Insight into the Superior Lithium Storage Properties of Ultrafine CoO Nanoparticles Confined in a 3 D Bimodal Ordered Mesoporous Carbon CMK-9 Anode

Diganta Saikia, Juti Rani Deka, Cheng Wei Lin, Yuan Hung Lai, Yu Hao Zeng, Po Hung Chen, Hsien Ming Kao, Yung Chin Yang

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Ultrafine CoO particles immobilized into the mesopores of three-dimensional cubic bimodal ordered mesoporous carbon CMK-9 is successfully prepared by using a combination of nanocasting and wet-impregnation methods. It is found that the cubic bimodal interconnected mesoporous framework of CMK-9 plays a crucial role in achieving the excellent electrochemical performances by assisting the rapid mass and charge transfer. Among the prepared nanocomposites, CoO(10)@CMK-9 delivers a discharge capacity of 830 mAh g−1 after 200 cycles at a current density of 100 mA g−1 in lithium-ion batteries. At a higher current density of 1000 mA g−1, the anode presents an outstanding discharge capacity of 636 mAh g−1 after 200 cycles. In sodium-ion batteries, the anode provides a discharge capacity of 296 mAh g−1 after 250 cycles at a current density of 100 mA g−1. The remarkable performances of CoO(10)@CMK-9 demonstrate the promising potentials of the nanocomposite as the anode for rechargeable batteries.

Original languageEnglish
Pages (from-to)2952-2965
Number of pages14
JournalChemSusChem
Volume13
Issue number11
DOIs
StatePublished - 8 Jun 2020

Keywords

  • cobalt oxide
  • lithium-ion batteries
  • nanocomposites
  • ordered mesoporous carbon
  • sodium-ion batteries

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