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Enabling Multi-Chemisorption Sites on Carbon Nanofibers Cathodes by an In-situ Exfoliation Strategy for High-Performance Zn–Ion Hybrid Capacitors
Nano-Micro Letters ( IF 31.6 ) Pub Date : 2022-04-15 , DOI: 10.1007/s40820-022-00839-z
Hongcheng He 1 , Jichun Lian 1 , Changmiao Chen 2 , Qiaotian Xiong 1 , Cheng Chao Li 3 , Ming Zhang 1
Affiliation  

  • 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.



中文翻译:

通过高性能锌离子混合电容器的原位剥离策略在碳纳米纤维阴极上实现多化学吸附位点

  • 柔性电纺多孔碳纳米纤维膜阴极上高吡啶/吡咯氮掺杂和羰基功能化的纳米片集比表面积大、亲水性强和Zn 2+吸附活性高等优点于一身。

  • 锌离子混合电容器在 40 A g −1下表现出超过 200,000 次循环的 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 Zn 2+存储机制。

更新日期:2022-04-18
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