Preparation of solid-solution type Fe-Co nanoalloys by synchronous deposition of Fe and Co using dual arc plasma guns

Masaaki Sadakiyo, Minako Heima, Tomokazu Yamamoto, Syo Matsumura, Masashi Matsuura, Satoshi Sugimoto, Kenichi Kato, Masaki Takata, Miho Yamauchi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We succeeded in the efficient preparation of well-dispersed Fe-Co nanoalloys (NAs) using the arc plasma deposition method. Synchronous shots of dual arc plasma guns were applied to a carbon support to prepare the solid-solution type Fe-Co NAs having an approximately 1 : 1 atomic ratio. The alloy structures with and without a reductive thermal treatment under a hydrogen atmosphere were examined using X-ray powder diffraction, scanning transmission electron microscopy (STEM) combined with energy-dispersive X-ray analysis, high resolution STEM, and magnetic measurements, suggesting that highly crystalline spherical particles of ordered B2-type Fe-Co NAs form by the thermal treatment of the deposited grains.

Original languageEnglish
Pages (from-to)15764-15768
Number of pages5
JournalDalton Transactions
Volume44
Issue number36
DOIs
Publication statusPublished - Aug 10 2015

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Plasma guns
Solid solutions
Heat treatment
Transmission electron microscopy
Plasma deposition
Scanning electron microscopy
Energy dispersive X ray analysis
Magnetic variables measurement
X ray powder diffraction
Hydrogen
Carbon
Crystalline materials

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

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Preparation of solid-solution type Fe-Co nanoalloys by synchronous deposition of Fe and Co using dual arc plasma guns. / Sadakiyo, Masaaki; Heima, Minako; Yamamoto, Tomokazu; Matsumura, Syo; Matsuura, Masashi; Sugimoto, Satoshi; Kato, Kenichi; Takata, Masaki; Yamauchi, Miho.

In: Dalton Transactions, Vol. 44, No. 36, 10.08.2015, p. 15764-15768.

Research output: Contribution to journalArticle

Sadakiyo, Masaaki ; Heima, Minako ; Yamamoto, Tomokazu ; Matsumura, Syo ; Matsuura, Masashi ; Sugimoto, Satoshi ; Kato, Kenichi ; Takata, Masaki ; Yamauchi, Miho. / Preparation of solid-solution type Fe-Co nanoalloys by synchronous deposition of Fe and Co using dual arc plasma guns. In: Dalton Transactions. 2015 ; Vol. 44, No. 36. pp. 15764-15768.
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