Developing affordable, robust, and selective CO2 electroreduction technologies is crucial to address concerns about rising CO2 emissions. Pulsed potential electrochemical CO2 reduction (p-eCO2R) has emerged as a simple and responsive knob to increase electrolyzer durability and improve product selectivity. In this review, we summarize the recent findings of p-eCO2R on copper electrodes as a function of applied potential and pulse duration. We discuss how pulse methods present scientific and technological opportunities for electrochemical technologies beyond p-eCO2R, in particular, ones involving competing reactions or electrode deactivation.

开发负担得起的、强大的和选择性的 CO2 电还原技术对于解决对 CO2 排放量增加的担忧至关重要。脉冲电位电化学 CO2 还原 (p-eCO2R) 已成为一种简单且响应迅速的旋钮，可提高电解槽的耐用性并提高产品选择性。在这篇综述中，我们总结了铜电极上 p-eCO2R 的最新发现，作为外加电位和脉冲持续时间的函数。我们讨论了脉冲方法如何为 p-eCO2R 以外的电化学技术提供科学和技术机会，特别是涉及竞争反应或电极失活的技术。