Development of Integrated Dry-Wet Synthesis Method for Metal Encapsulating Silicon Cage Superatoms of M@Si16 (M = Ti and Ta)

Hironori Tsunoyama, Hiroki Akatsuka, Masahiro Shibuta, Takeshi Iwasa, Yoshiyuki Mizuhata, Norihiro Tokitoh, Atsushi Nakajima

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Nanoclusters (NCs) of several to hundreds of atoms in size are prospective functional units for future nanomaterials originating in their unique, size-specific properties. To explore the field of NC-based materials science, the development of large-scale, size-exclusive synthesis methods is in high demand, as one can see from the successful evolution of fullerene science. We have developed a large-scale synthesis method for main group-based NC compounds by scaling up the clean dry-process with a high-power impulse magnetron sputtering. The 100 mg scale synthesis of binary NCs of M@Si16 (M = Ti and Ta) stabilized by poly(ethylene glycol) dimethyl ether enables us to characterize their structures by an array of methods, for example, mass spectroscopy, X-ray photoemission spectroscopy, Raman spectroscopy, and 29Si nuclear magnetic resonance. Spectroscopic evidence indicates that the M@Si16 NCs are the metal-encapsulating tetrahedral silicon-cage structure satisfying the 68 electrons, closed-electronic-shell superatom.

Original languageEnglish
Pages (from-to)20507-20516
Number of pages10
JournalJournal of Physical Chemistry C
Volume121
Issue number37
DOIs
Publication statusPublished - 2017 Sep 21

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encapsulating
Nanoclusters
Silicon
nanoclusters
Metals
silicon
synthesis
metals
Fullerenes
Materials science
materials science
Photoelectron spectroscopy
X ray spectroscopy
Nanostructured materials
Magnetron sputtering
Polyethylene glycols
fullerenes
Raman spectroscopy
impulses
glycols

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry

Cite this

Development of Integrated Dry-Wet Synthesis Method for Metal Encapsulating Silicon Cage Superatoms of M@Si16 (M = Ti and Ta). / Tsunoyama, Hironori; Akatsuka, Hiroki; Shibuta, Masahiro; Iwasa, Takeshi; Mizuhata, Yoshiyuki; Tokitoh, Norihiro; Nakajima, Atsushi.

In: Journal of Physical Chemistry C, Vol. 121, No. 37, 21.09.2017, p. 20507-20516.

Research output: Contribution to journalArticle

Tsunoyama, Hironori ; Akatsuka, Hiroki ; Shibuta, Masahiro ; Iwasa, Takeshi ; Mizuhata, Yoshiyuki ; Tokitoh, Norihiro ; Nakajima, Atsushi. / Development of Integrated Dry-Wet Synthesis Method for Metal Encapsulating Silicon Cage Superatoms of M@Si16 (M = Ti and Ta). In: Journal of Physical Chemistry C. 2017 ; Vol. 121, No. 37. pp. 20507-20516.
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