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Synthesis of high-concentration B and N co-doped porous carbon polyhedra and their supercapacitive properties

机译：高浓度B，N共掺杂多孔碳多面体的合成及其超电容性能

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摘要

Taking phenylboronic acid as a boron source and ZIF-11 as a carbon template, boron and nitrogen co-doped porous carbon polyhedra (BN-PCPs) were prepared through a simple procedure for the first time. The as-prepared BN-PCPs were characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and typical electrochemical methods. The results show that the developed BN-PCPs possess 10.68 atom% B and 8.1 atom% N with uniform distribution, and excellent electrochemical capacitive properties with high specific capacitance of 262 F g(-1) at 20 mV s(-1) in 1.0 M H2SO4 aqueous solution and excellent long-term charge-discharge stability (no obvious degradation during 40 000 charge-discharge cycles at 20 A g(-1)).
机译：以苯基硼酸为硼源，ZIF-11为碳模板，首次通过简单的步骤制备了硼氮共掺杂多孔碳多面体（BN-PCPs）。所制备的BN-PCP通过扫描电子显微镜，透射电子显微镜，拉曼光谱，X射线衍射，X射线光电子能谱和典型的电化学方法表征。结果表明，所开发的BN-PCPs的B含量为10.68％（原子），N含量为8.1％（原子），并且具有良好的电化学电容性能，在20 mV s（-1）的1.0中具有262 F g（-1）的高比电容。 M H2SO4水溶液和出色的长期充放电稳定性（在20 A g（-1）的40 000次充放电循环中无明显降解）。

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