TY - JOUR
T1 - Molecular Storage of Ozone in a Clathrate Hydrate
T2 - An Attempt at Preserving Ozone at High Concentrations
AU - Nakajima, Takahiro
AU - Kudo, Taisuke
AU - Ohmura, Ryo
AU - Takeya, Satoshi
AU - Mori, Yasuhiko H.
PY - 2012/11/5
Y1 - 2012/11/5
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84868374672&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84868374672&partnerID=8YFLogxK
U2 - 10.1371/journal.pone.0048563
DO - 10.1371/journal.pone.0048563
M3 - Article
C2 - 23139794
AN - SCOPUS:84868374672
SN - 1932-6203
VL - 7
JO - PLoS One
JF - PLoS One
IS - 11
M1 - e48563
ER -