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Hierarchical structured graphene/metal oxide/porous carbon composites as anode materials for lithium-ion batteries

Research output: Contribution to journalArticle

Author(s)

Rong Guo, Wenbo Yue, Yu Ren, Wuzong Zhou

School/Research organisations

Abstract

As a novel anode material for lithium-ion batteries, CeO2 displays imperceptible volumetric and morphological changes during the lithium insertion and extraction processes, and thereby exhibits good cycling stability. However, the low theoretical capacity and poor electronic conductivity of CeO2 hinder its practical application. In contrast, Co3O4 possesses high theoretical capacity, but undergoes huge volume change during cycling. To overcome these issues, CeO2 and Co3O4 nanoparticles are formed inside the pores of CMK-3 and display various electrochemical behaviors due to the different morphological structures of CeO2 and Co3O4 within CMK-3. Moreover, the graphene/metal oxide/CMK-3 composites with a hierarchical structure are then prepared and exhibit better electrochemical performances than metal oxides with or without CMK-3. This novel synthesis strategy is hopefully employed in the electrode materials design for Li-ion batteries or other energy conversion and storage devices.

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Details

Original languageEnglish
Pages (from-to)102-110
JournalMaterials Research Bulletin
Volume73
Early online date28 Aug 2015
DOIs
Publication statusPublished - Jan 2016

    Research areas

  • A. composites, B. chemical synthesis, D. electrochemical properties

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