O2中の負イオン移動度と不純物の影響

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: 2013/11/01

タイトル(英語): Negative Ion Mobility and Effects of Impurities in O2

著者名: 奥山　由（千葉工業大学），鈴木　進（千葉工業大学），伊藤　晴雄（千葉工業大学）

著者名(英語): Yui Okuyama (Chiba Institute of Technology), Susumu Suzuki (Chiba Institute of Technology), Haruo Itoh (Chiba Institute of Technology)

キーワード: 負イオン移動度，O2，高気圧，不純物，クラスターイオン　　negative ion mobility，O2，high pressure，impurity，cluster ion

要約(英語): In this study, we have measured negative ion mobility in high-purity O2 (99.9999%) and ultrahigh-purity O2 purified with a gas purifier to remove impurities in cylinder O2 (99.99995%) for the investigation on the effects of impurities. It is considered that negative ion mobility is strong affected by impurities such as N2, CO2 and H2O at high pressure including atmospheric pressure. However, mobility measurement at high pressure has carried out only a few researchers including our laboratory. Then, we have performed the measurement at atmospheric pressure. An interesting result was obtained from ultrahigh-purity O2 that is the reduced ion mobility increased to 2.39±0.03 cm2/V・s from the constant value of 2.31±0.03 cm2/V・s obtained in high-purity O2 at 2.83×10-2 ? E/N ? 5.31 Td. The difference of these values 2.31 and 2.39 cm2/V・s was attributed to the impurities that existed in the O2. The impurity is H2O contained in the cylinder O2 which led to a decrease in negative ion mobility. Other impurities such as N2 and CO2 are the main constituents of the atmosphere attached on the surfaces of the chamber and electrodes. They led to an increase of ion mobility at high E/N values exceeding 1.77 Td.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.133 No.11 （2013）

本誌掲載ページ: 578-584 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/133/11/133_578/_article/-char/ja/