一步合成介孔硫化钴（CoSx）在金属基底上作为有效的双功能电极用于整体水裂解
One-step synthesis of mesoporous Cobalt sulfides (CoSx) on the metal substrate as an efficient bifunctional electrode for overall water splitting
摘要：
基于过渡金属硫化物的电催化剂因其具有优异的析氢和析氧反应活性而在可再生能源领域受到越来越多的关注。迄今为止，人们已经做出了相当大的努力来改善这些催化剂的性能，但是忽视不适当的合成策略会导致催化剂的额外成本。本文提出了一种简便的一步阳极氧化法快速制备硫化钴薄膜。不需要任何高温或长时间的处理，介孔CoSx在几分钟内就可以在金属基底上自生长。因此，作为阳极CoSx需要102 mV的HER和284 mV的OER的过电位，以实现在碱性溶液中的电流密度为10 mA m-2。此外，串联双功能作为阳极CoSx表现出所需的电池电压为1.64 V的碱性溶液中的整体水裂解，超过了大多数记录的钴基电催化剂。
英文摘要：
Electrocatalysts based on transition metal sulfides are drawing accelerating concerns in renewable energy research because of their intrinsically excellent activities towards both hydrogen evolution reaction and oxygen evolution reaction. To date, considerable efforts are made to improve the performance of these catalysts, but ignoring the improper synthesis strategy would incur additional cost to the catalyst. Herein, a convenient, one-step anodization method is developed for fast construction of cobalt sulfides. Without any high-temperature or long-time treatment, mesoporous CoSx is self-grown on the metal substrate in minutes. As a result, as-anodic CoSx requires overpotentials of 102 mV for HER and 284 mV for OER to achieve a current density of 10 mA m-2 in alkaline solution. Moreover, the tandem bifunctional as-anodic CoSx exhibits a required cell voltage of 1.64 V for overall water splitting in alkaline solution, exceeding most of the documented Co-based electrocatalysts.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
