A study of the effects of synthesis conditions on Li5 FeO4/carbon nanotube composites

Suk Woo Lee; Hyun Kyung Kim; Myeong Seong Kim; Kwang Chul Roh; Kwang Bum Kim

doi:10.1038/srep46530

A study of the effects of synthesis conditions on Li₅ FeO₄/carbon nanotube composites

Suk Woo Lee, Hyun Kyung Kim, Myeong Seong Kim, Kwang Chul Roh, Kwang Bum Kim

Department of Materials Science and Engineering

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

4 Citations (Scopus)

Abstract

Li₅FeO₄/carbon nanotube (LFO/CNT) composites composed of sub-micron sized LFO and a nanocarbon with high electrical conductivity were successfully synthesized for the use as lithium ion predoping source in lithium ion cells. The phase of LFO in the composite was found to be very sensitive to the synthesis conditions, such as the heat treatment temperature, type of lithium salt, and physical state of the precursors (powder or pellet), due to the carbothermic reduction of Fe₃O₄ by CNTs during high temperature solid state reaction. Under optimized synthesis conditions, LFO/CNT composites could be synthesized without the formation of impurities. To the best of our knowledge, this is the first report on the synthesis and characterization of a sub-micron sized LFO/CNT composites.

Original language	English
Article number	46530
Journal	Scientific reports
Volume	7
DOIs	https://doi.org/10.1038/srep46530
Publication status	Published - 2017 Apr 19

Bibliographical note

Publisher Copyright:
© 2017 The Author(s).

All Science Journal Classification (ASJC) codes

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title = "A study of the effects of synthesis conditions on Li5 FeO4/carbon nanotube composites",

abstract = "Li5FeO4/carbon nanotube (LFO/CNT) composites composed of sub-micron sized LFO and a nanocarbon with high electrical conductivity were successfully synthesized for the use as lithium ion predoping source in lithium ion cells. The phase of LFO in the composite was found to be very sensitive to the synthesis conditions, such as the heat treatment temperature, type of lithium salt, and physical state of the precursors (powder or pellet), due to the carbothermic reduction of Fe3O4 by CNTs during high temperature solid state reaction. Under optimized synthesis conditions, LFO/CNT composites could be synthesized without the formation of impurities. To the best of our knowledge, this is the first report on the synthesis and characterization of a sub-micron sized LFO/CNT composites.",

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AU - Kim, Kwang Bum

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