大気圧O2中の微量H2Oによるイオン移動度及びイオン・分子反応への影響

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2022/10/01

タイトル(英語): Effects of a Small Amount of H2O on Negative Ion Mobility and Ion-Molecule Reactions in O2 at Atmospheric Pressure

著者名: 奥山　由（苫小牧工業高等専門学校），安沢　友花（苫小牧工業高等専門学校），菅原　広剛（北海道大学大学院情報科学研究院）

著者名(英語): Yui Okuyama (National Institute of Technology, Tomakomai College), Yuka Yasuzawa (National Institute of Technology, Tomakomai College), Hirotake Sugawara (Graduate School of Information Science and Technology, Hokkaido University)

キーワード: イオン移動度，大気圧，負イオン，イオン・分子反応，反応速度定数_x000D_　　ion mobility，atmospheric pressure，negative ions，ion-molecule reactions，rate coefficients

要約(英語): In this study, we have measured the negative ion mobility in O2 at high pressures with a little amount of H2O concentration between 15 and 17000 ppb. After that, we carried out a Monte Carlo simulation using mobility of electrons, that of the ions obtained in the measurements, and rate coefficients of ion-molecule reactions. As the results, the mobility value 2.39 cm2/V・s of O4- is obtained in ultrahigh purity O2 of which the H2O concentration is between 15 to 100 ppb. Moreover, the mobility decreases with the H2O concentrations at which the ion species are considered to be O2-・(H2O)n (n = 1, 2, 3). Then, we compared the experimental result with that of the simulation and estimated the ion mobility and rate coefficients of ion molecule reactions. Simulation results using estimated values of the ion mobility and rate coefficients agree well with measurement results.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.142 No.10 （2022）

本誌掲載ページ: 397-405 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/142/10/142_397/_article/-char/ja/