Abstract Here, we demonstrate the controlled synthesis of nanoporous carbon and cobalt oxide (NPC Co3O4) composite from a single precursor source zeolitic imidazolate framework-67, which leads to some new interesting electrochemical properties. The composite shows an outstanding electrochemical performance for measuring the oxidation of glucose in alkaline solution. The differential pulse voltammetric response of the NPC–Co3O4 composite electrode for the sensing of glucose exhibits a linear relation with the concentration range of 5 × 10−12–2.05 × 10−10 M and a low detection limit of 2 × 10−12 M. The fabricated sensor shows high sensitivity, reliable reproducibility, and good selectivity. The sensor, when used for the direct determination of glucose in blood serum samples, shows good recovery (98.5–101.0%), suggesting its feasibility for biomedical applications. In addition, in a given potential range of 0–1 V, the composite exhibits a high capacitance (885 F g−1 at a current density of 2.5 A g−1) and long cycle life (∼94% capacitance retention after 10,000 cycles).

中文翻译：

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金属有机骨架衍生的纳米多孔碳/Co 3 O 4 复合电极作为测定葡萄糖和高性能超级电容器的传感平台

摘要 在这里，我们展示了从单一前体来源沸石咪唑酯骨架 67 可控合成纳米多孔碳和氧化钴 (NPC Co3O4) 复合材料，这导致了一些新的有趣的电化学性能。该复合材料显示出优异的电化学性能，可用于测量碱性溶液中葡萄糖的氧化。用于检测葡萄糖的NPC-Co3O4复合电极的差分脉冲伏安响应与5×10-12-2.05×10-10 M的浓度范围和2×10-12 M的低检测限呈线性关系. 制成的传感器显示出高灵敏度、可靠的重现性和良好的选择性。该传感器用于直接测定血清样品中的葡萄糖时，显示出良好的回收率 (98.5–101.0%)，表明其在生物医学应用中的可行性。此外，在给定的 0-1 V 电位范围内，该复合材料表现出高电容（在 2.5 A g-1 的电流密度下为 885 F g-1）和长循环寿命（10,000 次循环后~94% 的电容保持率）。