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Using FeCl3 as a Solvent, Template, and Activator To Prepare B, N Co-Doping Porous Carbon with Excellent Supercapacitance
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-09-12 , DOI: 10.1021/acssuschemeng.9b02431
Shuting Qiu 1 , Zehong Chen 1 , Hao Zhuo 1 , Yijie Hu 1 , Qingzhong Liu 1 , Xinwen Peng 1 , Linxin Zhong 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-09-12 , DOI: 10.1021/acssuschemeng.9b02431
Shuting Qiu 1 , Zehong Chen 1 , Hao Zhuo 1 , Yijie Hu 1 , Qingzhong Liu 1 , Xinwen Peng 1 , Linxin Zhong 1
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B, N co-doped porous carbon is fabricated by using chitosan as a carbon precursor, boric acid as a boron source and porogen, and ferric chloride as a multifunctional reagent (i.e., solvent, template, and activator). This strategy results in large amounts of micropores and especially mesopores that are beneficial for electrolyte ions diffusion. The as-synthesized carbon has abundant micropores and mesopores, desirable pore distribution, partial graphite structure, and dual heteroatoms doping, and thus outstanding supercapacitance performances. In a three-electrode system, the B, N co-doped porous carbon shows a high specific capacitance of 393 F g–1 at 0.5 A g–1. In a two-electrode system, the porous carbon exhibits a high capacitance of 205 F g–1 at 1.0 A g–1, and its energy density is high up to 19.1 Wh kg–1 at a power density of 400 W kg–1. Furthermore, the porous carbon exhibits excellent supercapacitance in ionic liquid electrolyte. In addition, the porous carbon possesses excellent cycling stability.
中文翻译:
使用FeCl3作为溶剂,模板和活化剂制备具有优异超级电容的B,N共掺杂多孔碳
B,N共掺杂的多孔碳是通过使用壳聚糖作为碳前驱体,硼酸作为硼源和致孔剂,以及氯化铁作为多功能试剂(即溶剂,模板和活化剂)制备的。该策略导致大量的微孔,尤其是中孔,这有利于电解质离子的扩散。合成后的碳具有丰富的微孔和中孔,理想的孔分布,部分石墨结构和双杂原子掺杂,因此具有出色的超电容性能。在三电极系统中,B,N共掺杂的多孔碳在0.5 A g –1处显示出393 F g –1的高比电容。在两电极系统中,多孔碳在1.0 A g时显示出205 F g –1的高电容-1,并且其能量密度高达19.1瓦千克-1在400瓦kg的功率密度-1。此外,多孔碳在离子液体电解质中表现出优异的超电容。另外,多孔碳具有优异的循环稳定性。
更新日期:2019-09-13
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
使用FeCl3作为溶剂,模板和活化剂制备具有优异超级电容的B,N共掺杂多孔碳
B,N共掺杂的多孔碳是通过使用壳聚糖作为碳前驱体,硼酸作为硼源和致孔剂,以及氯化铁作为多功能试剂(即溶剂,模板和活化剂)制备的。该策略导致大量的微孔,尤其是中孔,这有利于电解质离子的扩散。合成后的碳具有丰富的微孔和中孔,理想的孔分布,部分石墨结构和双杂原子掺杂,因此具有出色的超电容性能。在三电极系统中,B,N共掺杂的多孔碳在0.5 A g –1处显示出393 F g –1的高比电容。在两电极系统中,多孔碳在1.0 A g时显示出205 F g –1的高电容-1,并且其能量密度高达19.1瓦千克-1在400瓦kg的功率密度-1。此外,多孔碳在离子液体电解质中表现出优异的超电容。另外,多孔碳具有优异的循环稳定性。