Polarization and Overpotential Distribution in Fluidized-Bed Electrodes

Yang Bo and Yuan Quan(Dalian Institute of Chemical Physics; Academia Sinica)

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Polarization and Overpotential Distribution in Fluidized-Bed Electrodes

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- Polarization and Overpotential Distribution in Fluidized-Bed Electrodes
- CIESC Journal Issue 4, (1987)
- 作者机构：
  
  中国科学院大连化学物理研究所,中国科学院大连化学物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 1987，
  
  Published：25 December 1987
- 稿件说明：
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Yang Bo and Yuan Quan(Dalian Institute of Chemical Physics, Academia Sinica). Polarization and Overpotential Distribution in Fluidized-Bed Electrodes[J]. CIESC Journal, 1987, (4).
DOI：

Yang Bo and Yuan Quan(Dalian Institute of Chemical Physics, Academia Sinica). Polarization and Overpotential Distribution in Fluidized-Bed Electrodes[J]. CIESC Journal, 1987, (4). DOI：

摘要

文中解析了流化床电极的一维模型.得到了电荷传递系数为1/3

1/2

2/3

电极反应为活化控制时过电位分布的确切解.还得到了电荷传递系数取任意值且无因次电阻参数较大时

电极反应分别处于活化控制、扩散控制、混合控制或伴有副反应等各种情况下的极化方程.上述结果亦适用于全浸没立体电极.还讨论了参数对电流效率的影响.

Abstract

An one-dimensional mathematical model for fluidized-bed electrode

is presented Exact solution in closed from for over potential distribution are obtained for a single oxidation-reduction reaction under activated control with charge transfer coefficients of 1/3

1/2

2/3 respectively. Polarization equations for reactions under activated control

diffusion control

mixed control and/or with side reactions occurring are derived for random charge transfer coefficients accompanied by rather high dimen-sionless resistance parameter. Results thus obtained may be used for the description of behaviours in flooded porous electrodes and tubular electrodes. Parametric effects on current efficiency was discussed.

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