MACROSIGHT REACTION RATES AND DISTRIBUTIONS OFPOTENTIAL OF ELECTROLYTES IN FOAMED METAL ELECTRODES

LI Baoshan; NIU Yushu; ZHAI Yuchun; QUAN Mingxiu; HU Zhuangqi

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MACROSIGHT REACTION RATES AND DISTRIBUTIONS OFPOTENTIAL OF ELECTROLYTES IN FOAMED METAL ELECTRODES

更新时间：2025-12-10

- MACROSIGHT REACTION RATES AND DISTRIBUTIONS OFPOTENTIAL OF ELECTROLYTES IN FOAMED METAL ELECTRODES
- CIESC Journal Issue 7, (2001)
- 作者机构：
  
  1. 北京化工大学理学院
  2. 中国科学院金属研究所快速凝固非平衡合金国家重点实验室
  3. 东北大学冶金与材料学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 July 2001，
  
  Published：25 July 2001
- 稿件说明：
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LI Baoshan, NIU Yushu, ZHAI Yuchun, et al. MACROSIGHT REACTION RATES AND DISTRIBUTIONS OFPOTENTIAL OF ELECTROLYTES IN FOAMED METAL ELECTRODES[J]. CIESC Journal, 2001, (7).
DOI：

LI Baoshan, NIU Yushu, ZHAI Yuchun, et al. MACROSIGHT REACTION RATES AND DISTRIBUTIONS OFPOTENTIAL OF ELECTROLYTES IN FOAMED METAL ELECTRODES[J]. CIESC Journal, 2001, (7). DOI：

摘要

研究了发泡金属电极的性质

得出了描述发泡金属电极床层中宏观反应速率、反应速率随时间的变化、床层中电解液的电势分布方程式 .以K3Fe(CN) 6的阴极还原反应为研究体系

采用垂直型隔膜电解槽对上述方程进行了实验验证

测定了发泡镍、发泡铜作阴极时床层中电解液的电势分布

研究了电解质进口浓度、电解液流速、电解液有效电导率、槽电压、电极尺寸等因素对电解液电势分布的影响

模型结果与实验结果符合较好

Abstract

The characteristics of foamed metal electrodes are investigated to study electric potential distribution in electrolytes on foamed metal cathodes and the mathematical models are proposed.The equations of macro-reaction rates and the changes of reaction rates with electrolysis time are obtained.The electrolytic reduction of Fe(CN) 3- 6 on foamed metal cathodes is studied and the electric potential distribution in the electrolytes on foamed nickel and foamed copper cathodes is measured.The effects of concentration

flow rate

conductance of electrolyte

cell voltage

cathode dimension on potential distribution are studied. The results show that the potential distribution tends to be uniform with decreasing cell voltage and decreasing flow rate and with increasing conductance of the electrolyte. As the thickness of the cathode ( x0) is fixed

potential distribution in the radial x -direction tends to be uniform with increasing height

of the cathode.As the height of the cathode is fixed

potential distribution in the flow direction ( y -direction) of the electrolyte is tends to be uniform with increasing thickness of the cathode.The general potential drop at the inlet is almost directly proportional to x 2 0

and at the separator membrane location potential distribution in the y -direction is least of all uniform.As x is fixed

the potentical distribution in the y -direction is nearly an exponential function of y .The results show that the mathematical models are validated by the experiments .

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