Binder-free, self-standing films of iron oxide nanoparticles deposited on ionic liquid functionalized carbon nanotubes for lithium-ion battery anodes

Bo Mee Bak; Sung Kon Kim; Ho Seok Park

doi:10.1016/j.matchemphys.2014.01.008

Binder-free, self-standing films of iron oxide nanoparticles deposited on ionic liquid functionalized carbon nanotubes for lithium-ion battery anodes

Bo Mee Bak, Sung Kon Kim, Ho Seok Park

Department of Chemical and Biochemical Engineering

Kyung Hee University

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

20 Scopus citations

Abstract

We report in-situ synthesis and direct deposition of Fe₂O ₃ nanoparticles (NPs) on the ionic liquid (IL)-functionalized carbon nanotubes (fCNT). As shown in transmission electron microscope (TEM) and scanning TEM (STEM) images, Fe₂O₃ NPs with the diameter of 3-5 nm are randomly distributed on the sidewall of fCNT, revealing the nanocrystalline structure. The chemical identity and interaction of the fCNT/Fe₂O₃ composite are investigated by FT-IR, Raman and XPS analyses. In particular, the fCNT/Fe₂O₃ composite is solution-processable in a form of binder free and self-standing film. Such a free-standing electrode film based on the fCNT/Fe₂O₃ composite achieve the discharge capacity of 413 mAh g^-1 which is much greater than 34 mAh g^-1 of the CNT and 191 mAh g^-1 of the fCNT due to the redox reaction of Fe₂O₃ NPs. Moreover, the fCNT/Fe₂O₃ composite show the coulombic efficiency of 98% and the capacity fading from 272 mAh g^-1 to 182 mAh g ^-1 after 50 cycles of charge/discharge.

Original language	English
Pages (from-to)	396-401
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	144
Issue number	3
DOIs	https://doi.org/10.1016/j.matchemphys.2014.01.008
State	Published - 15 Apr 2014

Keywords

Composite materials
Electrochemical properties
Nanostructures
Oxides

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.matchemphys.2014.01.008

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title = "Binder-free, self-standing films of iron oxide nanoparticles deposited on ionic liquid functionalized carbon nanotubes for lithium-ion battery anodes",

abstract = "We report in-situ synthesis and direct deposition of Fe2O 3 nanoparticles (NPs) on the ionic liquid (IL)-functionalized carbon nanotubes (fCNT). As shown in transmission electron microscope (TEM) and scanning TEM (STEM) images, Fe2O3 NPs with the diameter of 3-5 nm are randomly distributed on the sidewall of fCNT, revealing the nanocrystalline structure. The chemical identity and interaction of the fCNT/Fe2O3 composite are investigated by FT-IR, Raman and XPS analyses. In particular, the fCNT/Fe2O3 composite is solution-processable in a form of binder free and self-standing film. Such a free-standing electrode film based on the fCNT/Fe2O3 composite achieve the discharge capacity of 413 mAh g-1 which is much greater than 34 mAh g-1 of the CNT and 191 mAh g-1 of the fCNT due to the redox reaction of Fe2O3 NPs. Moreover, the fCNT/Fe2O3 composite show the coulombic efficiency of 98% and the capacity fading from 272 mAh g-1 to 182 mAh g -1 after 50 cycles of charge/discharge.",

keywords = "Composite materials, Electrochemical properties, Nanostructures, Oxides",

author = "Bak, {Bo Mee} and Kim, {Sung Kon} and Park, {Ho Seok}",

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AU - Bak, Bo Mee

AU - Kim, Sung Kon

AU - Park, Ho Seok

PY - 2014/4/15

Y1 - 2014/4/15

N2 - We report in-situ synthesis and direct deposition of Fe2O 3 nanoparticles (NPs) on the ionic liquid (IL)-functionalized carbon nanotubes (fCNT). As shown in transmission electron microscope (TEM) and scanning TEM (STEM) images, Fe2O3 NPs with the diameter of 3-5 nm are randomly distributed on the sidewall of fCNT, revealing the nanocrystalline structure. The chemical identity and interaction of the fCNT/Fe2O3 composite are investigated by FT-IR, Raman and XPS analyses. In particular, the fCNT/Fe2O3 composite is solution-processable in a form of binder free and self-standing film. Such a free-standing electrode film based on the fCNT/Fe2O3 composite achieve the discharge capacity of 413 mAh g-1 which is much greater than 34 mAh g-1 of the CNT and 191 mAh g-1 of the fCNT due to the redox reaction of Fe2O3 NPs. Moreover, the fCNT/Fe2O3 composite show the coulombic efficiency of 98% and the capacity fading from 272 mAh g-1 to 182 mAh g -1 after 50 cycles of charge/discharge.

AB - We report in-situ synthesis and direct deposition of Fe2O 3 nanoparticles (NPs) on the ionic liquid (IL)-functionalized carbon nanotubes (fCNT). As shown in transmission electron microscope (TEM) and scanning TEM (STEM) images, Fe2O3 NPs with the diameter of 3-5 nm are randomly distributed on the sidewall of fCNT, revealing the nanocrystalline structure. The chemical identity and interaction of the fCNT/Fe2O3 composite are investigated by FT-IR, Raman and XPS analyses. In particular, the fCNT/Fe2O3 composite is solution-processable in a form of binder free and self-standing film. Such a free-standing electrode film based on the fCNT/Fe2O3 composite achieve the discharge capacity of 413 mAh g-1 which is much greater than 34 mAh g-1 of the CNT and 191 mAh g-1 of the fCNT due to the redox reaction of Fe2O3 NPs. Moreover, the fCNT/Fe2O3 composite show the coulombic efficiency of 98% and the capacity fading from 272 mAh g-1 to 182 mAh g -1 after 50 cycles of charge/discharge.

KW - Composite materials

KW - Electrochemical properties

KW - Nanostructures

KW - Oxides

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JF - Materials Chemistry and Physics

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Binder-free, self-standing films of iron oxide nanoparticles deposited on ionic liquid functionalized carbon nanotubes for lithium-ion battery anodes

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Keywords

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