An empirical model approach to gas evolution reactions in a centrifugal field
An empirical model approach to gas evolution reactions in a centrifugal field
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DOI：
10.1016/s0022-0728(03)00078-0
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发表时间：
2003-03-13
影响因子：
4.5
通讯作者：
Scott, K
中科院分区：
文献类型：
--
作者：
Cheng, H;Scott, K
离心场的应用已被证明可以强化水的电解过程。线性扫描伏安法和稳态测量的数据表明，与静止条件相比，在190℃和80℃的相对加速度下，阳极电位降低了0.18V，阴极电位降低了0.20V，欧姆电压降低了0.25V，电池电压降低了0.45V。电池电压的节省以及由此产生的能量消耗明显大于旋转电池所需的相对较小的能量。上述观察结果是使用经验性方法建模的。该模型将电池性能与相对加速率关联起来，并考虑了KOH浓度和电池温度的影响。实验数据得到了令人满意的经验关联式。(C)2003 Elsevier Science B.V.保留所有权利。
The application of a centrifugal field has been demonstrated to intensify the water electrolysis process. Data collected from the linear sweep voltammetry and steady-state measurements showed that an anode potential reduction of up to 0.18 V, a cathode potential reduction of up to 0.20 V, an ohmic voltage reduction of up to 0.25 V and a cell voltage reduction of up to 0.45 V at 300 mA cm(-2), were achieved at a relative acceleration rate of 190 and 80 degreesC, compared to those in stationary conditions. The saving in cell voltage, and thus energy consumption, are significantly larger than the relatively small amount of energy required to rotate the cell. The above observations were modelled using an empirical approach. The model correlated the cell performance to relative acceleration rate and considered the effects of the KOH concentration and the cell temperature. The experimental data were explained satisfactorily by the empirical correlations. (C) 2003 Elsevier Science B.V. All rights reserved.