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| Type |
Poster Presentation |
| Area |
Electrochemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
ELEC.P-577 |
| Subject |
FeOF Nanoparticles Wrapped in Graphitic Carbon Layers as a Cathode Material In-Situ Prepared from Fe-MIL-88B for Sodium-Ion Batteries |
| Authors |
Achmad Yanuar Maulana, Jongsik Kim*
Department of Chemistry, Dong-A University, Korea
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| Abstract |
In recent decades, lithium-ion batteries (LIBs) have been dominantly utilized as a main power source for portable electronics and electric vehicles. However, lithium metal has the limited reverses in specific regions and is very expensive. These problems make LIBs difficult to use in large-scale energy storage systems (ESS). Sodium-ion batteries (SIBs) have been considered as a promising alternative candidate for replacing LIBs because of the high abundance and economic benefits of sodium. Iron oxyfluoride (FeOF) has been attractive as one of most suitable cathode materials for SIBs because it has high theoretical capacity (about 788 mAhg-1), low cost, and environmental friendliness. However, FeOF has often suffered from poor rate capability and cycling stability due to its low electronic conductivity and ion-diffusion coefficient. In this work, we synthesized FeOF nanoparticles wrapped in graphitic carbon layers (FeOF/GCL) in-situ prepared from Fe-containing metal-organic frameworks (e.g. Fe-MIL-88B). FeOF/GCL exhibited the improved initial discharge capacity of about 480 mAhg-1 with superior cycling stabilities to bulk FeOF at a current density of 20 mAg-1 and voltage range of 1.0-4.0 V. |
| E-mail |
iyanmaulana@che.undip.ac.id |
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121st General Meeting of the KCS