Effect of Configuration on Mass Transfer in a Filter-press Type Electrochemical Cell

›› 2008, Vol. 16 ›› Issue (2): 198-202.

Effect of Configuration on Mass Transfer in a Filter-press Type Electrochemical Cell

徐红^1,2, 黄卫民^1,2, 邢艳³, 林海波^1,2, 季洪海^1,2, 姜梅^1,2, 刘小波^1,2, 甘树才¹

1. College of Chemistry, Jilin University, Changchun 130012, China;
2. Key Laboratory of Surface and Interface Chemistry of Jilin Province, Jilin University, Changchun 130012, China;
3. College of Chemistry, Northeast Normal University, Changchun 130024, China

收稿日期:2007-01-25 修回日期:2007-12-08 出版日期:2008-04-28 发布日期:2008-04-28
通讯作者: LIN Haibo,E-mail:lhb910@jlu.edu.cn
基金资助:
the National Natural Science Foundation of China(20573045,20843001);the "Tenth Five-Year" National Key Scientific and Technological Project(2004BA313B-17);the National High Technology Research and Development Pro-gram of China(2006AA06Z321)

Effect of Configuration on Mass Transfer in a Filter-press Type Electrochemical Cell

XU Hong^1,2, HUANG Weimin^1,2, XING Yan³, LIN Haibo^1,2, JI Honghai^1,2, JIANG Mei^1,2, LIU Xiaobo^1,2, GAN Shucai¹

1. College of Chemistry, Jilin University, Changchun 130012, China;
2. Key Laboratory of Surface and Interface Chemistry of Jilin Province, Jilin University, Changchun 130012, China;
3. College of Chemistry, Northeast Normal University, Changchun 130024, China

Received:2007-01-25 Revised:2007-12-08 Online:2008-04-28 Published:2008-04-28
Supported by:
the National Natural Science Foundation of China(20573045,20843001);the "Tenth Five-Year" National Key Scientific and Technological Project(2004BA313B-17);the National High Technology Research and Development Pro-gram of China(2006AA06Z321)

摘要/Abstract

摘要： Effect of configuration(structure of electrode,interelectrode gap,positions of inlet and outlet,volume of the cell and additional nets)on mass transfer characteristic of a filter-press type electrochemical cell has been studied.The mass transfer coefficients on the electrodes were obtained by using the well-known technique based on the determination of limiting diffusion current.It is found that mass transfer coefficients with mesh electrode are greater than that of with plate electrode.Mass transfer coefficient is decreased with interelectrode gap.While interelectrode gap achieved a certain value(7 mm),mass transfer coefficient is steady,no more declining.Mass transfer characteristic for different positions of inlet and outlet are different and dimensionless number groups correlated equations are obtained by experiment.Mass transfer characteristic is the best when inlet located on the top and outlet on the bottom of the cell respectively.While magnified the volume of the cell to eight times,mass transfer characteristic changes little.Mass transfer characteristic without nets is lower than that of with additional nets in the exit region,but higher than that of with additional nets in the entry region.

关键词: mass transfer characteristic, mass transfer coefficient, filter-press type electrochemical cell, limiting current

Abstract: Effect of configuration(structure of electrode,interelectrode gap,positions of inlet and outlet,volume of the cell and additional nets)on mass transfer characteristic of a filter-press type electrochemical cell has been studied.The mass transfer coefficients on the electrodes were obtained by using the well-known technique based on the determination of limiting diffusion current.It is found that mass transfer coefficients with mesh electrode are greater than that of with plate electrode.Mass transfer coefficient is decreased with interelectrode gap.While interelectrode gap achieved a certain value(7 mm),mass transfer coefficient is steady,no more declining.Mass transfer characteristic for different positions of inlet and outlet are different and dimensionless number groups correlated equations are obtained by experiment.Mass transfer characteristic is the best when inlet located on the top and outlet on the bottom of the cell respectively.While magnified the volume of the cell to eight times,mass transfer characteristic changes little.Mass transfer characteristic without nets is lower than that of with additional nets in the exit region,but higher than that of with additional nets in the entry region.

Key words: mass transfer characteristic, mass transfer coefficient, filter-press type electrochemical cell, limiting current

徐红, 黄卫民, 邢艳, 林海波, 季洪海, 姜梅, 刘小波, 甘树才. Effect of Configuration on Mass Transfer in a Filter-press Type Electrochemical Cell[J]. , 2008, 16(2): 198-202.

XU Hong, HUANG Weimin, XING Yan, LIN Haibo, JI Honghai, JIANG Mei, LIU Xiaobo, GAN Shucai. Effect of Configuration on Mass Transfer in a Filter-press Type Electrochemical Cell[J]. , 2008, 16(2): 198-202.

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Effect of Configuration on Mass Transfer in a Filter-press Type Electrochemical Cell

Effect of Configuration on Mass Transfer in a Filter-press Type Electrochemical Cell

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