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 journalArticlepeer-review

8 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)9763-9766
Number of pages4
JournalJournal of Physical Chemistry A
Volume112
Issue number40
DOIs
Publication statusPublished - Oct 9 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

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