Evolution of Co3O4 Nanocubes through Stepwise Oriented Attachment

Keishi Tsukiyama, Mihiro Takasaki, Yuya Oaki, Hiroaki Imai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Uniformly sized building units are generally required to construct highly elaborate architectures over a wide range. Defined nanocubes of Co3O4 evolved from deformed precursor nanograins 2-5 nm in diameter through direct oriented attachment in a nonpolar medium. Uniformly sized primary nanocubes -8 nm on a side with {100} faces were formed by adjusting the coverage of the oxide nanograins with oleic acid. Larger nanocubes 20-40 nm on a side were produced with further direct oriented attachment of the primary nanocubes. Ordered arrays, such as superlattices, were found to be constructed by the indirect oriented attachment of the primary and larger nanocubes covered with organic molecules.

Original languageEnglish
Pages (from-to)8025-8030
Number of pages6
JournalLangmuir
Volume35
Issue number24
DOIs
Publication statusPublished - 2019 Jun 18

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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