氧阴极用于电解电渗析法制备硅溶胶研究

电化学（中英文） ›› 1996, Vol. 2 ›› Issue (4): 425-429.

氧阴极用于电解电渗析法制备硅溶胶研究

刘红梅,衣宝廉

中国科学院大连化学物理研究所

收稿日期:1996-11-28 修回日期:1996-11-28 出版日期:1996-11-28 发布日期:1996-11-28

Porous Gas Diffusion Oxygen Cathode for Electrodialysis Process

Liu HongmeiPresent address: Liu Hongmei, Institute of Chemical Engineering of Union University, Beijing 100023 Yi Baolian

(Dalian Inst. of Chem. Phys., Academia Sinica Dalian 116012

Received:1996-11-28 Revised:1996-11-28 Published:1996-11-28 Online:1996-11-28

摘要/Abstract

摘要： 通过对氧阴极电解电渗析槽和析氢电解电渗析槽的槽电压、电流效率、能耗等的比较，说明在电化学法制备硅溶胶过程中，用氧阴极代替析氢电极可将电解电渗析过程返回到电渗析过程。在电流密度０～１００ｍＡ·ｃｍ－２范围内，槽电压降低０．８６～１．３Ｖ左右，可节约电能１６％左右，而其电流效率则基本上不受影响

关键词: 氧阴极, 电解电渗析, 硅溶胶

Abstract: In the process of producing silica sols by electrodialysis, with porous gas diffusion oxygen cathode instead of steel cathode, the cell voltage can be reduced 0.86～1.13 V,the power consumption of alkali silica sols (pH=9.5) is about cut down 16%, while the current efficiency has no changing. With porous gas diffusion oxygen cathode instead of steel cathode, the electrolysis electrodialysis process can be returned to electrodialysis process.

Key words: Oxygen cathode, Electrodialysis, Silica sols, Power consumption

中图分类号:

O646.541

刘红梅,衣宝廉. 氧阴极用于电解电渗析法制备硅溶胶研究[J]. 电化学（中英文）, 1996, 2(4): 425-429.

Liu HongmeiPresent address: Liu Hongmei, Institute of Chemical Engineering of Union University, Beijing 100023 Yi Baolian . Porous Gas Diffusion Oxygen Cathode for Electrodialysis Process[J]. Journal of Electrochemistry, 1996, 2(4): 425-429.

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