CO<sub>2</sub> Formation Yields from Different States of CO Adsorbed on Amorphous Solid Water under 157 nm Photoirradiation

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Author(s)

    • Matsuda Shohei
    • Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
    • Yamazaki Motoki
    • Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
    • Harata Akira
    • Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
    • Yabushita Akihiro
    • Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

Abstract

<p>There are two different adsorption states of CO on amorphous solid water (ASW): one adsorption state consists of CO interacting with non-hydrogen-bonded (dangling) OH, while the other consists of CO interacting with bonded OH. Photoirradiation onto ASW at 157 nm induces CO<sub>2</sub> formation through the reaction of CO with OH, where OH originates from the photodissociation of H<sub>2</sub>O ice. The preferential formation of CO<sub>2</sub> would explain the missing infrared CO band in the observation of interstellar ice particles.</p>

Journal

  • Chemistry Letters

    Chemistry Letters 47(4), 468-471, 2018

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130006638909
  • Text Lang
    ENG
  • ISSN
    0366-7022
  • Data Source
    J-STAGE 
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