A study on the Ni formation by reduction of NiO nano crystals (NiO 나노 결정의 환원 반응에 의한 Ni 형성 거동에 관한 연구)

Chang-Sam Kim (김창삼); Kang, Seung-Min (강승민)

A study on the Ni formation by reduction of NiO nano crystals

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2009, 19(5), pp.246-250
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering

Chang-Sam Kim ¹, Kang, Seung-Min ²

¹한국과학기술연구원
²한서대학교

Accredited

ABSTRACT

The Ni formation behavior from the reduction of NiO nano crystals in the H2/N2 gas mixtures. The NiO nano crystals were synthesized by heat-treating nickel nitrate(Ni(NO3)2·6H2O) in the air at 500℃, and had an octahedral shape and the particle size of 200~500 nm. The NiO nano-crystals had well-developed (111) planes which is hardly formed in normal synthetic conditions. The reduction process was carried out at 300 and 600℃ for 15 and 60 minutes, respectively. When the NiO nano-crystals were reduced at 300℃, the Ni particles sustained the same octahedral shape as NiO, while Ni particles were to agglomerate at 600℃.

KEYWORDS

NiO nano-crystals, Ni particles, Reduction, Particle shape, Growth behavior

Citation status

* References for papers published after 2023 are currently being built.

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