Metal–organic frameworks (MOFs) are class of porous materials that can be assembled in a modular manner by using different metal ions and organic linkers. Owing to their tunable structural properties, these materials are found to be useful for gas storage and separation technologies, as well as for catalytic applications. A cost‐effective zinc‐based MOF ([Zn(bpcda)(bdc)]_n) is prepared by using N,N′‐bis(pyridin‐4‐ylmethylene)cyclohexane‐1,4‐diamine [N,N′‐bis(pyridin‐4‐ylmethylene)cyclohexane‐1,4‐diamine] and benzenedicarboxylic acid (bdc) linkers. This new material exhibits remarkable photoelectrochemical (PEC) catalytic activity in water splitting for the evolution of oxygen. Notably, this non‐noble metal‐based MOF, without requiring immobilization on other supports or containing metal particles, produced a highest photocurrent density of 31 μA cm⁻² at 0.9 V, with appreciable stability and negligible photocorrosion. Advantageously for the oxygen evolution process, no external reagents or sacrificial agents are required in the aqueous electrolyte solution.

中文翻译：

---

水溶性锌基金属有机骨架的合成，表征和光电化学催化研究

金属有机框架（MOF）是一类多孔材料，可以通过使用不同的金属离子和有机连接剂以模块化方式组装。由于其可调节的结构特性，这些材料可用于气体存储和分离技术以及催化应用。甲成本效益的基于锌的MOF（[锌（bpcda）（BDC）] _Ñ）是通过使用制备Ñ，Ñ双（吡啶-4-基亚甲基）环己烷-1,4-二胺[ Ñ，Ñ'-双（吡啶-4-基亚甲基）环己烷-1,4-二胺]和苯二甲酸（bdc）接头。这种新材料在水分解过程中表现出卓越的光电化学（PEC）催化活性，可释放出氧气。值得注意的是，这种基于非贵金属的MOF无需固定在其他载体上或包含金属颗粒，在0.9 V时产生的最高光电流密度为31μAcm ^-2，具有明显的稳定性和可忽略的光腐蚀。有利地，对于氧气释放过程，在电解质水溶液中不需要外部试剂或牺牲剂。