Synthesis of N-doped carbon by microwave-assisited pyrolysis ionic liquid for lithium-ion batteries

Yanshuang Meng, Jun Xia, Fuliang Zhu, Yue Zhang

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15 Scopus citations
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Abstract

Nitrogen-doped carbon (NDC) was prepared by a novel microwave-assisted pyrolysis of ionic liquid method. The carbonation temperature and time of the ionic liquid were obviously dropped down by microwave-assisted pyrolysis. The results of XRD, Raman spectra and FT-IR spectra indicated that the pyrolysis product was graphitic nitrogen-doped carbon. The nitrogen dopant in NDC created a porous structure and a large number of defects, which introduced many active sites for the Li+ ion adsorption. Consequently, the NDC delivered high electrochemical performances when used as anode for lithium ion batteries. The NDC electrode exhibited a specific capacity of 243.6mAh.g-1 after 50 cycles at 0.2C and 196mAh.g-1 after 50 cycles at 1.0C.
Original languageEnglish
Pages (from-to)9881-9890
Number of pages10
JournalInternational Journal of Electrochemical Science
Volume11
Issue number12
DOIs
StatePublished - 2016

Scopus Subject Areas

  • Electrochemistry

Keywords

  • Ionic liquid
  • Microwave-assisted pyrolysis
  • Nitrogen-doped carbon

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