Enhanced Electrochemical Performances of Hollow-Structured N-Doped Carbon Derived from a Zeolitic Imidazole Framework (ZIF-8) Coated by Polydopamine as an Anode for Lithium-Ion Batteries

Da-Won Lee, Achmad Yanuar Maulana, Chaeeun Lee, Jungwook Song, Cybelle M. Futalan and Jongsik Kim
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Da-Won Lee: Department of Chemistry, Dong-A University, Busan 49315, Korea
Achmad Yanuar Maulana: Department of Chemistry, Dong-A University, Busan 49315, Korea
Chaeeun Lee: Department of Chemistry, Dong-A University, Busan 49315, Korea
Jungwook Song: Department of Chemistry, Dong-A University, Busan 49315, Korea
Cybelle M. Futalan: Department of Environmental Science, Ateneo de Manila University, Quezon City 1108, Philippines
Jongsik Kim: Department of Chemistry, Dong-A University, Busan 49315, Korea

Energies, 2021, vol. 14, issue 9, 1-12

Abstract: Doping heteroatoms such as nitrogen (N) and boron (B) into the framework of carbon materials is one of the most efficient methods to improve the electrical performance of carbon-based electrodes. In this study, N-doped carbon has been facilely synthesized using a ZIF-8/polydopamine precursor. The polyhedral structure of ZIF-8 and the effective surface-coating capability of dopamine enabled the formation of N-doped carbon with a hollow structure. The ZIF-8 polyhedron served as a sacrificial template for hollow structures, and dopamine participated as a donor of the nitrogen element. When compared to ZIF-8-derived carbon, the HSNC electrode showed an improved reversible capacity of approximately 1398 mAh·g −1 after 100 cycles, with excellent cycling retention at a voltage range of 0.01 to 3.0 V using a current density of 0.1 A·g −1 .

Keywords: Li-ion batteries; anode; N-doped carbon; Metal-Organic Frameworks (MOFs); hollow carbon structure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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