Co3O4 Hollow Nanoparticles Embedded in Mesoporous Walls of Carbon Nanoboxes for Efficient Lithium Storage

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)19914-19918
Journal / PublicationAngewandte Chemie - International Edition
Volume59
Issue number45
Online published22 Jul 2020
Publication statusPublished - 2 Nov 2020
Externally publishedYes

Abstract

Confining nanostructured electrode materials in porous carbon represents an effective strategy for improving the electrochemical performance of lithium-ion batteries. Herein, we report the design and synthesis of hybrid hollow nanostructures composed of highly dispersed Co3O4 hollow nanoparticles (sub-20 nm) embedded in the mesoporous walls of carbon nanoboxes (denoted as H-Co3O4@MCNBs) as an anode material for lithium-ion batteries. The facile metal–organic framework (MOF)-engaged strategy for the synthesis of H-Co3O4@MCNBs involves chemical etching-coordination and subsequent two-step annealing treatments. Owing to the unique structural merits including more active interfacial sites, effectively alleviated volume variation, good and stable electrical contact, and easy access of Li+ ions, the H-Co3O4@MCNBs exhibit excellent lithium-storage performance in terms of high specific capacity, excellent rate capability, and cycling stability. © 2020 Wiley-VCH GmbH

Research Area(s)

  • cobalt oxides, hollow structures, lithium-ion batteries, metal–organic frameworks