Abstract In this work, the lamellae-like Ni/Co metal-organic framework (Ni/Co-MOF) is synthesized via a facile one-step hydrothermal process. By combining the advantages of mixed-metallic components and unique structures, the fabricated Ni/Co-MOF electrode exhibits a superior specific capacity (568 C g−1 at 1 A g−1), good rate performance (80.1% retention at 10 A g−1) and high cycling stability (75.5% retention over 3000 charge/discharge cycles). Besides, the assembling asymmetric supercapacitor based on the Ni/Co-MOF and reduced graphene oxide (RGO) exhibits a high energy density of 42.24 Wh kg−1 at the power density of 800 W kg−1, and excellent electrochemical cycling stability of 82.6% retention of original capacitance over 6000 charge/discharge cycles.

中文翻译：

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镍/钴双金属金属有机骨架超薄纳米片，具有增强的超级电容器性能

摘要 在这项工作中，通过简单的一步水热法合成了片状 Ni/Co 金属有机骨架 (Ni/Co-MOF)。通过结合混合金属组分和独特结构的优点，制造的 Ni/Co-MOF 电极表现出优异的比容量（1 A g-1 时为 568 C g-1）、良好的倍率性能（10 A g-1) 和高循环稳定性（在 3000 次充电/放电循环中保留 75.5%）。此外，基于Ni/Co-MOF和还原氧化石墨烯（RGO）组装的非对称超级电容器在800 W kg-1的功率密度下表现出42.24 Wh kg-1的高能量密度，以及82.6的优异电化学循环稳定性6000 次充电/放电循环后原始电容的保留百分比。