https://scholars.lib.ntu.edu.tw/handle/123456789/408500
標題: | Conductivity of a concentrated cylindrical dispersion | 作者: | Lee E. Chih M.-H. Hsu J.-P. |
公開日期: | 2001 | 卷: | 17 | 期: | 6 | 起(迄)頁: | 1821-1825 | 來源出版物: | Langmuir | 摘要: | The conductivity of a concentrated cylindrical dispersion is evaluated theoretically. We show that the scaled conductivity (K*/K ¡Û) approaches a constant value as £e£\ ¡÷ 0, which depends on the scaled surface potential £p r, where K*, K ¡Û, £e, and £\ are the apparent conductivity, the conductivity of an infinitely dilute dispersion, the reciprocal Debye length, and the radius of a cylinder. If £e£\ ¡÷ ¡Û K*/K ¡Û also approaches a constant, but it is independent of £p r. The effect of £\ (-valence of counterions/valence of co-ions) on K*/K ¡Û is found to be significant if £e£\ is small and becomes negligible as £e£\ ¡÷ ¡Û. Also, if £\ > 1, K*/K ¡Û decreases monotonically with the increase in £e£\, and the reverse is true if £\ < 1. If £\ > 1, K*/K ¡Û increases monotonically with £p r, and the larger the £\ the faster the rate of increase. Also, if £\ < 1, K*/K ¡Û has a local minimum as £p r varies. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408500 | ISSN: | 07437463 | DOI: | 10.1021/la0006566 |
顯示於: | 化學工程學系 |
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