Mesoporous carbon prepared by etching halloysite nanotubes (HNTs) with pyrrole as a precursor for a sulfur carrier of superior lithium-sulfur batteries

Liu Jiuqing; Wang Cheng; Cui Jinqiang; Li Jie; Li Qihou; Liu Meng; Xi Yang

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Mesoporous carbon prepared by etching halloysite nanotubes (HNTs) with pyrrole as a precursor for a sulfur carrier of superior lithium-sulfur batteries

机译：通过用吡咯作为吡咯作为优质锂 - 硫电池的硫载体的前体来制备介孔碳

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Using pyrrole as a carbon precursor and halloysite nanotubes (HNT) as a templating agent, mesoporous carbon (MC) was prepared by template etching and combined with sulfur as a composite cathode for lithium-sulfur batteries. The mesoporous carbon/sulfur (MC/S) composite cathode exhibits a first cycle discharge specific capacity of 1355 mA h g(-1) at 0.2C, and the utilization rate of active sulfur can reach 80.9%. Even after 500 cycles, the discharge specific capacity still remains at 496.9 mA h g(-1) when tested at 0.5C. Furthermore, the hollow groove structure present in the MC/S electrode provides a large number of active sites for electrochemical reactions. The prepared MC/S composite cathode not only has a high discharge specific capacity and good cycle stability, but also increases the energy density of the lithium-sulfur battery. Therefore, this preparation process of MC is more conducive to practical application.

机译：用吡咯作为碳前体和霍罗伊钛矿纳米管（HNT）作为模板剂，通过模板蚀刻制备介孔碳（MC）并将硫作为锂 - 硫电池的复合阴极组合。中孔碳/硫（MC / S）复合阴极在0.2℃下表现出1355mA H（-1）的第一循环放电比容量，活性硫的利用率可达到80.9％。甚至在500次循环后，当在0.5℃下测试时，放电特定容量仍保持在496.9 mA H（-1）。此外，在MC / S电极中存在的中空槽结构提供了大量的用于电化学反应的活性位点。制备的MC / S复合阴极不仅具有高放电特定容量和良好的循环稳定性，而且还增加了锂 - 硫电池的能量密度。因此，MC的这种制备过程更有利于实际应用。

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来源
《RSC Advances》 |2019年第22期|共8页
作者
Liu Jiuqing; Wang Cheng; Cui Jinqiang; Li Jie; Li Qihou; Liu Meng; Xi Yang;
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作者单位

Cent S Univ Sch Met &

Environm Changsha 410083 Hunan Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Hunan Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Hunan Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Hunan Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Hunan Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Hunan Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Hunan Peoples R China;

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正文语种 eng
中图分类化学;
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1. Mesoporous carbon prepared by etching halloysite nanotubes (HNTs) with pyrrole as a precursor for a sulfur carrier of superior lithium-sulfur batteries [J] . Liu Jiuqing, Wang Cheng, Cui Jinqiang, RSC Advances . 2019,第22期

机译：通过用吡咯作为吡咯作为优质锂 - 硫电池的硫载体的前体来制备介孔碳
2. Mesoporous carbon prepared by etching halloysite nanotubes (HNTs) with pyrrole as a precursor for a sulfur carrier of superior lithium–sulfur batteries [J] . Jiuqing Liu, Cheng Wang, Jinqiang Cui, RSC Advances . 2019,第22期

机译：用吡咯作为高级锂硫电池硫载体的前驱体蚀刻埃洛石纳米管（HNT）制备的介孔碳
3. Mesoporous carbon prepared by etching halloysite nanotubes (HNTs) with pyrrole as a precursor for a sulfur carrier of superior lithium–sulfur batteries [J] . Jiuqing Liu, Cheng Wang, Jinqiang Cui, RSC Advances . 2019,第22期

机译：用吡咯作为高级锂硫电池硫载体的前驱体蚀刻埃洛石纳米管（HNT）制备的介孔碳
4. Carbon nanotube / sulfur nanocomposites for lithium-sulfur batteries [C] . Susanne Dorfler, Markus Hagen, Holger Althues Annual World Conference on Carbon . 2012

机译：碳纳米管/硫纳米复合材料用于锂 - 硫磺电池
5. Heteroatom-Doped Graphene Nanotubes as Carbon Host Materials for High-Performance Lithium-Sulfur Batteries [D] . Hultman, Benjamin Thomas 2018

机译：杂原子掺杂石墨烯纳米管作为高性能锂硫电池的碳基质材料
6. Synthesis and Electrochemical Performance of Graphene @ Halloysite Nanotubes/Sulfur Composites Cathode Materials for Lithium-Sulfur Batteries [O] . Tian Cen, Yong Zhang, Yanhong Tian, 2020

机译：石墨烯的合成与电化学性能@ Halloysite纳米管/硫复合材料锂 - 硫磺电池的阴极材料
7. Lithium-Sulfur Batteries: The Fusion of Imidazolium-Based Ionic Polymer and Carbon Nanotubes: One Type of New Heteroatom-Doped Carbon Precursors for High-Performance Lithium-Sulfur Batteries (Adv. Funct. Mater. 44/2017) [O] . Hui Pan, Zhibin Cheng, Zhubing Xiao, 2017

机译：锂 - 硫磺电池：基于咪唑鎓离子聚合物和碳纳米管的融合：一种用于高性能锂 - 硫磺电池的一种新型杂原子掺杂的碳前体（ADV。Funct。Mater。44/2017）

Mesoporous carbon prepared by etching halloysite nanotubes (HNTs) with pyrrole as a precursor for a sulfur carrier of superior lithium-sulfur batteries

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