Directed Cu-doped h-CoO nanorods: Elucidation of the growth mechanism and application to lithium-ion batteries

Ki Min Nam, Young Cheol Choi, Sung Chul Jung, Yong Il Kim, Mi Ru Jo, Se Ho Park, Yong Mook Kang, Young Kyu Han, Joon T. Park

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Thermal decomposition of Co(acac) 3 and Cu(acac) 2 in benzylamine leads to the formation of [100] directed Cu-doped h-CoO nanorods, which are very stable in an aqueous solution. The formation mechanism of the [100] directed Cu-doped h-CoO nanorods is fully elucidated by using first-principles calculations, demonstrating that Cu-doping not only changes the growth direction but also enhances the stability of the nanorods significantly. Evaluation of the electrochemical performance of Cu-doped h-CoO nanorods shows high initial Coulombic efficiency and ultrahigh capacity with excellent cycling performance, indicating their suitability as an anode material for next generation lithium-ion batteries.

Original languageEnglish
Pages (from-to)473-477
Number of pages5
JournalNanoscale
Volume4
Issue number2
DOIs
StatePublished - 21 Jan 2012

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