One-Step Catalytic Synthesis of CuO/Cu2O in a Graphitized Porous C Matrix Derived from the Cu-Based Metal-Organic Framework for Li- and Na-Ion Batteries

A. Young Kim, Min Kyu Kim, Keumnam Cho, Jae Young Woo, Yongho Lee, Sung Hwan Han, Dong Jin Byun, Wonchang Choi, Joong Kee Lee

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

The hybrid composite electrode comprising CuO and Cu2O micronanoparticles in a highly graphitized porous C matrix (CuO/Cu2O-GPC) has a rational design and is a favorable approach to increasing the rate capability and reversible capacity of metal oxide negative materials for Li- and Na-ion batteries. CuO/Cu2O-GPC is synthesized through a Cu-based metal-organic framework via a one-step thermal transformation process. The electrochemical performances of the CuO/Cu2O-GPC negative electrode in Li- and Na-ion batteries are systematically studied and exhibit excellent capacities of 887.3 mAh g-1 at 60 mA g-1 after 200 cycles in a Li-ion battery and 302.9 mAh g-1 at 50 mA g-1 after 200 cycles in a Na-ion battery. The high electrochemical stability was obtained via the rational strategy, mainly owing to the synergy effect of the CuO and Cu2O micronanoparticles and highly graphitized porous C formed by catalytic graphitization of Cu nanoparticles. Owing to the simple one-step thermal transformation process and resulting high electrochemical performance, CuO/Cu2O-GPC is one of the prospective negative active materials for rechargeable Li- and Na-ion batteries.

Original languageEnglish
Pages (from-to)19514-19523
Number of pages10
JournalACS Applied Materials and Interfaces
Volume8
Issue number30
DOIs
Publication statusPublished - 2016 Aug 3

Keywords

  • copper oxide
  • graphitized porous C
  • Li-ion secondary battery
  • metal-organic framework
  • Na-ion secondary battery
  • one-step catalytic graphitization process

ASJC Scopus subject areas

  • Materials Science(all)

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