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Preparation and electrochemical performances of core-shell microtubular PPy/CNT/MOF ternary composites with spherical Co-MOF as sacrificial template
Polymer ( IF 4.6 ) Pub Date : 2024-04-04 , DOI: 10.1016/j.polymer.2024.127004
Ping An , Wenqing Li , Yuxiao Leng , Tong Zhang , Jingyi Zhu , Tingxi Li , Wei Li , Yongqin Han

Here we developed PPy/CNT/MOF ternary composites with microtubular structure, which was triggered by both the disassembly of Co-MOF and the reassembly of phosphomolybdate acid (PMA) and the released ligand. As a result, the CNTs and polypyrroles (PPys) are intertwined and deposited on the surface of the composites, forming a core-shell structure. Among the ternary composites, the PM/CNT/MOF-2 electrode (PMA concertation of 5 mM) provides a specific capacitance of 650 F g at 1 A g. The assembled flexible supercapacitor device delivered a high energy density of 68.9 μWh cm (45.9 Wh kg) at power density of 800 μW cm (800 W kg), a good long-term cyclic stability, and superior mechanical flexibility.

中文翻译:

以球形Co-MOF为牺牲模板的核壳微管PPy/CNT/MOF三元复合材料的制备及电化学性能

在这里,我们开发了具有微管结构的PPy/CNT/MOF三元复合材料,该复合材料是由Co-MOF的分解以及磷钼酸(PMA)和释放的配体的重新组装触发的。结果,碳纳米管和聚吡咯(PPys)相互缠绕并沉积在复合材料的表面,形成核壳结构。在三元复合材料中,PM/CNT/MOF-2 电极(PMA 浓度为 5 mM)在 1 A g 时提供 650 F g 的比电容。组装的柔性超级电容器装置在800 μW cm(800 W kg)的功率密度下提供了68.9 μWh cm(45.9 Wh kg)的高能量密度、良好的长期循环稳定性和优异的机械灵活性。
更新日期:2024-04-04
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