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首页> 外文期刊>International Journal of Electrochemical Science >Porous N-doped Carbon Derived from ZIF-8/Reduced Graphene oxide/Polypyrrole Composite for High Performance Supercapacitor
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Porous N-doped Carbon Derived from ZIF-8/Reduced Graphene oxide/Polypyrrole Composite for High Performance Supercapacitor

机译：ZIF-8 /还原型氧化石墨烯/聚吡咯复合材料衍生的多孔氮掺杂碳，用于高性能超级电容器

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摘要

Porous N-doped carbon nanomaterials have great potential in supercapacitor owing to their highsurface area, excellent chemical stability and good hydrophilic property. In this work, ZIF-8nanocystals were well grown on the surface of polypyrrole/reduced graphene oxide composite (ZIF-8/PPy/rGO). After carbonization of ZIF-8/PPy/rGO and chemical etching of the product, a porouscarbon with N-doping (PNC) and proper structure was obtained. In comparison with the carbonizedZIF-8 and PPy/rGO, the ZIF-8/PPy/rGO derived carbon possesses much higher electrochemicalperformance. As electrodes in supercapacitor, the PNC exhibits a significantly enhanced specificcapacitance (236 F g ?1 at 1 A g ?1 ), superior rate capability (retained 86.1 % from 1 to 20 A g ?1 ) andexcellent cycling stability (over 96.8% capacity retained after 10000 cycles), exhibiting its potential forelectrode materials with high performance.
机译：多孔氮掺杂碳纳米材料具有高的表面积，优异的化学稳定性和良好的亲水性，因此在超级电容器中具有巨大的潜力。在这项工作中，ZIF-8纳米囊藻在聚吡咯/还原氧化石墨烯复合材料（ZIF-8 / PPy / rGO）的表面上生长良好。在将ZIF-8 / PPy / rGO碳化并对产品进行化学蚀刻之后，获得了具有N掺杂（PNC）和适当结构的多孔碳。与碳化的ZIF-8和PPy / rGO相比，ZIF-8 / PPy / rGO衍生的碳具有更高的电化学性能。作为超级电容器中的电极，PNC的比电容显着提高（在1 A g？1时为236 F g？1），更高的倍率能力（从1至20 A g？1保持86.1％）和出色的循环稳定性（超过96.8％的容量）在10000次循环后保持），展现出其对高性能电极材料的潜力。

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