物理化学学报 >> 2008, Vol. 24 >> Issue (03): 520-526.doi: 10.3866/PKU.WHXB20080330

研究简报 上一篇    下一篇

超重力强化氯碱电解反应

王明涌; 邢海青; 王志; 郭占成   

  1. 中国科学院过程工程研究所, 多相复杂系统国家重点实验室, 北京 100080; 北京科技大学, 循环与生态冶金教育部重点实验室, 北京 100083; 中国科学院研究生院, 北京 100049
  • 收稿日期:2007-10-31 修回日期:2007-12-10 发布日期:2008-03-10
  • 通讯作者: 郭占成 E-mail:guozc@home.ipe.ac.cn

Investigation of Chlor-Alkali Electrolysis Intensified by Super Gravity

WANG Ming-Yong; XING Hai-Qing; WANG Zhi; GUO Zhan-Cheng   

  1. State Key Laboratory ofMutiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, P. R. China; Key Laboratory of Ecological & Recycle Metallurgy, Ministry of Education, University of Science and Technology Beijing, Beijing 100083, P. R. China; 3Graduate University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2007-10-31 Revised:2007-12-10 Published:2008-03-10
  • Contact: GUO Zhan-Cheng E-mail:guozc@home.ipe.ac.cn

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摘要： 将超重力场应用到氯碱电解过程中, 采用线性扫描法、计时电流法和交流阻抗法研究了超重力对析氢反应和析氯反应的影响, 并进一步考察了氯碱电解槽电压随重力系数的变化规律. 结果表明, 超重力能够强化析氢反应和析氯反应的进行; 相对于常重力条件, 气泡更容易从电解液中溢出, 溶液电阻随重力系数增加而降低; 氯碱电解槽电压也随重力系数的增加而降低, 并且电流密度越大, 槽电压降低的程度越大.

关键词: 超重力, 氯碱电解, 析氢反应, 欧姆电阻

Abstract: The super gravity field was applied to chlor-alkali electrolysis. The effects of super gravity on hydrogen evolution reaction (HER) and chlorine evolution reaction (CER) were investigated by linear sweep voltammetry, chronoamperometry and electrochemical impedance spectroscopy (EIS). The relationship between the cell voltages and gravity coefficient was studied. The results indicated that, the gas evolution reactions were intensified by super gravity and gas product was easier to spillover fromsolution. The solution resistance would reduce with the increase of gravity coefficient. The cell voltages also decreased with the increase of gravity coefficient, and the higher the current density, the larger the degree of cell voltage reduction.

Key words: Super gravity, Chlor-alkali electrolysis, Hydrogen evolution reaction, Ohmic resistance