High rate capabilities induced by multi-phasic nanodomains in iron-substituted calcium cobaltite electrodes

Young Dae Ko, Jin Gu Kang, Kyung Jin Choi, Jae Gwan Park, Jae Pyoung Ahn, Kyung Yoon Chung, Kyung Wan Nam, Won Sub Yoon, Dong Wan Kim

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Two-dimensional (2-D) nanoplates of iron-substituted calcium cobaltite (Ca3Co3FeO9) are synthesized through a simple citrate-gel method. The lithium electroactivity of Ca3Co 3FeO9 demonstrates that this is an applicable active anode material. In this study, we focus on the reversible conversion process and internally multi-phasic, nanostructured character occurring in Ca 3Co3FeO9 nanoplates. Moreover, we demonstrate that in-situ formation of active/inactive nanocomposite improves the conversion reaction kinetics by accommodating the large volume changes during lithium uptake and removal, thereby achieving outstanding rate capabilities.

Original languageEnglish
Pages (from-to)1829-1835
Number of pages7
JournalJournal of Materials Chemistry
Volume19
Issue number13
DOIs
Publication statusPublished - 2009 Mar 24

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Fingerprint Dive into the research topics of 'High rate capabilities induced by multi-phasic nanodomains in iron-substituted calcium cobaltite electrodes'. Together they form a unique fingerprint.

  • Cite this

    Ko, Y. D., Kang, J. G., Choi, K. J., Park, J. G., Ahn, J. P., Chung, K. Y., Nam, K. W., Yoon, W. S., & Kim, D. W. (2009). High rate capabilities induced by multi-phasic nanodomains in iron-substituted calcium cobaltite electrodes. Journal of Materials Chemistry, 19(13), 1829-1835. https://doi.org/10.1039/b817120c