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

doi:10.1039/c4ta00507d

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

Mechanical & Nuclear Engineering

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

Abstract

Graphene-NiFe₂O₄-carbon nanocomposites with a sandwich structure are synthesized via the hydrothermal growth of NiFe ₂O₄ nanoparticles 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^-1 after 200 cycles measured at 500 mA g^-1. This value is among the highest reported so far for anodes containing similar NiFe₂O₄ nanoparticles. The synergy arising from the conductive graphene substrate, the well-dispersed, ultrafine NiFe₂O₄ nanoparticles and the protective carbon layer sustaining the sandwich together is responsible for this trait.

Original language	British English
Pages (from-to)	8314-8322
Number of pages	9
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	22
DOIs	https://doi.org/10.1039/c4ta00507d
State	Published - 14 Jun 2014

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SDG 7 Affordable and Clean Energy

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Cite this

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

abstract = "Graphene-NiFe2O4-carbon nanocomposites with a sandwich structure are synthesized via the hydrothermal growth of NiFe 2O4 nanoparticles 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-1 after 200 cycles measured at 500 mA g-1. This value is among the highest reported so far for anodes containing similar NiFe2O4 nanoparticles. The synergy arising from the conductive graphene substrate, the well-dispersed, ultrafine NiFe2O4 nanoparticles and the protective carbon layer sustaining the sandwich together is responsible for this trait.",

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AU - Ataie, Abolghasem

AU - Kim, Jang Kyo

PY - 2014/6/14

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