Adiponitrile (ADN) is an important chemical raw material used in the production of nylon 66 that can be synthesized from acrylonitrile (AN) through cathodic hydrodimerization. This is the first time that a rotating cylindrical electrode (RCE) has been used in the electrosynthesis of ADN. The RCE provides turbulence to promote the mass transfer of AN for ADN formation. This report studied the effects of geometric parameters, including electrode radii and length, on the selectivity, current efficiency, AN utilization, and yield. Among the selected cell geometric parameters, the cathode radius had a major effect, the electrode length had a strong effect, and the electrode spacing had a minor effect. Higher turbulence, due to a larger cathode radius, longer electrode length, and smaller electrode spacing, produced ADN more efficiently. The highest yield among the results was 0.33 g cm^–2 h^–1 with the highest current efficiency of 82% at a dimensionless time of 0.5 and a cathode rotation rate of 3000 rpm.

中文翻译：

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用旋转圆柱电极电合成己二腈

己二腈（ADN）是生产尼龙66的重要化工原料，可以由丙烯腈（AN）通过阴极加氢二聚反应合成。这是第一次将旋转圆柱电极 (RCE) 用于 ADN 的电合成。RCE 提供湍流以促进用于 ADN 形成的 AN 的传质。本报告研究了几何参数（包括电极半径和长度）对选择性、电流效率、AN 利用率和产量的影响。在选定的电池几何参数中，阴极半径影响较大，电极长度影响较大，电极间距影响较小。由于更大的阴极半径、更长的电极长度和更小的电极间距，更高的湍流更有效地产生了 ADN。^–2 h ^–1在 0.5 的无量纲时间和 3000 rpm 的阴极转速下具有 82% 的最高电流效率。