从废纸尿裤中原位掺氮多孔碳作为高性能超级电容器电极材料

IF 4.6 3区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
RSC Advances Pub Date : 2025-06-18 DOI:10.1039/D5RA00450K
Guozhen Song, Yijun Tian, Jieni Wang, Shuqin Zhang, Haodong Hou, Chenlin Wei, Leichang Cao, Jinglai Zhang and Shicheng Zhang
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引用次数: 0

摘要

本研究提出了一种以废婴儿纸尿裤中的富氮高吸水性材料(SAP)为原料合成氮掺杂多孔碳(NAPC)的方法,并将其用作高性能超级电容器的电极材料。通过快速热解和KOH活化,得到的NAPC材料具有高比表面积和丰富的微孔结构,促进了高效的离子传输和能量储存。电化学测试表明,在6 M KOH电解液中,当电流密度为1 a g−1时,NAPC-650-4样品的比电容为353 F g−1,循环10000次后电容保持率为87.65%。这一发现表明该材料具有优异的速率性能和循环稳定性。此外,由NAPC-650-4组装的对称超级电容器在125 W kg - 1的功率密度下提供了7.22 Wh kg - 1的能量密度,显示出其在高功率应用中的潜力。本研究不仅为废纸尿裤的回收利用提供了可行的绿色解决方案,也为高性能电极材料的开发提供了新的途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

In situ nitrogen-doped porous carbon from waste baby diapers as a high-performance supercapacitor electrode material

In situ nitrogen-doped porous carbon from waste baby diapers as a high-performance supercapacitor electrode material

This study presents a method for the synthesis of nitrogen-doped porous carbon (NAPC) from nitrogen-rich superabsorbent material (SAP) found in waste baby diapers for application as an electrode material for high-performance supercapacitors. Through rapid pyrolysis and KOH activation, the resulting NAPC material exhibited a high specific surface area and abundant microporous structure, which promoted efficient ion transport and energy storage. Electrochemical testing demonstrated that the NAPC-650-4 sample achieved a specific capacitance of 353 F g−1 at a current density of 1 A g−1 in a 6 M KOH electrolyte, with a capacitance retention rate of 87.65% after 10 000 cycles. This finding indicates the material's excellent rate capability and cycle stability. Furthermore, the symmetric supercapacitor assembled from NAPC-650-4 delivered an energy density of 7.22 Wh kg−1 at a power density of 125 W kg−1, which showed its potential for high-power applications. This research not only provides a feasible green solution for recycling waste diapers but also a new approach for the development of high-performance electrode materials.

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来源期刊
RSC Advances
RSC Advances chemical sciences-
CiteScore
7.50
自引率
2.60%
发文量
3116
审稿时长
1.6 months
期刊介绍: An international, peer-reviewed journal covering all of the chemical sciences, including multidisciplinary and emerging areas. RSC Advances is a gold open access journal allowing researchers free access to research articles, and offering an affordable open access publishing option for authors around the world.
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