Oxygen evolution reaction (OER) is of great importance in splitting water. However, the sluggish OER kinetics at the anode severely hinders the H2 evolution at the cathode which is a crucial procedure for energy storage. Herein, we report the synthesis of a new OER catalyst of Co(OH)x(WO[Formula: see text] via a one-step hydrothermal method, where the incorporation of WO[Formula: see text] as a condenser greatly enhanced the electrocatalytic activity of Co(OH)2 toward OER. Moreover, the introduction of mesoporous carbon (MC) further improves the electrocatalytic performance of Co(OH)x(WO[Formula: see text] by forming the nanocomposites of Co(OH)x(WO[Formula: see text]/MC. The synergism between Co(OH)2 and WO[Formula: see text] and the synergistic catalytic effect of Co(OH)x(WO[Formula: see text] and MC majorly contributed to the apparently enhanced electrocatalysis of Co(OH)x(WO[Formula: see text]/MC toward OER. This work provides an efficient strategy to improve the electrocatalytic activity of Co(OH)2 by introducing WO[Formula: see text] and forming nanocomposites between Co(OH)x(WO[Formula: see text] and MC for low-cost, convenient and highly efficient water oxidation.

中文翻译：

---

使用 Co(OH)x(WO4)y/介孔碳纳米复合材料对析氧进行出色的电催化

析氧反应 (OER) 在分解水方面非常重要。然而，阳极处缓慢的 OER 动力学严重阻碍了 H2阴极的演化，这是储能的关键过程。在此，我们报道了 Co(OH) 的新型 OER 催化剂的合成。X（WO[公式：见正文]通过一步水热法，其中加入WO[公式：见正文]作为冷凝器极大地增强了Co（OH）的电催化活性2朝向OER。此外，介孔碳（MC）的引入进一步提高了Co（OH）的电催化性能X（WO[公式：见正文] 通过形成 Co(OH) 的纳米复合材料X(WO[公式：见正文]/MC。Co(OH)2和WO[分子式：见正文]与Co(OH)的协同催化作用X（WO[公式：见正文] 和 MC 主要有助于明显增强 Co(OH) 的电催化X（WO[公式：见正文]/MC 对 OER。这项工作提供了一种有效的策略来提高 Co(OH) 的电催化活性2通过引入 WO[公式：见正文] 并在 Co(OH) 之间形成纳米复合材料X（WO[公式：见正文]和MC用于低成本、方便、高效的水氧化。