Two identical layered metal–organic frameworks (MOFs) (CoFRS and NiFRS) are constructed by using flexible 1,10‐bis(1,2,4‐triazol‐1‐yl)decane as pillars and 1,4‐benzenedicarboxylic acid as rigid linkers. The single‐crystal structure analysis indicates that the as‐synthesized MOFs possess fluctuant 2D networks with large interlayer lattices. Serving as active electrode elements in supercapacitors, both MOFs deliver excellent rate capabilities, high capacities, and longstanding endurances. Moreover, the new intermediates in two electrodes before and after long‐lifespan cycling are also examined, which cannot be identified as metal hydroxides in the peer reports. After assembled into battery‐supercapacitor (BatCap) hybrid devices, the NiFRS//activated carbon (AC) device displays better electrochemical results in terms of gravimetric capacitance and cycling performance than CoFRS//AC devices, and a higher energy‐density value of 28.7 Wh kg⁻¹ compared to other peer references with MOFs‐based electrodes. Furthermore, the possible factors to support the distinct performances are discussed and analyzed.

中文翻译：

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高性能BatCap混合设备的2D金属有机框架（MOF）。

通过使用柔性的1,10-双（1,2,4-三氮唑-1-基）癸烷和刚性的1,4-苯二甲酸构造两个相同的层状金属-有机骨架（MOF）（CoFRS和NiFRS）连接器。单晶结构分析表明，合成后的MOF具有具有大的层间晶格的波动2D网络。作为超级电容器中的有源电极元件，这两种MOF均具有出色的倍率能力，高容量和持久的耐用性。此外，还检查了长寿命循环前后两个电极中的新中间体，在同行报告中不能将其识别为金属氢氧化物。组装成电池超级电容器（BatCap）混合设备后，^-1与其他基于MOF的电极的参考相比。此外，讨论和分析了支持不同性能的可能因素。