Nitrogen doped hollow porous carbon fibers derived from polyacrylonitrile for Li-S batteries
Source abstract
Abstract
Hollow porous carbon fibers for Li-S battery electrodes were prepared by the KOH activation of carbon prepared from hollow polyacrylonitrile fibers. The fibers had a high specific surface area of 2 491 m2·g−1, a large pore volume of 1.22 cm3·g−1 and an initial specific capacity of 330 mAh·g−1 at a current density of 1 C. To improve their electrochemical performance, the fibers were modified by treatment with hydrazine hydrate to prepare nitrogen-doped hollow porous carbon fibers with a specific surface area of 1 690 m2·g−1, a pore volume of 0.84 cm3·g−1 and a high nitrogen content of 8.81 at%. Because of the increased polarity and adsorption capacity produced by the nitrogen doping, the initial specific capacity of the fibers was increased to 420 mAh·g−1 at a current density of 1 C.
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Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Confining sulfur in integrated composite scaffold with highly porous carbon fibers/vanadium nitride arrays for high‐performance lithium–sulfur batteries [J]10.1002/adfm.201706391 ↗
2. A lithium-sulfur battery with a high areal energy density [J]10.1002/adfm.201400935 ↗
3. A graphene foam electrode with high sulfur loading for flexible and high energy Li-S batteries [J]10.1016/j.nanoen.2014.11.025 ↗
4. Hierarchically micro/mesoporous activated graphene with a large surface area for high sulfur loading in Li-S batteries [J]10.1039/C4TA06142J ↗
5. A lithium-sulfur cathode with high sulfur loading and high capacity per area: a binder-free carbon fiber cloth-sulfur material [J]10.1039/C4CC03410D ↗
6. 3D interconnected electrode materials with ultrahigh areal sulfur loading for Li-S batteries [J]10.1002/adma.201506014 ↗
7. An in-situ solidification strategy to block polysulfides in lithium-sulfur batteries [J]10.1016/j.ensm.2021.02.012 ↗
8. Nanostructured sulfur cathodes [J]10.1039/c2cs35256g ↗
9. Advances in lithium-sulfur batteries based on multifunctional cathodes and electrolytes [J]10.1038/nenergy.2016.132 ↗
10. Hollow carbon nanofiber-encapsulated sulfur cathodes for high specific capacity rechargeable lithium batteries [J]10.1021/nl2027684 ↗
11. An organodiselenide comediator to facilitate sulfur redox kinetics in lithium-sulfur batteries [J]
12. CoFe2O4 coated carbon fiber paper fabricated via a spray pyrolysis method for trapping lithium polysulfide in Li-S batteries [J]10.1016/j.apsusc.2019.01.145 ↗
13. Sulfur/carbon nanocomposite-filled polyacrylonitrile nanofibers as a long life and high capacity cathode for lithium-sulfur batteries [J]10.1039/C4TA06976E ↗
14. Metallic MoS2 nanoflowers decorated graphene nanosheet catalytically boosts the volumetric capacity and cycle life of lithium–sulfur batteries [J]
15. Nitrogen-rich hierarchical porous carbon paper for a free-standing cathode of lithium sulfur battery[J]10.1016/j.carbon.2020.10.078 ↗
16. Tailoring 3D carbon foam using CNTs and MnO2 to fabricate stable lithium/dissolved lithium polysulfide batteries [J]10.1021/acs.langmuir.1c00337 ↗
17. Encapsulation of Sulfur into N-doped porous carbon cages by a facile, template-free method for stable lithium-sulfur cathode [J]10.1002/smll.202001027 ↗
18. A free-standing carbon nanofiber interlayer for high-performance lithium-sulfur batteries [J]10.1039/C4TA06511E ↗
19. Sulfur-impregnated activated carbon fiber cloth as a binder-free cathode for rechargeable Li-S batteries [J]10.1002/adma.201103274 ↗
20. A freestanding selenium disulfide cathode based on cobalt disulfide-decorated multichannel carbon fibers with enhanced lithium storage performance [J]10.1002/anie.201708105 ↗
21. Nitrogen adsorption studies of PAN-based activated carbon fibers prepared by different activation methods [J]10.1006/jcis.2000.7078 ↗
22. Nitrogen-enriched porous carbon fiber as a CO2 adsorbent with superior CO2 selectivity by air activation [J]10.1021/acs.energyfuels.9b02769 ↗
23. Nitrogen-enriched porous polyacrylonitrile-based carbon fibers for CO2 capture [J]10.1021/acs.iecr.8b01836 ↗
24. Nitrogen- and oxygen-enriched 3D hierarchical porous carbon fibers: synthesis and superior supercapacity [J]10.1039/C5TA02702K ↗
25. Pulverizing Fe2O3 nanoparticles for developing Fe3C/N‐codoped carbon nanoboxes with multiple polysulfide anchoring and converting activity in Li-S batteries [J]10.1002/adfm.202011249 ↗
26. Strong chemical interaction between lithium polysulfides and flame-retardant polyphosphazene for lithium-sulfur batteries with enhanced safety and electrochemical performance [J]10.1002/adma.202007549 ↗
27. Novel tetrazole-functionalized absorbent from polyacrylonitrile fiber for heavy-metal ion adsorption [J]10.1002/app.35641 ↗
28. Cross-linked PAN-based thin-film composite membranes for non-aqueous nanofiltration [J]10.1016/j.reactfunctpolym.2014.09.015 ↗
29. High-conductivity 1T-MoS2 catalysts anchored on a carbon fiber cloth for high-performance lithium-sulfur batteries [J]10.1039/D1QM00674F ↗
30. The enhancement of polysulfides adsorption for stable lithium-sulfur batteries cathode enabled by N-doped wrinkled graphene using solvothermal method [J]10.1002/slct.201702484 ↗
31. Good low-temperature properties of nitrogen-ienriched porous carbon as sulfur hosts for high-performance Li-S batteries [J]10.1021/acsami.6b04355 ↗
32. First principles prediction of nitrogen-doped carbon nanotubes as a high-performance cathode for Li–S batteries [J]10.1039/c3ra41333k ↗