Direct observation of OH radicals ejected from water ice surface in the photoirradiation of nitrate adsorbed on ice at 100 K

Akihiro Yabushita; Daisuke Iida; Tetsuya Hama; Masahiro Kawasaki

doi:10.1021/jp804622z

Direct observation of OH radicals ejected from water ice surface in the photoirradiation of nitrate adsorbed on ice at 100 K

Akihiro Yabushita, Daisuke Iida, Tetsuya Hama, Masahiro Kawasaki

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Production of gaseous OH radicals in the 248-350 nm photoirradiation of NO^3- doped on amorphous ice at 100 K was monitored directly by using resonance-enhanced multiphoton ionization. The translational energy distribution of the OH product was represented by a Maxwell-Boltzmann energy distribution with the translational temperature of 3250 ± 250 K. The rotational temperature was estimated to be 175 ± 25 K. We have confirmed that the OH production should be attributed to the secondary photolysis of H₂O₂ produced on ice surface on the basis of the results of controlled photolysis experiments for H₂O₂ doped on ice surface.

Original language	English
Pages (from-to)	9763-9766
Number of pages	4
Journal	Journal of Physical Chemistry A
Volume	112
Issue number	40
DOIs	https://doi.org/10.1021/jp804622z
Publication status	Published - Oct 9 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry

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10.1021/jp804622z

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title = "Direct observation of OH radicals ejected from water ice surface in the photoirradiation of nitrate adsorbed on ice at 100 K",

abstract = "Production of gaseous OH radicals in the 248-350 nm photoirradiation of NO3- doped on amorphous ice at 100 K was monitored directly by using resonance-enhanced multiphoton ionization. The translational energy distribution of the OH product was represented by a Maxwell-Boltzmann energy distribution with the translational temperature of 3250 ± 250 K. The rotational temperature was estimated to be 175 ± 25 K. We have confirmed that the OH production should be attributed to the secondary photolysis of H2O2 produced on ice surface on the basis of the results of controlled photolysis experiments for H2O2 doped on ice surface.",

author = "Akihiro Yabushita and Daisuke Iida and Tetsuya Hama and Masahiro Kawasaki",

year = "2008",

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T1 - Direct observation of OH radicals ejected from water ice surface in the photoirradiation of nitrate adsorbed on ice at 100 K

AU - Yabushita, Akihiro

AU - Iida, Daisuke

AU - Hama, Tetsuya

AU - Kawasaki, Masahiro

PY - 2008/10/9

Y1 - 2008/10/9

N2 - Production of gaseous OH radicals in the 248-350 nm photoirradiation of NO3- doped on amorphous ice at 100 K was monitored directly by using resonance-enhanced multiphoton ionization. The translational energy distribution of the OH product was represented by a Maxwell-Boltzmann energy distribution with the translational temperature of 3250 ± 250 K. The rotational temperature was estimated to be 175 ± 25 K. We have confirmed that the OH production should be attributed to the secondary photolysis of H2O2 produced on ice surface on the basis of the results of controlled photolysis experiments for H2O2 doped on ice surface.

AB - Production of gaseous OH radicals in the 248-350 nm photoirradiation of NO3- doped on amorphous ice at 100 K was monitored directly by using resonance-enhanced multiphoton ionization. The translational energy distribution of the OH product was represented by a Maxwell-Boltzmann energy distribution with the translational temperature of 3250 ± 250 K. The rotational temperature was estimated to be 175 ± 25 K. We have confirmed that the OH production should be attributed to the secondary photolysis of H2O2 produced on ice surface on the basis of the results of controlled photolysis experiments for H2O2 doped on ice surface.

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