Growth and growth mechanism of oxide nanocrystals on electrochemically exfoliated graphene for lithium storage

Zexuan Xu, Ping Zhang, Jialu Chen, Wenbo Yue, Wuzong Zhou

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
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Abstract

Difficulty of growing metal oxides on intrinsic graphene due to few defects and functional groups on its surface was overcome by deposition of polymerized precursors via multiple interacting sites, followed by crystallization of metal oxides inside the aggregated polymer. As a typical example, Mn3O4-decorated electrochemically exfoliated graphene (EEG) was successfully prepared and served as an advanced anode material for lithium-ion batteries. Because EEG possesses higher electronic conductivity and stronger mechanical strength in comparison with commonly used reduced graphene oxide (rGO), the new composite of EEG-Mn3O4 exhibits much better electrochemical performance than rGO-Mn3O4, including superior reversible capacity and better cycling stability.
Original languageEnglish
Pages (from-to)174-181
JournalEnergy Storage Materials
Volume18
Early online date30 Aug 2018
DOIs
Publication statusPublished - Mar 2019

Keywords

  • Electrochemically exfoliated graphene
  • Trimanganese tetraoxide
  • Polymerization
  • Gentle synthesis
  • Lithium-ion batteries

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