固体の大気エアロゾル表面における不均一反応 Heterogeneous Reactions on Solid Aerosol Surfaces in the Atmosphere

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著者

    • 須佐 秋生 SUSA Akio
    • 東京大学大学院工学系研究科化学システム工学專攻 Department of Chemical System Engineering, School of Engineering, The University of Tokyo

抄録

Progresses and problems of laboratory studies of heterogeneous processes on solid aerosol surfaces are presented in this paper. Heterogeneous reactions on solid aerosol surfaces have attracted great attention because of its ability to affect the concentrations of OH radicals and ozone in the troposphere. Laboratory studies have been extensively carried out to measure the uptake coefficient of trace gases on surrogate surfaces of mineral dust aerosols. The uptake coefficients or the reaction probabilities are necessary in estimating the mass transfer processes around aerosols. Results of model simulations support the importance of laboratory studies of heterogeneous processes. The observed uptake coefficient should be corrected for the physical structures and surface area of the samples. As an example, recent papers reporting the reactions of nitrogen dioxide on solid surfaces are reviewed. Based on the recent studies, thin water films on solid aerosol particles may be quite important in the chemistry of the boundary layer in urban areas. Although heterogeneous reaction mechanisms have been proposed in some specific conditions, an understanding is required on the reaction mechanisms and reaction probabilities of nitrogen dioxide with coexistence water in a systematic manner. Finally problems and future directions on laboratory studies of heterogeneous aerosol chemistry are summarized.

収録刊行物

  • エアロゾル研究 = Journal of aerosol research  

    エアロゾル研究 = Journal of aerosol research 22(3), 187-195, 2007-09-20 

    日本エアロゾル学会

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各種コード

  • NII論文ID(NAID)
    10021918360
  • NII書誌ID(NCID)
    AN10041511
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    09122834
  • NDL 記事登録ID
    8924499
  • NDL 雑誌分類
    ZP5(科学技術--化学・化学工業--化学工学)
  • NDL 請求記号
    Z17-1062
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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