Sandwich-structured graphene-NiFe2O4-carbon nanocomposite anodes with exceptional electrochemical performance for Li ion batteries

Elham Kamali Heidari, Biao Zhang, Mahmoud Heydarzadeh Sohi, Abolghasem Ataie, Jang Kyo Kim

Research output: Journal article publicationJournal articleAcademic researchpeer-review

65 Citations (Scopus)

Abstract

Graphene-NiFe2O4-carbon nanocomposites with a sandwich structure are synthesized via the hydrothermal growth of NiFe2O4nanoparticles on graphene sheets, followed by carbon coating. As a promising anode material for Li ion batteries, the nanocomposites deliver exceptional cycle stability of 1195 mA h g-1after 200 cycles measured at 500 mA g-1. This value is among the highest reported so far for anodes containing similar NiFe2O4nanoparticles. The synergy arising from the conductive graphene substrate, the well-dispersed, ultrafine NiFe2O4nanoparticles and the protective carbon layer sustaining the sandwich together is responsible for this trait.
Original languageEnglish
Pages (from-to)8314-8322
Number of pages9
JournalJournal of Materials Chemistry A
Volume2
Issue number22
DOIs
Publication statusPublished - 14 Jun 2014
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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