Metal–organic frameworks (MOFs) have emerged as promising contenders in storage applications due to their unique properties. In this study, we synthesized CuZn-MOF-P_x by meticulously adjusting the laser power during fabrication. This precise tuning substantially enhanced controlled defects and porosity, enhancing the electrode’s surface area and specific capacitance. The optimized CuZn-MOF-P₇ electrode demonstrated a specific capacitance of 3.7 F cm^–2 at 1 mA cm^–2 current density. Furthermore, the electrode showed outstanding durability, holding onto 97% of its capacitance at 50 mA cm^–2 after 16000 cycles. To demonstrate its practical utility, we engineered a planar hybrid supercapacitor (PHSC) employing CuZn-MOF-P₇ as the cathode and activated carbon (AC) as the anode. This configuration displayed 22.3 μWh cm^–2 and 6.75 mW cm^–2 of energy and power density, respectively, highlighting its efficiency and applicability. This work’s significance lies in the innovative use of laser irradiated approach for improving the performance of MOF-based materials for energy storage devices.

中文翻译：

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用于储能应用的 MOF 基超级电容器中调制结构缺陷的激光诱导加工

金属有机框架（MOF）因其独特的性能而成为存储应用领域有前途的竞争者。在这项研究中，我们通过在制造过程中精心调整激光功率合成了 CuZn-MOF-P _x 。这种精确的调节大大增强了受控缺陷和孔隙率，从而增强了电极的表面积和比电容。优化的 CuZn-MOF-P ₇电极在 1 mA cm ^–2电流密度下表现出 3.7 F cm ^–2的比电容。此外，该电极表现出出色的耐用性，在 16000 次循环后在 50 mA cm ^–2下仍保持 97% 的电容。为了证明其实用性，我们设计了一种平面混合超级电容器（PHSC），采用 CuZn-MOF-P ₇作为阴极，活性炭（AC）作为阳极。该配置的能量和功率密度分别为 22.3 μWh cm ^–2和 6.75 mW cm ^–2，凸显了其效率和适用性。这项工作的意义在于创新地使用激光辐照方法来提高用于储能器件的 MOF 基材料的性能。