教師資料查詢 | 類別: 期刊論文 | 教師: 曾琇瑱 Tseng Shio-jenn (瀏覽個人網頁)

標題:Ionic current in a pH-regulated nanochannel filled with multiple ionic species
學年103
學期1
出版(發表)日期2014/11/01
作品名稱Ionic current in a pH-regulated nanochannel filled with multiple ionic species
作品名稱(其他語言)
著者Tseng, Shiojenn; Tai, Yi-Hsuan; Hsu, Jyh-Ping
單位淡江大學數學學系
出版者Heidelberg: Springer
著錄名稱、卷期、頁數Microfluidics and Nanofluidics 17(5), pp.933-941
摘要Considering recent widespread applications in nanofluidics, we analyze the ionic current in a pH-regulated nanochannel, using an aqueous NaCl solution in an SiO2 nanochannel with pH adjusted by HCl and NaOH as an example. The model assumed is closer to reality than that in previous analyses, where the channel surface is maintained either at constant potential or constant charge, and only ionic species coming from background salt are considered. The electrical potential, velocity distribution, and ionic current under various conditions are examined by varying the pH, the density of surface functional groups, and the background salt concentration. We show that neglecting ionic species other than those from back ground salt might yield appreciable deviation in ionic current. The mechanisms involved in ionic transport are discussed, and we show that the effects of double-layer thickness and surface potential yield complicated and interesting behaviors in ionic current.
關鍵字
語言英文
ISSN1613-4982
期刊性質國外
收錄於SCI;
產學合作
通訊作者Hsu, Jyh-Ping
審稿制度
國別德國
公開徵稿
出版型式,紙本
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