Inorg Chem. 2023 Feb 20;62(7):3084-3094. doi: 10.1021/acs.inorgchem.2c03879. Epub 2023 Feb 9.
A cadmium-based metal-organic framework () is synthesized in a facile manner at ambient temperature by an easy slow diffusion process. The three-dimensional (3D) structure of is authenticated by single-crystal X-ray diffraction studies and exhibits a cuboid-shaped morphology with an average edge length of ∼1.13 μm. The prepared was found to be electroactive in nature, which resulted in a specific capacitance of 647 F g at 4 A g by maintaining a retention of ∼78% over 10,000 successive cycles in the absence of any binder. Further, to distinguish the efficiency of electrodes, different electrolytes (NaOH, KOH, and LiOH) were explored, wherein NaOH revealed a higher capacitive response due to its combined effect of ionic and hydrated ionic radii. To investigate the practical applicability, an asymmetric supercapacitor (ASC) device is fabricated by employing as the positive electrode and activated carbon (AC) as the negative electrode, enabling it to light a commercial light-emitting diode (LED) bulb (∼1.8 V). The as-fabricated ASC device delivers comparable energy density and power density.
一种基于镉的金属有机骨架（）在环境温度下通过简单的缓慢扩散过程被简便地合成。通过单晶 X 射线衍射研究对的三维（3D）结构进行了验证，其呈现出长方体形状，平均边缘长度约为 1.13μm。所制备的表现出电活性，在没有任何粘合剂的情况下，在 10,000 次连续循环中保持约 78%的保留率，其比电容可达 647 F g。此外，为了区分电极的效率，探索了不同的电解质（NaOH、KOH 和 LiOH），其中 NaOH 由于其离子和水合离子半径的综合作用表现出更高的电容响应。为了研究实际应用，通过使用作为正极和活性炭（AC）作为负极来制造非对称超级电容器（ASC）器件，使其能够点亮商用发光二极管（LED）灯泡（约 1.8 V）。所制造的 ASC 器件具有可比的能量密度和功率密度。
