Molecular Storage of Ozone in a Clathrate Hydrate

An Attempt at Preserving Ozone at High Concentrations

Takahiro Nakajima, Taisuke Kudo, Ryo Ohmura, Satoshi Takeya, Yasuhiko H. Mori

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This paper reports an experimental study of the formation of a mixed O3+ O2+ CO2 hydrate and its frozen storage under atmospheric pressure, which aimed to establish a hydrate-based technology for preserving ozone (O3), a chemically unstable substance, for various industrial, medical and consumer uses. By improving the experimental technique that we recently devised for forming an O3+ O2+ CO2 hydrate, we succeeded in significantly increasing the fraction of ozone contained in the hydrate. For a hydrate formed at a system pressure of 3.0 MPa, the mass fraction of ozone was initially about 0.9%; and even after a 20-day storage at -25°C and atmospheric pressure, it was still about 0.6%. These results support the prospect of establishing an economical, safe, and easy-to-handle ozone-preservation technology of practical use.

Original languageEnglish
Article numbere48563
JournalPLoS One
Volume7
Issue number11
DOIs
Publication statusPublished - 2012 Nov 5

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Ozone
Hydrates
ozone
Atmospheric Pressure
atmospheric pressure
Atmospheric pressure
Technology
frozen storage
Pressure
methodology

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Molecular Storage of Ozone in a Clathrate Hydrate : An Attempt at Preserving Ozone at High Concentrations. / Nakajima, Takahiro; Kudo, Taisuke; Ohmura, Ryo; Takeya, Satoshi; Mori, Yasuhiko H.

In: PLoS One, Vol. 7, No. 11, e48563, 05.11.2012.

Research output: Contribution to journalArticle

Nakajima, Takahiro ; Kudo, Taisuke ; Ohmura, Ryo ; Takeya, Satoshi ; Mori, Yasuhiko H. / Molecular Storage of Ozone in a Clathrate Hydrate : An Attempt at Preserving Ozone at High Concentrations. In: PLoS One. 2012 ; Vol. 7, No. 11.
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