Zn substitution NiFe2O4nanoparticles with enhanced conductivity as high-performances electrodes for lithium ion batteries

Junwei Mao, Xianhua Hou, Fengsi Huang, Kaixiang Shen, Kwok Ho Lam, Qiang Ru, Shejun Hu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)

Abstract

Zn2+ion substituted nickel ferrite nanomaterials with the chemical formula Ni1-xZnxFe2O4for x = 0, 0.3, 0.5, 0.7 and 1 have been synthesized by a facile green-chemical hydrothermal method as anode materials in lithium ion battery. The morphology and structure of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The physical and electrochemical properties were tested by electrochemical system. Furthermore, the energetic and electronic properties of the samples were investigated by density functional calculations. The results suggest that Zn substitution can affect the conduction performance of the zinc - nickel ferrite. Meanwhile, electrochemical results show that an enhancement in the capacity with increasing Zn concentration is observed especially for x = 0.3 which exhibit high discharge capacity of 1416 mAh g-1at the end of 100th cycle. Moreover, the theoretical research method with high yield synthesis strategy described in the present work holds promise for the general fabrication of other metallic elements substitution in complex transition metal oxides for high power LIBs.
Original languageEnglish
Pages (from-to)265-274
Number of pages10
JournalJournal of Alloys and Compounds
Volume676
DOIs
Publication statusPublished - 15 Aug 2016

Keywords

  • Anode materials
  • Density functional calculations
  • Electrochemical properties
  • Lithium ion battery

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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