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多尺度点-线-片异质结构氮掺杂碳点-Ti3C2Tx/丝纳米纤维
作者:小柯机器人 发布时间:2023/3/19 20:04:34

南京工业大学武观团队报道了用于高性能纤维形超级电容器的多尺度点-线-片异质结构氮掺杂碳点- Ti3C2Tx /丝纳米纤维。相关研究成果发表在2023年3月14日出版的《德国应用化学》。

纤维状超级电容器(FSCs)已成为未来可穿戴纺织电子和元宇宙技术的重要战略柔性储能材料之一。

该文中,研究人员开发了基于氮掺杂碳点Ti3C2Tx/丝纳米纤维(NCDs-Ti3C2Tx/SNFs)的多尺度点线板异质结构微纤维的高性能FSCs。由于NCDs-Ti3C2Tx/SNF具有更大的层间距、丰富的多孔通道、加速的H+离子传输动力学、大的电导率和优异的机械强度/柔韧性,因此在1M H2SO4电解质中具有高的体积电容(2218.7 F cm-3)和可逆充放电稳定性。

此外,固态FSCs具有高能量密度(57.9 mWh cm-3)、良好的电容(1157 F cm-3)和长寿命循环(40000次循环后电容保持率为82.3%),实现了实际的能源供应应用(为灯、手表和玩具车供电)。

附:英文原文

Title: Multiscale Dot-Wire-Sheet Heterostructured Nitrogen-Doped Carbon Dots-Ti3C2Tx/Silk Nanofibers for High-Performance Fiber-Shaped Supercapacitors

Author: Zhenjie Zhou, Peng Li, Zengming Man, Xiaolin Zhu, Siyuan Ye, Wangyang Lu, Guan Wu, Wenxing Chen

Issue&Volume: 2023-03-14

Abstract: Fiber-shaped supercapacitors (FSCs) have become one of the significantly strategical flexible energy-storage materials towards future wearable textile electronics and metaverse technologies. Here, we develop the high-performance FSCs based on multiscale dot-wire-sheet heterostructure microfiber of nitrogen-doped carbon dots-Ti3C2Tx/silk nanofibers (NCDs-Ti3C2Tx/SNFs) hybrids via microfluidic fabrication. Due to the enlarged interlayer spacing, plentiful porous channels, accelerated H+ ion transport dynamics, large electrical conductivity and excellent mechanical strength/flexibility, the NCDs-Ti3C2Tx/SNFs possesses high volumetric capacitance (2218.7 F cm-3) and reversible charge-discharge stability in 1M H2SO4 electrolyte. Furthermore, the solid-state FSCs present high energy density (57.9 mWh cm-3), good capacitance (1157 F cm-3), long-life cycles (82.3% capacitance retention after 40000 cycles), which realize the actual energy-supply applications (powering lamp, watch and toy car).

DOI: 10.1002/anie.202301618

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202301618

期刊信息

Angewandte Chemie:《德国应用化学》,创刊于1887年。隶属于德国化学会,最新IF:16.823
官方网址:https://onlinelibrary.wiley.com/journal/15213773
投稿链接:https://www.editorialmanager.com/anie/default.aspx