A novel synthetic route of axCoO2 (A = Li or Na) through the ion-exchange reaction of CoOOH by the hydrothermal method

Tadashi Kanasaku, Taku Kouda, Koji Amezawa, Naoichi Yamamoto

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

LiCoO2 and NaxCoO2 were synthesized through the ion-exchange reaction of CoOOH using the hydrothermal method. The LiCoO2 single phase was obtained at 170°C for 12h in LiOH solutions (≥ 0.1mol/1)- The precipitated LiCoO2 had trigonal symmetry (R3̄m) corresponding to the high temperature phase of LiCoO2. The precipitate had a hexagonal plate-like shape and the size was between 100nm and 1.5nm Synthesis of NaxCoO2 single phase using the hydrothermal method was rather difficult, and NaxCoO2 was usually accompanied with secondary phase of Co3O4.

Original languageEnglish
Pages (from-to)171-176
Number of pages6
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume341
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes
Event10th International Symposium on Intercalation Compounds (ISIC 10) - Okasaki, Japan
Duration: 1999 May 301999 Jun 3

Keywords

  • Hydrothermal method
  • Intercalation
  • LiCoO
  • NaCoO
  • TEM

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'A novel synthetic route of a<sub>x</sub>CoO<sub>2</sub> (A = Li or Na) through the ion-exchange reaction of CoOOH by the hydrothermal method'. Together they form a unique fingerprint.

Cite this