Polystyrene-templated aerosol synthesis of MoS2-amorphous carbon composite with open macropores as battery electrode

Seung Ho Choi, Yun Chan Kang

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

MoS2-amorphous carbon (MoS2-AC) composite microspheres with macroporous structure were fabricated by one-pot spray pyrolysis. Single- or few-layered MoS2 were uniformly dispersed and oriented in random directions in the amorphous carbon microsphere with macropores sizes between 50 and 90 nm. The macroporous microspheres having a high contact area with liquid electrolyte exhibited overall superior Li- and Na-ion storage properties compared with those of the dense microspheres. After 250 charge/discharge cycles at a current density of 1.5 Ag-1, the discharge capacities of the MoS2-AC microspheres with dense and macroporous structures for Li-ion storage were 694 and 896 mAhg-1, respectively. In the case of Naion storage, discharge capacities of 336 and 425 mAhg-1 were achieved for the dense and macroporous microspheres, respectively, after 100 cycles at 0.3 Ag-1.

Original languageEnglish
Pages (from-to)2260-2267
Number of pages8
JournalChemSusChem
Volume8
Issue number13
DOIs
Publication statusPublished - 2015 Jul 1

Keywords

  • Anodes
  • Batteries
  • Carbon
  • Composites
  • Metal sulfide

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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