Synthesis and Li electroactivity of MnS/Carbon nanotube composites

Gwang Hee Lee, Kyung Mi Min, Dong-Wan Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A simple synthetic process is demonstrated for the preparation of MnS/carbon nanotube (CNT) composites for Li ion battery electrodes. CNTs were initially treated using a strong acid solution to generate carboxylate ions (-COO-) on their surfaces. The MnS/CNT composites were synthesized by a polyvinyl-pyrrolidone-assisted hydrothermal method in the presence of as-functionalized CNTs. The phase and morphology of the MnS/CNT composites and pure MnS microspheres were characterized using X-ray diffraction and high-resolution transmission electron microscopy. Furthermore, the Li electroactivity levels of the MnS/CNT composites and MnS microspheres were investigated using cyclic voltammetry and galvanostatic cycling. The MnS/CNT composite electrodes showed higher specific capacities exceeding 365 mA h g -1 at a C/10 current rate and enhanced cyclic performance compared to pure MnS microspheres.

Original languageEnglish
Pages (from-to)539-544
Number of pages6
JournalJournal of the Korean Ceramic Society
Volume50
Issue number6
DOIs
Publication statusPublished - 2013 Nov 30
Externally publishedYes

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Microspheres
Composite materials
Polyvinyls
Pyrrolidinones
Electrodes
High resolution transmission electron microscopy
Cyclic voltammetry
Ions
X ray diffraction
Acids

Keywords

  • Functionalized CNT
  • Hydrothermal process
  • Li ion battery
  • MnS microspheres

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Synthesis and Li electroactivity of MnS/Carbon nanotube composites. / Lee, Gwang Hee; Min, Kyung Mi; Kim, Dong-Wan.

In: Journal of the Korean Ceramic Society, Vol. 50, No. 6, 30.11.2013, p. 539-544.

Research output: Contribution to journalArticle

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