Controlling morphology and enhancing electrochemical performance of cobalt oxide by addition of graphite

Ling Fei, Qianglu Lin, Bin Yuan, Maitham Naeemi, Yun Xu, Yuling Li, Shuguang Deng, Hongmei Luo

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Co3O4 nanowire, nanoparticle network, and Co 3O4/graphite nanocomposite were synthesized via a hydrothermal route accompanied with a post-annealing step. The Co 3O4 nanowire was formed without adding graphite; after introducing graphite, the morphology of the Co3O4 nanocomposite changed to a network through the partial overlapping of nanoparticles. The electrochemical properties of the samples were studied as anode materials in lithium-ion batteries. The Co3O 4/graphite nanocomposite outperforms two different pure Co 3O4 samples by showing superior Li-battery performance with dramatically enhanced cyclic performance at a current density of 500 mA/g and excellent rate performance. Its reversible capacity remains as high as 551 mA h/g after 50th cycle.

Original languageEnglish (US)
Pages (from-to)59-62
Number of pages4
JournalMaterials Letters
Volume98
DOIs
StatePublished - 2013
Externally publishedYes

Fingerprint

cobalt oxides
Graphite
Cobalt
graphite
Nanocomposites
nanocomposites
Oxides
Nanowires
electric batteries
nanowires
Nanoparticles
nanoparticles
Electrochemical properties
Anodes
anodes
Current density
lithium
routes
Annealing
current density

Keywords

  • Cobalt oxide
  • Energy storage
  • Graphite
  • Nanocomposites

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Controlling morphology and enhancing electrochemical performance of cobalt oxide by addition of graphite. / Fei, Ling; Lin, Qianglu; Yuan, Bin; Naeemi, Maitham; Xu, Yun; Li, Yuling; Deng, Shuguang; Luo, Hongmei.

In: Materials Letters, Vol. 98, 2013, p. 59-62.

Research output: Contribution to journalArticle

Fei, Ling ; Lin, Qianglu ; Yuan, Bin ; Naeemi, Maitham ; Xu, Yun ; Li, Yuling ; Deng, Shuguang ; Luo, Hongmei. / Controlling morphology and enhancing electrochemical performance of cobalt oxide by addition of graphite. In: Materials Letters. 2013 ; Vol. 98. pp. 59-62.
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AU - Deng, Shuguang

AU - Luo, Hongmei

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