Kiai, Maryam Sadat and Aslfattahi, Navid and Baydogan, Nilgun and Samylingam, Lingenthiran and Kadirgama, Kumaran and Kok, Chee Kuang (2025) Lignin-based microporous carbon nanofibers/S (LMCF@S) high performance cathode for superior room temperature Na–S batteries. Materials Chemistry and Physics, 339 (130768). pp. 1-7. ISSN 0254-0584. (Published)
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Abstract
Sodium-sulfur batteries (Na–S) present a compelling option for large-scale energy storage due to their significant storage capacity, coupled with the abundant and cost-effective nature of their constituent materials. However, their practical deployment is hindered by several critical issues, including the low conductivity of sulfur and its reduction products, volume expansion, the shuttling effect of polysulfides, and the formation of sodium dendrites, all of which can contribute to rapid capacity degradation. Herein, lignin-derived microporous carbon nanofibers/S (LMCF@S) were successfully produced by employing polyvinylpyrrolidone (PVP) and lignin as the precursor and zinc nitrate hexahydrate (ZNH) as an additive, combination of electrospinning, pre-oxidation, and carbonization techniques. The cell is assembled with LMCF@S cathode and Na foil anode, resulting in a remarkable capacity of 642 mAh g− 1 over 100 cycles at a current density of 1 A g− 1 . The high density of micropores in the LMCF@S cathode facilitates robust chemical bonding and rapid redox kinetics during the conversion reaction, resulting in enhanced utilization of sodium polysulfides (NaPSs) for the advancement of nextgeneration sodium-sulfur (Na–S) batteries.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Capacity retention; Cost effective; Lignin; Na–S; Porosity |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Mechanical and Automotive Engineering Technology |
| Depositing User: | Mrs. Nurul Hamira Abd Razak |
| Date Deposited: | 18 Jun 2025 07:26 |
| Last Modified: | 18 Jun 2025 07:26 |
| URI: | http://umpir.ump.edu.my/id/eprint/44865 |
| Download Statistic: | View Download Statistics |
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