloidal dispersion. The resulted Ti3CNTx powder, with a “fluffy” morphology and quite few percentage of restacked nanosheets, displays good charge storage capacities, high rate handling and excellent cycling performance, for example, a discharge capacity of 300 mAh g−1 at 0.5 A g−1 after 1000 cycles has been achieved.

Original languageEnglish
Pages (from-to)690-699
Number of pages10
JournalElectrochimica Acta
Volume235
DOIs
StatePublished - 1 May 2017

Keywords

  • Delamination
  • Freeze-drying
  • Intercalation
  • Lithium-ion batteries
  • TiCNT MXene
  • Two dimensional materials

Fingerprint

Dive into the research topics of 'Environmental Friendly Scalable Production of Colloidal 2D Titanium Carbonitride MXene with Minimized Nanosheets Restacking for Excellent Cycle Life Lithium-Ion Batteries'. Together they form a unique fingerprint.

Cite this