Abstract The electrodes made of polyaniline-activated carbon (PANI-AC) composite were reported to significantly improve the capacitive deionization (CDI) cell performance compared with the cell assembled using AC electrodes alone. In this study, we synthesized ion-exchange (–NH2+ and –SOH3−) PANI-AC composites, and assembled a CDI cell using them as electrodes. The performance of the ion-exchange PANI-AC cell was higher than that of the PANI-AC cell, and slightly higher than or at least comparable to that of membrane CDI cell (MCDI). The improved performance of the ion-exchange PANI-AC cell compared with the simple PANI-AC cell is attributed to the functional groups in the PANI chains that act similar to that of an ion-exchange membrane in MCDI cells.

中文翻译：

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用于电容去离子的离子交换聚苯胺-碳复合电极的合成

摘要 据报道，与单独使用 AC 电极组装的电池相比，由聚苯胺-活性炭 (PANI-AC) 复合材料制成的电极可显着提高电容去离子 (CDI) 电池性能。在本研究中，我们合成了离子交换（–NH2+ 和–SOH3-）PANI-AC 复合材料，并使用它们作为电极组装了 CDI 电池。离子交换PANI-AC电池的性能高于PANI-AC电池，略高于或至少与膜CDI电池（MCDI）相当。与简单的 PANI-AC 电池相比，离子交换 PANI-AC 电池的性能改进归因于 PANI 链中的官能团，其作用类似于 MCDI 电池中的离子交换膜。