Iron sulfides with dopamine-derived carbon coating as superior performance anodes for sodium-ion batteries

Aihua Jin, Seung-Ho Yu, Jae Hyuk Park, Seok Mun Kang, Mi Ju Kim, Tae Yeol Jeon, Junyoung Mun, Yung Eun Sung

Research output: Contribution to journalArticle

Abstract

High energy ball-milled iron sulfides with thin carbon layer coating (BM-FeS/C composites) were prepared by the simple and economical process. Ball-milled process, followed by carbon coating, reduced the particle size and increased the electrical conductivity. When employed as sodium-ion battery anodes, BM-FeS/C composites showed extremely high electrochemical performance with reversible specific capacity of 589.8 mAh·g−1 after 100 cycles at a current density of 100 mA·g−1. They also exhibited superior rate capabilities of 375.9 mAh·g−1 even at 3.2 A·g−1 and 423.6 mAh·g−1 at 1.5 A·g−1. X-ray absorption near edge structure analysis confirmed the electrochemical pathway for conversion reaction of BM-FeS/C composites.[Figure not available: see fulltext.].

Original languageEnglish
JournalNano Research
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Sulfides
Dopamine
Anodes
Carbon
Iron
Sodium
Ions
Coatings
Composite materials
X ray absorption
Current density
Particle size

Keywords

  • dopamine
  • high energy ball-milling
  • iron sulfides
  • sodium-ion batteries
  • X-ray absorption near edge structure

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Iron sulfides with dopamine-derived carbon coating as superior performance anodes for sodium-ion batteries. / Jin, Aihua; Yu, Seung-Ho; Park, Jae Hyuk; Kang, Seok Mun; Kim, Mi Ju; Jeon, Tae Yeol; Mun, Junyoung; Sung, Yung Eun.

In: Nano Research, 01.01.2019.

Research output: Contribution to journalArticle

Jin, Aihua ; Yu, Seung-Ho ; Park, Jae Hyuk ; Kang, Seok Mun ; Kim, Mi Ju ; Jeon, Tae Yeol ; Mun, Junyoung ; Sung, Yung Eun. / Iron sulfides with dopamine-derived carbon coating as superior performance anodes for sodium-ion batteries. In: Nano Research. 2019.
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AU - Kim, Mi Ju

AU - Jeon, Tae Yeol

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