Ultrasound assisted synthesis of nano-sized lithium cobalt oxide

Kwang Heon Kim, Kwang Bum Kim

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

Nano-sized HT-LiCoO2 powders were prepared by sonochemical synthesis in an aqueous solution of lithium hydroxide containing cobalt hydroxide at ∼80 °C without any further heat treatment at high temperature. The effects of the LiOH concentration, oxidation conditions, ultrasound irradiation time and temperature on the formation of the nano-sized HT-LiCoO2 phase were investigated. The formation of the HT-LiCoO2 phase was confirmed by X-ray diffraction and Raman spectroscopy. The TEM images showed the presence of HT-LiCoO2 aggregates with a mean particle diameter of ∼20 nm. The reaction mechanism of the ultrasound assisted synthesis of nano-sized LiCoO2 was proposed on the basis of the XRD, X-ray absorption spectroscopy analysis and TEM observation of the reaction products taken during the course of the synthesis.

Original languageEnglish
Pages (from-to)1019-1025
Number of pages7
JournalUltrasonics Sonochemistry
Volume15
Issue number6
DOIs
Publication statusPublished - 2008 Sep

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Environmental Chemistry
  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics
  • Organic Chemistry
  • Inorganic Chemistry

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