Synthesis of iron-based nanoparticles from ferrocene by femtosecond laser irradiation: Suppression of the particle growth in a mixture of water and hexane

Yuki Horikawa, Takuya Okamoto, Takahiro Nakamura, Yuhei O. Tahara, Makoto Miyata, Shingo Ikeda, Kenji Sakota, Tomoyuki Yatsuhashi

Research output: Contribution to journalArticlepeer-review

Abstract

Iron-based nanoparticles show unique magnetic properties, and their syntheses from metal complex solution by pulsed lasers have been widely studied; however, the aggregation of nanoparticles is unavoidable in homogeneous solution. We report the production of water-dispersible iron-based nanoparticles in a mixture of water and ferrocene n-hexane solution by femtosecond laser irradiation without using any additive agents. The mean diameter of iron-based nanoparticles (ca. 7 nm) is independent on the concentration of ferrocene and laser irradiation time. We propose that hexane microdroplets dispersed in water act as reaction vessels and reduce the opportunity of aggregation of primary nanoparticles.

Original languageEnglish
Article number137504
JournalChemical Physics Letters
Volume750
DOIs
Publication statusPublished - 2020 Jul

Keywords

  • Laser-induced filaments
  • Oil-in-water system
  • Plasma
  • Stirring

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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