It is of desirability to prepare in situ self‐supporting electrocatalysts not only to meet application requirements but also to simplify the production process of working electrodes. In this work, oxygen‐containing free‐standing carbon cloth with abundant pores (e‐CC−H₂) has been obtained through a facile two‐step electrochemical oxidation and hydrogen etching method. Compared to the previous activation strategies of carbon cloth (such as chemical activation), this method has the advantages of simplicity, time‐saving, low‐cost and energy‐saving. Benefiting from the abundance of defects and oxygen‐containing functional groups that are active sites for oxygen evolution reaction, the obtained e‐CC−H₂ shows excellent electrocatalytic activity, with a low overpotential of 350 mV at a current density of 10 mA cm⁻², a low Tafel slope (127 mV dec⁻¹) and stable electrochemical activity. This strategy paves the way for the application of functionalized and flexible materials in the field of electrochemical energy storage.

中文翻译：

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超快活化策略可显着增强商品碳布的电催化氧分解反应和总水分解

期望就地制备自支撑电催化剂不仅要满足应用要求，而且要简化工作电极的生产过程。在这项工作中，通过简便的两步电化学氧化和氢蚀刻方法获得了具有大量气孔（e-CC-H ₂）的含氧自立式碳布。与以前的碳布活化策略（如化学活化）相比，该方法具有简便，省时，低成本，节能的优点。受益于大量的缺陷和作为氧释放反应活性位点的含氧官能团，获得的e-CC-H ₂显示出优异的电催化活性，在10 mA cm ^-2的电流密度下具有350 mV的低过电势，低的Tafel斜率（127 mV dec ^-1）和稳定的电化学活性。该策略为功能化和柔性材料在电化学储能领域的应用铺平了道路。