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首页> 外文期刊>Journal of porous materials >Rich nitrogen-doped ordered mesoporous carbon synthesized by copolymerization of PMDA and ODA with SBA-15 as a template for high-performance supercapacitors
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Rich nitrogen-doped ordered mesoporous carbon synthesized by copolymerization of PMDA and ODA with SBA-15 as a template for high-performance supercapacitors

机译：通过将PMDA和ODA与SBA-15用作高性能超级电容器的模板进行共聚而合成的富氮掺杂有序介孔碳

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摘要

Polyimide-based nitrogen-doped ordered mesoporous carbon was successfully synthesised utilising SBA-15 as a hard template. By controlling the molar ratio of 4,4 '-oxydianiline to pyromellitic dianhydride during copolymerising and carbonisation, nitrogen-doped ordered mesoporous carbon (NOMCx) with various nitrogen content and pore distribution were obtained. When the molar ratio of 4,4 '-oxydianiline to pyromellitic dianhydride was 6, NOMC6 presented the highest content of nitrogen (7.94 wt%) and moderate specific surface area (890 m(2) g(-1)). Accordingly, NOMC6 showed a high specific capacitance of 282 F g(-1) at 0.1 A g(-1), and excellent cycle stability (no capacitance loss over 10,000 cycles) in 1 M H2SO4. The synthesised ordered mesoporous carbons do not show a significant decrease of capacitive performance in the current density range of 2 to 20 A g(-1). Furthermore, a symmetrical supercapacitor consisting of two NOMC6 electrodes exhibited an energy density of 4.77 Wh kg(-1) at power density of 500 W kg(-1) (1 A g(-1)).
机译：以SBA-15为硬模板成功合成了聚酰亚胺基氮掺杂有序介孔碳。通过控制共聚和碳化过程中的4,4'-羟基二苯胺与均苯四甲酸二酐的摩尔比，可获得具有各种氮含量和孔分布的氮掺杂有序介孔碳（NOMCx）。当4,4'-羟基二苯胺与均苯四甲酸二酐的摩尔比为6时，NOMC6的氮含量最高（7.94 wt％），比表面积中等（890 m（2）g（-1））。因此，NOMC6在0.1 A g（-1）时显示出282 F g（-1）的高比电容，并在1 M H2SO4中具有出色的循环稳定性（在10,000次循环中无电容损失）。合成的有序介孔碳在2至20 A g（-1）的电流密度范围内未显示出电容性能的显着降低。此外，由两个NOMC6电极组成的对称超级电容器在500 W kg（-1）（1 A g（-1））的功率密度下显示出4.77 Wh kg（-1）的能量密度。

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