高性能锌离子混合电容器原位剥落策略在碳纳米纤维阴极上实现多化学吸附位点

IF 31.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters Pub Date : 2022-04-15 DOI:10.1007/s40820-022-00839-z

Hongcheng He, Jichun Lian, Changmiao Chen, Qiaotian Xiong, Cheng Chao Li, Ming Zhang

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引用次数: 46

摘要

高吡啶/吡咯氮掺杂和羰基功能化纳米片在柔性电纺多孔碳纳米纤维薄膜阴极上具有比表面积大、亲水性强和高Zn2+吸附活性的优点。锌离子杂化电容器在40 a g−1下，在20万次循环中具有99.2%的高电容保持率。提出了羰基和吡啶/吡咯氮原子之间的协同Zn2+储存机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Enabling Multi-Chemisorption Sites on Carbon Nanofibers Cathodes by an In-situ Exfoliation Strategy for High-Performance Zn–Ion Hybrid Capacitors

Highlights

The high pyridine/pyrrole nitrogen-doped and carbonyl-functionalized nanosheets on flexible electrospun porous carbon nanofibers film cathode integrates the advantages of large specific surface area, strong hydrophilicity and high Zn²⁺ adsorption activity.
The Zinc-ion hybrid capacitors exhibits a high capacitance retention of 99.2% over 200,000 cycles at 40 A g⁻¹.
A synergistic Zn²⁺ storage mechanism between carbonyl and pyridine/pyrrole nitrogen atoms is proposed.

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

42.40

自引率

4.90%

发文量

715

审稿时长

13 weeks

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary and open-access journal that focus on science, experiments, engineering, technologies and applications of nano- or microscale structure and system in physics, chemistry, biology, material science, pharmacy and their expanding interfaces with at least one dimension ranging from a few sub-nanometers to a few hundreds of micrometers. Especially, emphasize the bottom-up approach in the length scale from nano to micro since the key for nanotechnology to reach industrial applications is to assemble, to modify, and to control nanostructure in micro scale. The aim is to provide a publishing platform crossing the boundaries, from nano to micro, and from science to technologies.