Metal–organic frameworks (MOFs) are network-like frameworks composed of transition metals and organic ligands containing oxygen or nitrogen. Because of its highly controllable composition and ordered porous structure, it has broad application prospects in the field of material synthesis. In this work, Zn₄(PYDC)₄(DMF)₂∙3DMF (ZPD) was synthesized via a hydrothermal method. Self-doped nitrogen porous carbon ZPDC-T was then prepared by one-step carbonization. The results show that the self-doped nitrogen porous carbon ZPDC-850 has a micro/mesoporous structure with a specific surface area of 1520 m² g⁻¹ and a nitrogen content of 6.47%. When a current density is 1.0 A g⁻¹, its specific capacitance is 265.1 F g⁻¹. After 5000 times of constant current charging and discharging, the capacitance retention rate was 79.2%. Thus, self-doped nitrogen porous carbon ZPDC-850 exhibits excellent electrochemical properties and good cyclic stability. Therefore, the self-doped nitrogen porous carbon derived from MOFs can be a promising electrode material for supercapacitors.

中文翻译：

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Zn-MOFs自掺杂氮多孔碳的制备及电化学性能

金属有机骨架（MOF）是类网络骨架，由过渡金属和含有氧或氮的有机配体组成。由于其高度可控的组成和有序的多孔结构，在材料合成领域具有广阔的应用前景。本文通过水热法合成了Zn ₄（PYDC）₄（DMF）₂ ∙3DMF（ZPD）。然后通过一步碳化制备自掺杂氮多孔碳ZPDC-T。结果表明，自掺杂氮多孔碳ZPDC-850具有微/介孔结构，比表面积为1520m ² g ^-1，氮含量为6.47％。当电流密度为1.0 A g ^-1时，其比电容为265.1 F g ^-1。经过5000次恒流充放电，电容保持率为79.2％。因此，自掺杂氮多孔碳ZPDC-850表现出优异的电化学性能和良好的循环稳定性。因此，衍生自MOF的自掺杂氮多孔碳可以成为有希望的超级电容器电极材料。