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Synthesis of Highly Uniform N-Doped Porous Carbon Spheres Derived from Their Phenolic-Resin-Based Analogues for High Performance Supercapacitors
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-02-11 , DOI: 10.1021/acs.iecr.8b04823 Xiying Li 1 , Yufeng Song 1 , Lei You 1 , Li Gao 1 , Yong Liu 1 , Wei Chen 1 , Liqun Mao 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-02-11 , DOI: 10.1021/acs.iecr.8b04823 Xiying Li 1 , Yufeng Song 1 , Lei You 1 , Li Gao 1 , Yong Liu 1 , Wei Chen 1 , Liqun Mao 1
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A novel route is developed to synthesize highly uniform N-doped porous carbon spheres (NCS) with a tailorable size ranging from 86 to 205 nm depending on their precursors of phenolic-resin-based analogues. Solid-state NMR and FTIR spectra confirm that the as-synthesized polymer spheres are composed of typical phenolic resin. After activation treatment with KOH, the NCS with a diameter of 86 nm possesses a high surface area of 1462 m2 g–1 coupled with hierarchical (micro and meso) pore structures. Upon these advantages, the prepared carbon sample endows the supercapacitor with high specific capacitance up to 247 F g–1 at 1 A g–1 with excellent rate performance and high cycling stability. Also, the specific energy density is 6.74 Wh kg–1 at a current density of 0.1 A g–1. Therefore, the as-prepared uniform N-doped porous carbon spheres represent a promising candidate for an efficient electrode material.
中文翻译：
源自高性能酚超级电容器的酚醛树脂类似物的高度均匀的N掺杂多孔碳球的合成
开发了一种新颖的方法来合成高度均匀的N掺杂多孔碳球（NCS），取决于其基于酚醛树脂的类似物的前体，其可定制的尺寸范围为86至205 nm。固态NMR和FTIR光谱证实合成后的聚合物球体由典型的酚醛树脂组成。经KOH活化处理后，直径为86 nm的NCS具有1462 m 2 g –1的高表面积，并具有分层的（微观和中观）孔隙结构。基于这些优势，制备的碳样品赋予超级电容器1 A g –1时高达247 F g –1的高比电容，并具有出色的倍率性能和高循环稳定性。另外，比能量密度为6.74 Wh kg–1在0.1 A g的电流密度下–1。因此，所制备的均匀的N掺杂的多孔碳球代表了有效电极材料的有前途的候选者。
更新日期：2019-02-13
中文翻译：
源自高性能酚超级电容器的酚醛树脂类似物的高度均匀的N掺杂多孔碳球的合成
开发了一种新颖的方法来合成高度均匀的N掺杂多孔碳球（NCS），取决于其基于酚醛树脂的类似物的前体，其可定制的尺寸范围为86至205 nm。固态NMR和FTIR光谱证实合成后的聚合物球体由典型的酚醛树脂组成。经KOH活化处理后，直径为86 nm的NCS具有1462 m 2 g –1的高表面积，并具有分层的（微观和中观）孔隙结构。基于这些优势，制备的碳样品赋予超级电容器1 A g –1时高达247 F g –1的高比电容，并具有出色的倍率性能和高循环稳定性。另外，比能量密度为6.74 Wh kg–1在0.1 A g的电流密度下–1。因此，所制备的均匀的N掺杂的多孔碳球代表了有效电极材料的有前途的候选者。
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