Direct Hydrothermal Synthesis of Size-Controlled Co₃O₄ Nanocubes under Highly Condensed Conditions

• Kanie Kiyoshi

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Tsujikawa Yusuke

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Muramatsu Atsushi

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

Bibliographic Information

Other Title

• Direct Hydrothermal Synthesis of Size-Controlled Co₃O₄ Nanocubes under Highly Condensed Conditions

Abstract

Cobalt oxide (Co₃O₄) nanocubes with high crystallinity and a narrow size distribution have been synthesized in one pot process under highly condensed hydrothermal reactions using cobalt(II) nitrate (Co(NO₃)₂) and sodium hydroxide or tetramethylammonium hydroxide. The particle morphology was controlled to a cubic shape by change in the initial pH. The particle mean diameter was also gradually controlled by the change in the initial pH in the range from 18 nm to 66 nm. Co(OH)₂ hexagonal thin platelet particles were obtained as the predominant product when CoSO₄, CoCl₂, and Co(CH₃COO)₂ were used as the Co-source. The result indicated that oxidation ability of nitrate anions played an important role to obtain the Co₃O₄ nanocubes in the one pot process.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 58 (7), 1014-1019, 2017

  The Japan Institute of Metals and Materials

Keywords

• cobalt oxide
• nanoparticle
• hydrothermal synthesis
• size control
• nanocube
• tetramethylammonium hydroxide

Details

• CRID: 1390282679229863808
• NII Article ID: 130006777003
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.m2017090
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 028315354
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028315354
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/58/7/58_M2017090/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed